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Home My WebLink AboutAPA397SliSITNA HYDRO AQUATIC STUDIES PHASE II DATA REPORT Winter Aquatic Studies (October, 1982 -May, 1983) L ARLIS L .b Alaska Resources 1 rary & Information Serv· An h Ices c orage, Alaska SIISITNA HYDRO AQUATIC STUDIES PHASE II DATA REPORT Winter Aquatic Studies (October, 1982 -May, 1983) by ALASKA DEPARTMENT OF FISH AND GAME Susitna Hydro Aquatic Studies 2207 Spenard Road Anchorage Alaska 99503 1983 Tl< I~=<S' ,.$'8 tr-~8 Y1o, !~/ PREFACE This report on 1982-1983 winter studies in the Susitna hydroelectric study area was prepared by the Alaska Department of Fish and Game {ADF&G) for the Alaska Power Authority {APA) and its principal con- tractor, Harza-Ebasco Susitna Joint Venture. It is a product of the ongoing five year study plan initiated by the ADF&G in November, 1980 to assess the feasibility of the proposed two dam Susitna Hydroelectric project. Basic goals of the five year plan (Acres 1980) are as follows: 1) describe the fishery and aquatic habitat resources of the Sus itna River; 2) assess the impacts of development and operation of the Susitna Hydroelectric project on these resources; and 3) propose mitigation measures to minimize adverse impacts. Item 1 is entirely the responsibility of the ADF&G aquatic studies program while item~ 2 and 3 are primarily the responsibilities of other investigators with ADF&G providing most of the field data to address these items. To provide data that will assist in meeting each of the above goals, research responsibilities were subdivided into three major elements: Adult Anadromous Fish Studies (AA); Resident and Juvenile Anadromous Fish Studies (RJ) and Aquatic Habitat and Instream Flow Studies (AH). The pr·imary objective for each section is as follows. i 1) Adult Anadromous Fish Studies determine the seasonal distribution and relative abundance of adult anadromous fish populations produced within the study area; 2) Resident and Juvenile Anadromous Fish Studies -determine the seasonal distribution and relative abundance of selected resident and juvenile anadromous fish populations within the study area; and 3) Aquatic Habitat and Instream Flow Stijdies -characterize the seasonal habitat requirements of selected resident fish species within the study relationship between the availability of anadromous and area and the these habitat conditions and the mainstem discharge of the Susitna River. This report contains the following types of data collected from September, 1982, through May, 1983: 1) Continuous surface and intragravel temperature monitoring. 2) Salmon incubation and emergence studies. 3) Timing and habitat conditions of burbot spawning in the lower river. 4) Winter progress report of radio telemetry investigations of resident species. ii These data, as well as data from other ADF&G reports and sources are expected to be summarized and analyzed by the Arctic Environmental Information and Data Center (AEIDC) to evaluate post-project conditions. Questions concerning this report should be directed to: Thomas W. Trent Alaska Department of Fish and Game Su Hydro Aquatic Studies Program 2207 Spenard Road Anchorage, Alaska 99503 Telephone (907) 274-7583 iii ARLIS Alaska Resources Library & Information Servtces JUlchorage,AJaska TABLE OF CONTENTS PREFACE i LIST OF FIGURES ................................................... viii LIST OF TABLES LIST OF PLATES ••••••••••••••••••••• 'II •••••••••• • ••••• Cl •••••••••••• xiii XV 1. 0 I NTROOUCTION • . . . . . . . . • . . . . . . . . . . . . . . . . . . • . . . . . . • . . . . . . . . . . . 1 2.0 CONTINUOUS SURFACE AND INTRAGRAVEL WATER TEMPERATURE STUDY . 3 2.1 Objectives ···················e••······················ 3 2.2 Methods ......•......... e.............................. 5 2.2.1 Instrumentation •.. •••.•.•.••• ...... ••... .. ... .. 5 2.2.2 Site Selection ..•..•.•••....................... 7 2.3 Resu·lts ............................................... 7 2.4 Discussion .. ..... ......... .. ... ... .. ...... ...... .. ... . 19 3.0 SALMON INCUBATION AND EMERGENCE STUDIES •................... 22 3.1 Objectives ........... ........ ... ..... ... ..... ... ... ... 25 3. 2 Methods . . . . . . . . . . . . . . . . . . . . . . • . . . . . . . • . . . . . . . . . . . . . . . . 25 3. 2 .1 Stu·dy sites ................. e • • • • • • • • • • • • • • • • • • 27 3.2.2 Sampling techniques for habitat measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 3.2.2.1 Water temperature..................... 37 3.2.2.2 Standpipes 37 3.2.3 Sampling techniques for embryo deve 1 opment study . . . . . . . . . . . . • . . . . . . . . . . . . . . . . . 46 3.3 Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 3. 3.1 Habitat data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 3.3.1.1 Temperature ........ ...... ..... ...... .. 49 3.3.1.2 Dissolved Oxygen . ........ ... .......... 50 i. . . ,-: \ iv 3. 3 . 1 . 2 pH ............ II •••••••••• ·• • • • • • • • • • • • • • 56 3. 3 .1. 4 Specific Conductance . . . . . . . . • . . . . • . • . • 56 3.3.2 Development and emergence data •....•......•.•.. 60 3.3.2.1 Chum salmon . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 3.3.2.2 Sockeye salmon •..........•.....•...... 68 3.4 Discussion . • . . . . . . . . . • . . . • . • . . • • . . . . . . . . . . . . • . . . . • . • . • "72 3.4.1 Chum salmon . ....... ....... ..... ....... ... .. .. . . 74 3.4.2 Sockeye salmon ........ e........................ 76 3.4.3 Conclusions .......•........ ~................... 79 4.0 BURBOT SPAWNING IN THE SUSITNA RIVER BELOW DEVIL CANYON .... 83 4.1 Objectives ·····················••o····················· 83 4. 2 Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 4.2.1 Study site locations .....................•..... 84 4.2.2 Sampling techniques and determination of sexual maturity .... ..... ..... .. ... .. ........... 87 4. 2. 3 Habitat measurements • . . . . . . . . . . . . . . . • . • . . . . . . . . 87 4.3 Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 4.3.1 Habitat data ....•..•....•.•..•....•••...•..•... 89 4.3.2 Sexual development............................. 89 4.3.3 Age, length and sex composition ..•..•....•..... 92 4. 4 Discuss.i on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 4.4.1 Timing and location of spawning 4.4.2 Age, length and sex composition 4.4.3 Conclusions v 93 96 98 5.0 WINTER RADIO TELEMETRY INVESTIGATIONS OF RES I DENT FISH . . . . . • . . . . • . . . . • . • . . . . . . . • . . . . • . . . . . . . . . . • . . . . 100 5.1 Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . • . • . . • . . . . . . 100 5.1.1 Radio telemetry studies below Devil Canyon 100 5.1.2 Radio telemetry studies above Devil Canyon 101 5.2 Methods ......................................... "······ 101 5.2.1 Radio Tags..................................... 101 5.2.2 Transmitter implantation .....•....•.......•.... 102 5.2.3 Tracking •••••••••••••••···~~~···••e•e•lilc••e••o•f)• 105 5.2.4 Habitat data collection . • . . .. . . .. .. .. .. .. .. .. .. 106 5 . 3 Res u 1 t s ......•..... $ •••••••••••••• " •• oil •••• ~ ..... ~ • • • • • • • 10 7 5.3.1 Rainbow trout below Devil Canyon .........•...•. 107 5.3.2 Burbot below Devil Canyon 111 5.3.3 Arctic grayling above Devil Canyon •............ 112 5.4 Discussion ....................... ~~~.e"' ... .., • ..,".e•••······ 120 5.4.1 Rainbow trout below Devil Canyon............... 120 5.4.2 Burbot below Devil Canyon 122 5.4.3 Arctic grayling above Devil Canyon ............. 123 6.0 CONTRIBUTORS ··································f)·"·········· 126 7.0 ACKNOWLEDGEMENTS 8.0 LITERATURE CITED 9.0 APPENDICES Appendix A Continuous surface and intragravel water temperatures Appendix B Intragravel habitat data (standpipes) vi 128 129 Appendix C Burbot winter catch data and age, length, and sex data Appendix D Winter radio telemetry data on burbot, rainbow trout, and Arctic grayling vii LIST OF FIGURES Figure 2-1 Figure 2-2 Figure 2-3 Figure 2-4 Figure 2-5 Figure 2-6 Locations of datapod temperature recorders in the Susitna River, Chulitna River confluence (Talkeetna) to Devil Canyon reach, during the ice- covered season 1982-83 ..•...••.•.....•..•••.....•... Mean daily intragravel and surface water temperatures, collected with datapod recorder, at the mouth of Slough 8A from August 21, 1982 through March 10, 1983 and provisional Susitna River discharge data from the USGS Gold Creek gage, 15292000 (USGS 1982) ............. c••················c~········ Mean daily intragravel and surface water temperatures, collected with a datapod recorder, at the middle Slough 8A site from April 29 through June 2, 1983 and provisional Susitna River discharge data from the USGS Gold Creek gage, 15292000 (USGS 1982} •.......•........... Mean daily intragravel and surface water temperatures, collected with a datapod recorder at LRX 29 from October 31, 1982 through April 27, 1983 and provisional Susitna River discharge data from the USGS Gold Creek gage 15292000 (USGS, 1982) .•...•..••...•............ Mean daily intragravel and surface water temperatures, collected with a datapod recorder, at upper Slough 8A from August 21, 1982 through April 27, 1983, and provisional Susitna River discharge data from the USGS Gold Creek gage, 15292000 (USGS , 198 2 ) •· ......................................... . Mean daily intragravel and surface water temperatures, collected with a datapod recorder, at Slough 9 from August 22, 1982 through April 28, 1983, and provisional Susitna River discharge data from the USGS Gold Creek gage, 15292000 (USGS, 1982 and 1983) ..................•........................ viii 4 8 9 10 11 12 Figure 2-7 Figure 2-8 Figure 2-9 Figure 2-10 Figure 2-11 Figure 2-12 Mean daily intragravel and surface water temperatures, collected with a datapod recorder, at Slough 11 from August 21, 1982 through April 28, 1983, and provisional Susitna River discharge data from the USGS Gold Creek gage, 15292000 (USGS 1982).................... 13 Mean daily intragravel and surface water temperatures, collected with a datapod recorder, at Gold Creek from October 18, 1982 through January 30, 1983, and provisional Susitna River discharge data from the USGS Gold Creek gage, 15292000 (USGS 1982).. .......... ... ..... ..•. ... ....... ..... .. 14 Mean daily intragravel and surface water temperatures, collected with a datapod recorder, at Slough 16B from August 21, 1982 through January 4, 1983, and provisional Susitna River discharge data from the USGS Gold Creek gage, 15292000 (USGS 1982)............ ............... .. ..... ....... 15 Mean daily intragravel and surface water temperatures, collected with a datapod recorder, at Slough 19 from August 21, 1982 through April 27, 1983, and provisional Susitna River discharge data from the USGS Gold Creek gage, 15292000 (USGS 1982)......................................... 16 Mean daily intragravel and surface water temperatures, collected with a datapod recorder, at the mouth of Slough 21 from September 17, 1982 through April 27, 1983, and pro- visional Susitna River discharge data from the USGS Gold Creek gage, 15292000 (USGS 1982)................................ 17 Mean daily intragravel and surface water temperatures, collected with a datapod recorder, at upper Slough 21 from August 21, 1982 through April 27, 1983, and provisional Susitna River discharge data from the USGS Gold Creek gage, 15292000 (USGS 1982)......... ... ..... ..... ..... .. ... ........ 18 ix Figure 3-1 Figure 3-2 Figure 3-3 Figure 3-4 Figure 3-5 Figure 3-6 Figure 3-7 Figure 3-8 Figure 3-9 Figure 3-10 Figure 3-11 Figure 3-12 The location of seven incubation and emergence study sites·along the Susitna River between the Chulitna River confluence (Talkeetna) and Devil Canyon, August, 1982 through April, 1983............ 26 Incubation and emergence study site .at Slough 8A (RM 125.3)............................. 28 Incubation and emergence study sites at Slough 9 (RM 128.3).............................. 29 Incubation and emergence study sites at Slough 11 (RM 135.3}............................. 30 Incubation and emergence study site at Mainstem Side Channel A (RM 136.2}............... 31 Incubation and emergence study site at Mainstem Side Channel B (RM 137.3)............... 32 Incubation and emergence study sites at Slough 20 (RM 140.1)............................. 33 Incubation and emergence study site at Slough 21 (RM 142.0)........... ................ .. 34 Scaled drawing of the steel driver used to install polyvinyl chloride (PVC) standpipes into gravel substrates ............ o ••• ~~ ••••••••••••••• Cl ••••••••• o 41 Diagram of polyvinyl chloride (PVC) standpipe installed in substrate.................... 42 Summary (mean and range: n=IO) of intragravel and corresponding surface water temperature data collected along left {L) and right (R) banks (looking upstream) of sloughs 8A, 9, 11 and 21, Susitna River, Alaska, spring {April 15-18), 1983............................... 51 Summary (mean and range) of intragravel and corresponding surface water temperature data collected along left (L) and right (R) banks (looking upstream) of sloughs 8A, 9, 11 and 21, Susitna River, Alaska, spring (April 29-May 2), 1983. {n=IO for each mean except for Slough 21, left bank, where n=9) •••••••••••••••••••••••••••••••••••••••••••••••• 52 X Figure 3-13 Figure 3-14 Figure 3-15 Figure 3-16 Figure 3-17 Figure 3-18 Figure 3-19 Figure 3-20 Figure 4-1 Summary (mean and range: n=10) of intragravel and corresponding surface water dissolved oxygen data collected along left (L) and right (R) banks (looking upstream) of sloughs BA, 9, 11 and 21, Susitna River, Alaska, spring (April 15-18), 1983.................. 54 Summary (mean and range) of intragravel and corresponding surface water dissolved oxygen data collected along left (L) and right (R) banks (looking upstream) of sloughs 8A, 9, 11 and 21, Susitna River, Alaska, spring (April 29-May 2), 1983. (n=10 for each mean except for Slough 9, left bank, where n=13; Slough 11, right bank where n=4 and Slough 21, left bank , where n = 9 ) e e • Cl • • e e e • e • e e e • e e e • • • e e e • • e • G e e e e II e 55 Summary (mean and range) of intragravel and corresponding surface specific conductance data collected along left (L) and right (R) banks (looking upstream) of sloughs BA, 9, 11 and 21, Susitna River, Alaska, spring (April 29-May 2), 1983. (n=10 for each mean except for Slough 9, left bank, where n=13; Slough 11, right bank, where n=4; and Slough 21, left bank, where n=9)............................... 58 Embryonic development, hatching, yolk sac absorption, and emergence data for chum salmon at three sloughs, winter, 1982- 1983 . . . . . . . . . . . . . • • . . . . . . . . . . . . . . . . . . • . . . . . . . . • . . . . . 6 7 Embryonic development, hatching, yolk sac absorption and emergence data for sockeye salmon at three sloughs, winter 1983 -1983 .. e e e e e e e e e e e e e e e ••• e e e e e e e e • e e e e e II e e • e e • e e 71 Accumulated temperature units for intra- gravel water at three sloughs, winter, 1982-1983........................................... 75 Effect of mean incubation temperature on time to 50 percent hatching for chum sa 1 man. . . . . . . . . . . . . . . . . . . • . . . . . . . . . . . . . • . • . . . . . 78 Effect of mean incubation temperature on time to 50 percent hatching for sockeye salmon...................................... 81 Suspected burbot spawning area at the mouth (TRM 0.0) of the Deshka R i v e r ( RM 40 • 6 ) • • • • • • • • • • • • • • • • • • • • • • . . . • • . • • • • • • • • • 8 5 xi Figure 4-2 Figure 4-3 Figure 5-1 Figure 5-2 Figure 5-3 Figure 5-4 Figure 5-5 Figure 5-6 Suspected burbot spawning area at TRM 2.0 of the Deshka River ( RM 40. 6) ......•...................... " ...... Cl • o ~ • • • 86 Age-length relationships for burbot captured in the Susitna River between Cook Inlet and Devil Canyon, December, 1982, through March, 1983................................. 94 Movements of five radio-tagged rainbow trout in the Susitna River drainage below Devil Canyon, September, 1982, through April, 1983 ......................................... 108 Movements of five radio-tagged rainbow trout in the Susitna River drainage below Devil Canyon, September, 1982, through March ' 1983 ...•........ e •••••••••••••••••••• D •••• 0 0 • • 109 Movements of six radio-tagged burbot in the Susitna River below Devil Canyon, September, 1982, through March, 1983 .•.............. 113 Movements of six radio-tagged Arctic grayling in the Susitna River drainage, Devil Canyon and above, August, 1982, through January , 1983 . • . . . . . . . . . . • . . . . • . . . . . . . . . . . . . . . . . . . . . . 116 Movements of five radio-tagged Arctic grayling in the Susitna River drainage, Devil Canyon and above, August, 1982, through March, 1983 ....................................... o •• 117 Movements of four radio-tagged Arctic grayling in the Susitna River drainage, Devil Canyon and above, August, 1982, through Apri·l, 1983 .......................................... 118 xii LIST OF TABLES Table 3-1 Table 3-2 Table 3-3 Table 3-4 Table 3-5 Table 3-6 Table 3-7 Table 4-1 Summary of two-way analysis of variance (ANOVA) on specific conductance data obtained inside standpipes located along left and right banks of sloughs 8A, 9, 11, and 21, Susitna River, Alaska, April 29 - May 2, 1983......................................... 59 Summary of mean specific conductance values obtained inside standpipes in sloughs 8A, 9, 11, and 21, Susitna River, Alaska, April 29-May 2, 1983.............................. 61 Mean temperatures (°C) recorded within chum and sockeye redds by YSI intragravel probe and thermometer from December, 1982 through April, 1983............. 64 Development and emergence data for chum salmon on the Susitna River between the Chulitna River confluence and Devil Canyon, August, 1982 to April, 1983......................... 65 Development and emergence data for sockeye salmon from selected sloughs and sidechannels on the Susitna River between the Chulitna River confluence and Devil Canyon, August, 1982 to April, 1983......................... 69 Comparison of accumulated temperature units (Tu•s) needed to produce 50 percent hatching of chum salmon eggs and 50 percent emergence of chum salmon alevins at selected sites on the Susitna River with other areas in Alaska.......................... 77 Comparison of accumulated temperature units (Tu•s) needed to produce 50 percent hatching of sockeye salmon eggs and 50 percent emergence of sockeye salmon alevins at selected sites on the Susitna River with other areas in Alaska and Canada.................... 80 Physical and chemical habitat characteristics of suspected burbot spawning habitat at the mouth (TRIYl 0.0) of the Deshka River (RM 40.6) ...................................... 90 xiii Table 4-2 Table 5-l Table 5-2 Physical and chemical characteristics of suspected burbot spawning habitat at TRI\1 2.0 of the Deshka River (RM 40.6) ................ 91 Physical and chemical habitat characteristics measured in the vicinity of radio-tagged burbot in the Susitna River during March, 1983 .............. 114 Timing of radio-tagged Arctic grayling outmigration from tributaries into the mainstem Susitna River above Devi 1 Canyon ...................................... 119 xiv LIST OF PLATES Plate 3-1 Plate 3-2 Plate 3-3 Plate 3-4 Plate 3-5 Plate 4-1 Plate 5-1 Upwelling area in slough. Opening in ice cover indicates higher temperature of upwelling water...................... 36 Standpipe (with 48 one-eighth inch holes) used for monitoring intragravel water quality and driver used for installation........................ 39 Installation of standpipes for monitoring of intragravel water quality in Slough 11 ........•..•..........•......... 40 Egg pumping for chum and sockeye salmon eggs during the winter studies at Slough 21 (RM 142.0)..................... 47 Stages of salmon egg and alevin development from beginning of fertilization to just before emergence •..•........... -............................ 63 Necropsy of a burbot to determine sex and relative maturity at the Deshka River (RM 40.6}, mid-January, 1983................................... 88 Surgical implantation of a radio transmitter into a burbot at mainstem Susitna (RM 84.1) ...•.................•.... 104 XV 1.0 INTRODUCTION The winter i nvesti gat ions of 1982-1983 include four separate studies: 1) surface and intragravel water temperatures, 2) salmon incubation and emergence and incubation habitat, 3) burbot spawning, and 4) radio telemetry investigations of resident fish. The surface and intragravel water temperature study provided winter water temperatures for the incubation and emergence studies and also furnished data for physical temperature and ice modelling studies conducted by other investigators. The salmon incubation and emergence studies were conducted to determine the timing of embryonic development and emergence of chum and sockeye salmon under natural conditions in the Susitna River, to determine the physical and chemical conditions of the surface and intragravel waters, and to determine the effect of these conditions on the salmon embryos and alevins. In addition, relationships between surface and intragravel water conditions and importance of upwelling water to incubation were cons.i de red. Because burbot apparently spawn in areas affected by mainstem flows and temperatures, a study of their spawning habitat and timing was initiated in areas where this species concentrates during the winter months. Prior to this study, little was known about where or when burbot spawn in the Susitna River or the habitat conditions under which spawning takes place. -1- The radio telemetry studies of rainbow trout, burbot, and Arctic grayling provided information on the timing of fall redistribution into the overwintering habitat, the location and habitat conditions of overwintering areas, and the location and habitat of spawning areas. In general, these studies provide new information on aspects of the biology of anadromous fish and on the important resident species not previously defined in earlier winter reports. These data provide insight as to possible constraints of the winter habitat conditions on the species investigated. -2- 2.0 CONTINUOUS SURFACE AND INTRAGRAVEL WATER TEMPERATURE STUDY Continuous monitoring of surface and intragravel water temperature was initiated during the winter of 1981-82 at thirteen sites within the Talkeetna to Devil Canyon reach of the Susitna River (Figure 2-1). These studies were continued during the winter of 1982-83 to accomplish the following three objectives. 2.1 Objectives 1) Obtain baseline surface and intragravel water temperature data in slough and mainstem Susitna River habitats during the ice-covered season. 2' Compare surface and intragravel water temperatures in slough areas used by spawning chum salmon to those not used for spawning, and to provide data for calculating thermal units required in the incubation and emergence studies. 3) Provide a data base for calibration and evaluation of mainstem temperature modeling studies. -3- Figure 2-1. DEVIL CANYON / DAM SITE ADFSG SU HYDRO AQUATIC HAS !TAT AND INSTREAM FLOW. STUDIES SUSITNA RIVER 1982-83 ICE-COVERED SEASON TEMPERATURE RECORDER LOCATIONS (Q]-DATAPOO RECORDER SITES 0 10 Miles Locations of datapod temperature recorders in the Susitna River, Chulitna River con- fluence (Talkeetna) to Devil Canyon reach during the ice-covered season 1982-83. 4 2. 2 Methods 2.2.1 Instrumentation Omnidata Model OP212S datapod recorders were used to continuously monitor surface and intragravel, water temperature. Intragravel datapod temperature probes were installed one foot into the substrate surface using slotted, hollow steel spikes within which the thermistor is installed. Detailed procedures are discussed in the ADF&G Phase I and Phase II Procedures Manuals (ADF&G 1981d and 1983e). 2.2.2 Site selection Oatapod temperature recorders were placed within sloughs to obtain surface and intragravel water temperature data from areas where chum salmon spawning was known to occur (or known not to occur as in Slough 16) during the two most recent spawning seasons (1981 and 1982). Temperature recorders were placed in the mainstem Susitna River as far in from the waters edge as possible at the time of installation. The following sub-sections describe the specific rationale for installation at each site. Sites are combined where rationale waJ the same. ! ? When selecting a site, consideration was given to the safety of per- sonnel and the somewhat fragile nature of instruments. Areas charac- teristic of high water velocity, debris, bank erosion, or shoreline ice action were avoided where possible. -5- Slough 21 Mouth, Slough 11, Slough 9, Slough 8A Mouth One set of surface and intragravel datapod temperature probes were placed directly in a chum salmon redd observed in each slough during the fall of 1982. Middle Slough 8A A datapod temperature probe was installed in the middle Slough 8A site in a chum salmon spawning area on April 28, 1983 to replace the instru- ment at the mouth which was not functional due to damage from ice. Upper Slough 8A, Upper Slough 21, Slough 19 Datapod temperature probes were installed in the locations of chum salmon redds which were observed in 1981. In 1982, salmon had no access to these reaches of Sloughs 8A, 21 and 19 due to low water (ADF&G 1983f) and no redds were observed. Slough 19 is the only upland slough (ADF&G 1983a) in which continuous intragravel temperatures were obtained --sloughs SA, 9, 11, 16B, and 21 are side sloughs. Slough 16B Slough 168 was chosen because it had relatively little upwelling and was not used by spawning salmon. Temperature probes were installed midway down the slough, in what appeared to be suitable spawning substrate and -6- where intragravel flow was evident by the absence of ice and snow and presence of slight upwelling at the time of installation. Mainstem at LRX 29 and Mainstem at Gold Creek Surface and intragravel temperature data collected from these sites include the first continuous intragravel water temperatures recorded in the mainstem Susitna River. The lower river cross section (LRX) 29 site adjacent to Slough 8A was selected to supplement continuous surface water temperatures which have been monitored since the fall of 1"981. The mainstem at Gold Creek continuous surface and intragravel water temperature site was selected to obtain intragravel temperatures at this site and to supplement historical surface water temperature data col- lected by USGS. 2.3 Results The mean daily intragravel and surface water temperatures collected at the 13 sites during the period of late August, 1982 through early June, 1983 are presented in Figures 2-2 through 2-12. Appendix A of this report is a tabulation of daily and monthly mean, minimum and maximum temperatures for surface and intragravel water temperatures recorded with data pods. These data indicate that the intragravel temperatures in sloughs are warmer and in some cases (e.g. Figures 2-6, 2-11 and 2-12) more stable than the surface water temperatures during the ice covered season. -7- co Figure 2-2. MOUTH SLOUGH SA ~-----------------------------------------------------------------------------------.~0 ~ 1 I .......... u 0 9 .....__,. (l) '- :J 7 0 '- (l) s 0. E (l) 3 f- -I t\ 1\ I \ DISCHARGE _,..J\) \\ ,\,1 -17:\ I _..,._\!Y INTRAGRAVEL I I SEP OCT 1982 SURFACE ~ATER ___ .,. ________ _ NOV DEC JAN FEB MAR APR MAY 1983 Datg @Discharge data nat available after October 19. @Surface and intragravel hmptrature are the tame. @ lntragravel probe nvered by Ice movement along bank. JUN L... u :3 e ..., 0 >( Q C'l ..... 0 ..c u 0 Mean daily intragravel and surface water temperatures, collected with a datapod recorder, at the mouth of Slough SA from August 21, 1982 through March 10, 1983, and provisional Susitna River discharge data from the USGS Gold Creek gage, 15292000 (USGS, 1982). (Tick marks along the horizontal axis refer to the first day in respective months.) ...-.... u 0 ......__.. ClJ 1.... ::J --0 1.... ClJ 0... E ~ Figure 2-3. I I 9 7 5 3 -t MIDDLE SLOUGH 8A DISCHARGE INTRAGRAVEL SURF ACE ~ATER- '• ,, I lo ·' ! •' I' ' 1 I I ~ • t @ SEP OCT NOV DEC JAN FEB MAR APR MAY JUN 1982 1983 DatQ @Discharge dolo not available otter October 19. @New sile installed 4/28/83,to replace Slough 8A mouth site.Site is located about 75 yards upstream of 8A mouth site. 48 Vl t.... u 30 ,.., 0 20 X Q) Ol 1.... 10 0 ..J: 0 VI 0 a Mean daily intragravel and surface water temperatures, collected with a datapod recorder, at the middle Slough SA site from April 29 through June 2, 1983 and provisional Susitna River discharge data from the USGS Gold Creek gage, 15292000 (USGS, 1982). (Tick marks along the horizontal axis refer to the first day in respective months.) ,_. 0 Figure 2-4. ....-.. u 0 ..._.. (I) \.... :;J ....._ 0 I... v 0. E Q) I- I I 9 7 5 3 -I MAINSTEM AT LRX 29 DISCHARGE ------ INTRAGRAVEL i\ 1\ I \ ./'J\~ \\ -...... 1 SURFACE \.JATER ® ------------- SEP OCT NOV DEC JAN FEB MAR APR MAY JUN 1982 1983 Dole ®Discharge dolo not ovoiloble after October 19. @Probe severed by ice movement along bank. © lnlrogrovel temperature affected by surface water. "10 ll) l... u 3~ I") 0 X 20 " Ol I.. 0 10 ..c u "' a 0 Mean daily intragravel and surface water temperatures, collected with a datapod recorder, at LRX 29 from October 31, 1982 through April 27, 1983 and provisional Susitna River discharge data from the USGS Gold Creek gage, 15292000 (USGS, 1982). (Tick marks along the horizontal axis refer to the first day in respective months.) ........_. u 0 .._... Cl.l \.... :J -0 \.... Cl.l a_ E ~ ...... ...... Figure 2-5. II 9 7 5 3 -I UPPER SLOUGH SA t1 1\ I J'J\) \\ DISCHARGE ------ INTRAGRAVEL --® SURFACE ~ATER ------------- I I ... ':... '', ,, '"I \.\ ""' ~@ ). I I \J ' ' ,,~ ,, .1'" ,, ©"'1 1 11 r' ~ '\ SEP OCT NOV 1982 DEC JAN FEB MAR 1983 APR MAY JUN Date ®Discharge dolo not ovoilable after October 19. @Probes severed by ice movement along bonk edge. ©New probes installed approximotely.30 yards upstream of old (Aug.-Nov.)site. 413 V') L.... u 3((} I") 0 213 >< ~ Ol L Ia 0 ...c:: u .... e 0 Mean daily intragravel and surface water temperatures, collected with a datapod recorder, at upper Slough SA from August 21, 1982 through April 27, 1983, and provisional Susitna River discharge data from the USGS Gold Creek gage, 15292000 (USGS, 1982). (Interruption of temperature data due to ice related damage of temperature probe. Tick marks along the horizontal axis refer to the first day in respective months.) ,..-.... u 0 '-"' il) \.. :J ...... 0 \.. il) 0. E ~ Figure 2-6. I I 9 7 5 3 -I • I I o \ ,, '•' ~ \'I II I '! u, I I' ''~\ SLOUGH 9 ~-~ I'-'' \W ' \ ,. ,-' 'I ''~~ ' ' ... ------- DISCHARGE ------ INTRAGRAVEL SURFACE WATER ------------- II II I' " -I' /' I Ill . JI'_j~ ---::v-1\[ - ,., II ,r '' .-' I I ..... ,, ,, t © SEP OCT 1982 NOV DEC JAN FEB MAR 1983 APR MAY JUN Dale @Discharge data not available after October 19. @Recorder Temporarily Lost in Deep Snow. ©Slough breached during breakup. 4El Vl L.... u 30 I'} 0 20 )( w Ol ..... IEl 0 ..c 0 C/1 e 0 Mean daily intragravel and surface water temperatures, collected with a datapod recorder, at Slough 9 from August 22, 1982 through April 28, 1983, and provisional Susitna River discharge data from the USGS Gold Creek gage, 15292000 (USGS, 1982 and 1983). (Tick marks along horizontal axis refer to the first day in respective months.) ,_.. w Figure 2-7. I I ...-... 0 0 9 ..._, (l) 1... :J 7 ..... 0 1... Q) 5 0. E Q.) 1-3 -I I ~ I I I I SEP OCT NOV 1982 SLOUGH II DISCHARGE INTRAGRAVEL SURFACE WATER t ® DEC JAN FEB MAR APR HAY 1983 DotG @Discharge dolo not available after October 19. JUN @April 29,1983 surface water probe found buried in I" or silt,when uncovered· temperature rose to true surface water temperature. -4B V) L.... u 39 I") 0 213 )( Ill Ol L.. IG 0 ..c 1,) V1 B 0 Mean daily intragravel and surface water temperatures, collected with a datapod recorder, at Slough 11 from August 21, 1982 through April 28, 1983, and provisional Susitna River discharge data from the USGS Gold Creek.gage, 15292000 (USGS, 1982}. (Tick marks along the horizontal axis refer to the first day in respective months.) Figure 2-8. I I ...-.-u 0 9 ....._,.. (l.J \... :J 7 --0 \... Q) 5 Q. E ~ 3 -I MAIN STEM AT GOLD CREEK DISCHARGE ------ INTRAGRAVEL /l 1\ I A. )' \ ./'} \ \\ .....__, SURFACE WATER ------------- ~t ® ~--~-------~---, _____ t @ SEP OCT NOV DEC JAN FEB MAR APR MAY JUN 1982 1983 Dale @Discharge dolo not available alter October 19. @ Probes severed from ice movement. 40 Vl !...... u 30 I') 0 20 >( u OJ ...... \0 a _c u VI 0 0 Mean daily intragravel and surface water temperatures, collected with a datapod recorder, in the mainstem Susitna River at Gold Creek from October 18, 1982 through January 30, 1983, and provisional Susitna River discharge data from the USGS Gold Creek gage, 15292000 (USGS, 1982). (Tick marks along the horizontal axis refer to the first day in respective months.) ....... U1 Figure 2-9. SLOUGHl68 ... a Vl L.... u 11 f\, I \ ./'J\) \\ ! I -... ~ ~ t u 0 9 ® '-../ DISCHARGE 33 I"') 0 2B X 1!1 Ol I.. 10 0 .c u .... 0 0 INTRAGRAVEL SURFACE WATER cv I... :J 7 ...... 0 I... Cll 5 Cl.. E ~ 3 -I SEP OCT NOV DEC JAN FEB MAR APR MAY JUN 1982 1983 Dale @Discharge dolo not available after October 19. Mea~ daily intragravel and surface water temperatures, collected with a datapod recorder, at Slough 16B from August 21, 1982 through January 4, 1983, and provisional Susitna River discharge data from the USGS Gold Creek gage, 15292000 (USGS, 1982). (Tick marks along the horizontal axis refer to the first day in respective months.) 1-' 0"1 Figure 2-10. SLOUGH 19 -10 Vl u... u I I t1 30 ,.., 1\ 0 20 )( jJ \\ DISCHARGE ll ------0'1 I.. INTRAGRAVEL 1 e 0 -..s:: u ...-1 Ill SURFACE WATER u 0 0 a -------------'-J 9 ® ~ 1... ::J ...... 0 1... C1l 7 1/1 ~ ,, Q. 5 . \ . \'I\ 1\ I I E ~ 3 -I II I~ I j V\j ,, - ~', ',,, ·~J',~ '1. '-I\ , __ ''·-® SEP OCT NOV DEC JAN FEB MAR APR MAY JUN 1982 1983 Dol:. a @Discharge dolo nof available after October 19. @ Equipment Ma I function Mean daily intragravel and surface water temperatures, collected with a datapod recorder, at Slough 19 from August 21, 1982 through April 27, 1983, and provisional Susitna River discharge data from the USGS Gold Creek gage, 15292000 (USGS, 1982). (Tick marks along the horizontal axis refer to the first day in respective months.) 1--' "'-.J F i g u re 2 -11. I I ...--.... u 0 9 ...._.. ~- :::> ..... 7 0 .._ Ill 5 Q. E ~ 3 -I SLOUGH 21 MOUTH I' 1\ I \ DISCHARGE _,.;\) . \'\ ------ INTRAGRAVEL -.... 1 SURFACE WATER ® ------------- [ ~~---·----------~-------___., ,,/f ' \ I 1'----t'r- '.,, • I I 1'1 V'\ I ~I I ~ ' l! II ' I 11'1 o11 1 1 ' I I 1 I I I I~ I ~ I I 1' I II 1111 1 I('/ 1 /1 o 1 'I I I II I • \' I \' I II I I I ,,1 I I I I .. I • 'I V I I t\ II I ! U J I • " \1 ' SEP OCT NOV 1982 ' ,J I \I """"I ., DEC JAN FEB MAR APR MAY 1983 Dol a @Discharge dolo not ovoiloble after October 19. @Slough breached in September. 40 Vl l4. u 30 ,., 0 20 X CD (]) \... 10 0 .r: 0 Ill 0 0 JUN Mean daily intragravel and surface water temperatures, collected with a datapod recorder, at the mouth of Slough 21 from September 17, 1982 through April 27, 1983, and provisional Susitna River discharge_ data from the USGS Gold Creek gage, 15292000 (USGS, 1982). (Tick marks along horizontal axis refer to the first day in respective months.) ....... OJ Figure 2-12. .--.... u 0 ..._, Cll I.... :J 0 I.... Cll 0... E Cll 1- UPPER SLOUGH 21 I I [1 1\ I DISCHARGE ..rJ\) \\ ------ -...--® INTRAGRAVEL ® SURFACE WATER 9 t ------------- • ' 7 ~ I 5 3 -I t © SEP OCT 1982 NOV DEC JAN FEB MAR APR MAY 1983 Dale ®Discharge dolo no! available afler October 19. @Slough breached in Seprember 1982. © Slough breached during breakup. 43 VJ L... u 30 I"') 0 20 )( <:l Ol \... 10 0 ..c u Ill 0 0 JUN Mean daily intragravel and surface water temperatures, collected with a datapod recorder, at upper Slough 21 from August 21, 1982 through April 27, 1983, and provisional Susitna River discharge data from the USGS Gold Creek gage, 15292000 (USGS, 1982). (Tick marks along horizontal axis refer to the first day in respective months.) After mid-April, the surface water temperatures are warmer than the intragravel water temperatures, but not as stable. Figure 2-7 shows that this stabilizing effect is occurring when the surface water probe was covered by only one inch of silt. In this case both probes recorded temperatures that were nearly the same, but when the one inch layer of s i 1 t was removed the surface water probe recorded the actua 1 surface water temperature which was several degrees warmer as expected for mid April temperature. ·The temperature plots for the mainstem sites, LRX 29 (Figure 2-4) and Susitna River at Gold Creek (Figure 2-8) illustrate that, at the depths measured, this warming and stabilizing effect is very weak or absent in mainstem intragravel water. The data indicates that the downwelling of surface water produces intragravel temperatures that are the same as surface water temperatures. When mainstem Susitna River water was diverted into Sloughs 9 and 21 due to ice jamming, surface and i ntragravel water temperature decreased drastically. These trends are shown in Figures 2-6 and 2-12. 2.4 Discussion Although intragravel water temperatures were generally warmer in winter than were surface water temperatures, the relationship between the two varied between sloughs. For example, at the mouth of Slough 21 (Figure 2-11) there was more variation in surface water temperatures than in the intragravel water temperatures. In contrast to the mouth of Slough 21, there was a close relationship between both the temperature and the pattern of variation in surface and intragravel water temperatures in -19- Upper Slough 8A (Figure 2-5) and Slough 19 (Figure 2-10). Reasons for differences in the relationship of surface to intragravel water tempera- ture in different sloughs may be related to the relative magnitude of, and the proximity of individual datapod probes to upwelling groundwater sources. Probes placed directly in a groundwater upwelling source would undoubtedly be less variable and show a weaker relationship to surface water temperatures than would intragravel temperatures obtained from a datapod located in an area with 1 ittle or no upwelling groundwater present. Main stem intragravel temperatures more closely resembled the rna i nstem surface temperatures with intragravel temperatures near zero during most of the winter. This difference between slough and mainstem intragravel temperatures may in part explain the limited use of the mainstem river by spawning salmon as compared to the relatively intensive use of sloughs by chum and sockeye sa 1 mon. Other factors such as substrate stability, water velocities, sediment deposition, may also be important contributing factors. Post project temperatures need to be evaluated to determine their effects on slough and mainstem intragravel water temperatures and potential effects on salmon spawning and incubation. The effect of surface water temperatures on intragravel temperatures during overtopping events is a topic that also needs to be more rigor- ously quantified. If cold water from the mainstem Susitna River over- tops the heads of sloughs, as occurred this year in sloughs 9 and 21 -20- (Figures 2-6 and 2-12), and alters the temperature of the intragravel water, it could lead to altered times for completion of hatching and emergence of alevins. -21- 3.0 SALMON INCUBATION AND EMERGENCE STUDIES ~Jhen an adult salmon selects a site for spawning, it is selecting an environment defined by a composite of physical, chemical, and hydraulic variables, each of which may influence the incubation process indepen- dently or in combination with other variables. Some primary physical variables known to influence incubation include temperature and dis- solved oxygen as well as the substrate size composition, permeability, and porosity (Reiser and Bjornn 1979; Stikini 1979). Additional factors such as channel gradient and configuration which affect water depth and velocities may also influence the incubating environment, depending upon the degree of exchange between surface water and i ntragrave 1 water (Reiser and Bjornn 1979). Temperature is a critical component in embryo incubation. From fer- tilization to the development of the eyed stage, salmon embryos require ambient temperatures greater than four degrees centigrade (Petersen et al. 1977). Temperatures below this point can cause high mortality (Combs and Burrows 1957). Once the eyed stage of development is reached, low temperature is not such a limiting factor, but it will still reduce the development rate (Velsen 1980). In contrast, high temperatures can increase development rates and alter the order of morphological events. This can result in smaller alevins being produced because differentiation and the increased metabolism at higher tempera- tures takes precedence over growth (Hayes 1949; Barns 1969). The upper temperature limit for incubation of salmon embryos is around 14 degrees centigrade (Reiser and Bjornn 1979). -22- Another important factor during the entire incubation period is dis- solved oxygen. Oxygen is most critical during hatching and for a short time thereafter (Cooper 1965). Low levels of dissolved oxygen can reduce growth and survival rates; surviving alevins may be reduced in size or abnormally developed (Silver et al. 1963). Optimal conditions for embryo development occurs at concentrations of dissolved oxygen near saturation. However there may be temporary reductions in dissolved oxygen, but to a level no lower than five mg/1, for best survival rates (Reiser and Bjornn 1979). The interchange of surface and intragravel water is important in con- ducting dissolved oxygen to salmon embryos and alevins (Vaux 1962; Sheridan 1968; Reiser and Bjornn 1979). Fluctuation in flow may cause silt and stream sediment to be deposited over redds. Sediment deposited over incubating salon eggs inhibits the exchange of oxygen-carrying surface water with intragravel water and lowers survival rates of embryos and alevins (Cooper 1965; Reiser and Bjornn 1979). An increase in water temperature also increases the amount of oxygen consumed. Thus, the factors affecting survival of developing embryos and newly hatched alevins to time of emergence are often interrelated (Alderdice et al. 1958). The incubation environment is influenced by both surface and intragravel conditions with the relative influence of either set of variables being dependent upon the degree of exchange of water between them. Factors which control the exchange of water include stream surface profile, gravel permeability, gravel bed depth, and irregularity of the streambed surface (Vaux 1962). -23- Because of the int~rrelationships of many physical and chemical vari- ables, construction of the Susitna hydroelectric dams may impact spawning, incubation, and overwintering environments of fish indigenous to the Susitna River drainage. Hydrological changes which are expected to occur in the Chulitna River confluence to Devil Canyon reach of the Susitna River include decreased and stabilized flows during the open water periods, increased flows in the winter, al')d a rna rked change in seasonal water temperatures (Acres 1982). These alterations could affect sand bar formation, sed·imentation layering in sloughs and side channels, and water levels in existing sloughs. Such alterations could potentially change the characteristics of spawning and/or incubation sites (Cooper 1965; Baxter and Glaude 1980). In addition, changes in micro-habitat such as lower or higher intragravel temperatures and changes in the concentration of dissolved gases during this incubation life stage could affect development rates (Combs 1965; Childerhose and Trim 1979; Baxter and Glaude 1980; Heming 1982), the amount of time required for completion of incubation of salmon embryos (Velson 1980), and the timing of emergence (Burgner 1958). An evaluation of positive or negative effects of the altered physical characteristics mentioned above will not be possible until the direction and magnitude of post project effects on temperature and ice conditions have been defined for each habitat type. Because of these and other potential impacts on the survival of the upper Susitna River salmon stocks in their early life stages, incubation conditions were studied at spawning sites in selected sloughs and side channels of the Susitna River above the Chulitna River confluence -24- (Figure 3-1). Chum and sockeye salmon are the primary users of sloughs for spawning (ADF&G 1983a). Chum salmon are reported to actively select upwelling areas for spawning (Kogl 1965; Bakkala 1970). The 1981-82 winter studies provided preliminary data on the emergence time of chum salmon and sockeye salmon. A more detailed study was implemented during the 1982-83 winter program to address the following objectives. 3.1 Objectives 1) l~easure ·intragravel and surface water temperature, dissolved oxygen, pH, and specific conductance at chum and sockeye salmon spawning areas and in upwelling areas of sloughs where chum salmon spawned in 1982 (ADF&G 1983a). 2) Determine the timing of embryonic development and emergence under natural conditions for chum and sockeye salmon. In a related project, the U.S. Fish and Wildlife Service (USFWS) con- ducted a related study in a laboratory environment to document rates and stages of development of chum and sockeye salmon embryos at four differ- ent temperature regimes (Wangaard and Burger 1983). The eggs used in the USFWS laboratory study were collected from Slough 11 (RM 135.3). 3.2 Methods Environmental variables (i.e. surface and intragravel water temperature, dissolved oxygen, pH, and specific conductance) were monitored at -25- . 'Q ..... "'.o Talk<Uifna R. Figure 3-1. The location of seven incubation and emergence study sites along the Susitna River between the Chulitna River confluence and Devil Canyon, August, 1982 through Apri 1, 1983. -26- severa 1 spawning sites. Salmon incubation and emergence studies were conducted at these sites and three others. Analysis of the habitat data with regard to incubation rates was restricted to thermal effects. 3.2.1 Study sites Sampling sites for incubation and emergence studies were selected during September, 1982, utilizing the following criteria: 1) documented salmon spawning; 2) site accessibility during the winter survey period; 3) water depth shallow enough for good visibility and for ease of sample collection; 4) areas where open water was present during past winters. Sites included sloughs 8A (RM 125.3), 9 (RM 129.2), 11 (RM 135.3), 20 (RM 140.1), and 21 (RM 142.0), and mainstem side channels A (RM 136.2) and 8 (RM 137.3) (Figures 3-2 to 3-8). Indian River (RM 138.6) was sampled once during the fall, but ice formation and re-channeling prevented further sampling. Four of.these sloughs (8A, 9, 11, and 21) have been heavily utilized by spawning chum and/or sockeye salmon during the last two years. -27- I N CP I SLOUGH BA 0 2000 FEET RAILROAD [Q]-DATAPOD SITE fa· SALMON EGG COllECTION SITE --STANDPIPE lOCATIONS Figure 3-2. Incubation and emergence study site at Slough SA (RM 125.3). N 0.0 Figure 3-3. EB RM 129 RAILROAD B Incubation and emergence study sites at Slough 9 (RM 128.3). SITEC SLOUGH 9 0 1000 FEET [QJ DATAPOD SITE ~ SALMON EGG COLLECTION SITE -STANDPIPE LOCATIONS I w 0 I SITE B RAILROAD Figure 3-4. Incubation and emergence study sites at Slough 11 (RM 135.3). SLOUGH II 0 1000 FEET (APPROX. SCALE!. IQ] DATAPOD SITE fWJ SALMON EGG COLLECTION SITES -.STANDPIPE LOCATIONS I w I-' I MAINSTEM SIDE CHANNEL A 0 1000 FEET (APPROX. SCALf) WJ SALMON EGG WJ COlLECTION SITE EB R M 136 Figure 3-5. Incubation and emergence study site at Mainstem Side Channel A (RM 136.2). I w N I MAINSTEM SIDE CHANNEL B 0 FEET (APPROX. SCALE) 1000 &:f SALMON EGG COLLECTION SITE Figuer 3-6. Incubation and emergence study site at Mainstem Side Channel B (RM 137.3). I w w I RM 140 SLOUGH 20 0 1000 m SALMON EGG COLLECTION SITE ........ ...,... ___ SUS/TNA RIVEN-- WATER FALL CREEK Figure 3-7. Incubation and emergence study sites at Slough 20 (RM 140.1). ffi RM 142 Rl V £ R SITE A Figure 3-8. Incubation and emergence study site at Slough 21 (RM 142.0). FElT (APPAOX. SCALE) 1000 [Q] DATAPOD SITES ~SALMON EGG COLLECTION SITES •STANDPIPE LOCATIONS Standpipes were installed in these same four sloughs to allow sampling of the intragravel environment. Standpipe locations were selected to compare intragravel water quality conditions among study sloughs and between left and right banks within study sloughs. Because the origin of the water upwelling along respective banks of sloughs is presently unknown, standpipes were placed in narrow strips (5.0 feet wide) along the banks of each slough to test for water quality differences between the respective banks. Differences in water quality between banks was assumed to represent differences in water sources. Placement of standpipes in this manner allowed data collected to be used to describe fish spawning habitat and to test for differences in water quality between banks. All of the sloughs in which standpipes were placed are located on the right bank (facing upstream) of the mainstem Susitna River. The criteria used to select each sampling location within a slough included those listed on page 27, with the following additions: at least one sampling location per slough was located in a pool habitat where fish had spawned during the fall of 1982, and where upwelling groundwater was known to occur. G~nera lly, these areas were totally free of ice or contained localized patches of open water (Plate 3-1). If upwelling groundwater occurred along both banks of a slough at a single spawning area, a sampling location was established along each bank. If upwelling groundwater did not occur a 1 ong both banks of a slough at a single spawning area. but was only present along one bank (as in Slough 9, site B), a sampling location was established in the nearest suitable location on the opposite bank where upwelling occurred. -35- I ~ ~ I Plate 3-1. Upwelling area in slough. Opening in ice cover indicates higher temperature of upwelling water. In March of 1983, 10 standpipes were placed in each of the two sampling locations (one sampling location on each bank) in sloughs 8A, 9, 11, and 21 (Figures 3-2, 3-3, 3-4, and 3-5, respectively). Additional stand- pipes were later placed in sloughs 11 and 98. (For purposes of this study, Slough 9B is considered to be a part of Slough 9). Each sampling site was a rectangular area 50 to 100 feet in length (measured along the slough bank) and five feet in width (measured from the water's edge at time of sampling). Pipes were installed at random locations within each designated sampling site, provided that the water depth was within the range of 0.2 -1.8 ft. 3.2.2 Sampling techniques for habitat measurements 3.2.2.1 Water Temperature Continuous intragravel and surface water temperatures were recorded in various Susitna River sloughs from August, 1982 through May, 1983. Locations of the recording instruments and methods are described in Section 2.0. 3.2.2.2 Standpipes Standpipes were used to sample the intragravel environment during two sampling periods in the spring of 1983; the first period was April 15-18, and the second period was April 29 -May 2. -37- Standpipe design and installation ~1easurements of dissolved oxygen, temperature, specific conductance and pH were made inside and outside of plastic polyvinyl chloride (PVC) standpipes that were driven into the streambeds (Plate 3-2). Standpipes were driven into the substrate to a uniform depth using a driving rod and sledge hammer (Plate 3-3). The driving rods and standpipes used in this study were modified from previous designs (Gangmark and Bakkala 1959; McNeil 1962). The standpipes had the advantages of being rela- tively inexpensive and easy to install (Figures 3-9 and 3-10). The inside diameter of each standpipe was 1.5 inches {3.8 em) and contained 48 holes (1/8-inch-diameter; 0.3 em) that were evenly spaced in four bands (12 holes per band). The four bands were spaced one inch (2.5 em) apart with the lowest band being placed three inches (7.6 em) from the bottom of the standpipe. Each standpipe was driven into the substrate to a maximum depth of 14.5 inches {36.8 em), centering the (bands of) holes ten inches (25.4 em) into the substrate. This depth was selected because ten inches (25 em) is the estimated mean depth at .which chum (Kogl 1965; Merritt and Raymond 1982; Kent Roth pers. comm.) and sockeye salmon (Cooper 1965; Olsen 1968) place their eggs. After standpipes were properly installed, a cork/weight assembly was placed inside each standpipe to aid in removal of ice plugs formed during freezing weather conditions (Figure 3-10). This assembly con- sisted of a weight and cork that was attached by a nylon cord to a cap -38- I ~ UJ I Plate 3-l. Standpipe (with 48 one-eighth inch holes) used for monitoring intragravel water quali~ and driver used for installation. Plate 3-3. Installation of standpipes for monitoring of intragravel water quality in Slough 11. -40- 41" I' STEEL DRIVER I 2 I r 1 "]-· I HEAD: I ..... : I I I l I ""'....-t------STEEL OR IVER I SHAFT: I l l I.._ _____ PVC STANDPIPE: I I l I I I 1 I I I I I I I I I I I I 1 l I I [ I I I r-,- i -4 -I STEEL DRIVER TIP: GROOVES: Reduces suction upon withdraw I of driver. Bears impoc:t during installation of standpipe. 1 a. 2.0 "diameter b. 0.5 II thick za. 1.5"diameter b. 3. 0 II t h i C k 1.0 11 diameter steel Being driven into substrate. 1.5" inside diameter 38.0" length Bears impact during installation of standpipe. 1.5 11 diameter 3.0" length Figure 3-9. Scaled drawing of the steel driver used by ADF&G to install po1yvinyl chloride (PVC) standpipes into gravel substrates. 41 Figure 3-10. (!) z -a:: t- Il> ----pvc CAP: CORK I WEIGHT ASSEMBLY: Prevents debris and Sf)OW from entering p1 pe. A ids in removal of ice plugs and reduces the surface area at the air I water interface. Estimated mean depth of chum and sockeye sa I mon embryos . ..:..----PERFORATIONS: Allows inflow of intragravel water. I. Total of 48 holes ( 1/8 "diameter). 2.Four rings (12 holes each) of holes spaced !"apart. A II ow s for set t I in g if fine materials a r e present. Diagram of a polyvinyl chloride (PVC) standpipe installed by ADF&G in substrate. 42 which covered the exposed end of the pipe. The cork floated at the air/water interface and reduced the amount of surface area available for oxygen transfer. It also served to station the weight in a position that caused it to be frozen in the ice plug. Ice plugs were removed by gently heating the exterior of the PVC pipe at the water surface with a propane torch while exerting upward pressure on the pipe cap. After a few minutes of heating the cork/weight assembly and attached ice plug was easily withdrawn. Procedures for the measurement of water quality Following the initial installation of standpipes, sampling was delayed for a minimum of 24 hours. This allowed substrate materials to resettle. Following the resettling period, sampling at each standpipe was conducted after the interior of the standpipe was pumped out using a hand-diaphragm pump (manufactured by PAK of JABSCO; Springfield, Ohio 45501; model 45800-000) to remove fine sediments that settled inside the standpipe. This procedure ensured that the water that refilled the standpipes was from a fresh intragravel water source and that the water samples could be obtained at the desired depth in all standpipes. After water refilled the standpipes and a minimum of one hour had elapsed, measurements of temperature, dissolved oxygen (DO), specific conductance and pH were obtained within each standpipe. In addition, corresponding measurements were obtained approximately halfway between the substrate and water surface beside each standpipe. The minimal elapse time (one hour after pumping standpipes) was allowed to ensure -43- that all standpipes refilled to their original level. Prel-iminary tests indicated that there were no differences between concentrations of DO collected inside standpipes before pumping and after one, two, and four hours after pumping. The fa 11 owing procedures were used to obtain measurements of water temperature, DO, specific conductance, and pH. Temperature Temperature measurements in stand pi pes were obtai ned with the Ye 11 ow Springs Instrument (YSI) model 57 dissolved oxygen/temperature meter according to procedures presented in the manufacturer's operations manual. Dissolved oxygen Dissolved oxygen measurements were obtained using a YSI model 57 dis- solved oxygen/temperature meter. The meter was calibrated following the procedure described in the procedures manual (ADF&G 1983e). After the meter was calibrated, measurements were collected by lowering the probe inside the standpipe to the desired depth (10.0 inches; 25.0 em). After lowering to the proper depth the probe was gently agitated to ensure circulation of water over the membrane and measurements were recorded when the meter indicator stabilized. -44- Specific conductance Specific conductance was measured with a YSI model 33 S-C-T meter according to procedures presented in the manufacturer 1 S operations manual. Because factory calibration of this meter was not always reliable or possible prior to field use, a calibration curve was de- veloped over the full range of values expected to be encountered during measurement. The calibration curve was developed by comparing specific conductance values obtained with the YSI meter to those obtained with a cal·ibrated Hydrolab meter~ model 4041. All values· measured in the field were later adjusted on the basis of the calibration curve. Because readings obtained with the YSI meter are not temperature-compen- sated to 25°C~ all readings were temperature-compensated to 25°C using procedures presented in Standard Methods (APHA 1980). Specific conductance data were used to compare water quality between sloughs and between left and right banks within sloughs. Specific conductance was selected for this purpose because it is generally regarded as an index to total concentration of dissolved ionic matter, which in turn is related to water fertility (lind 1974). Therefore, it is useful to detect water originating from different sources. In addition, this variable had a much larger range in variation than other variables measured and therefore was expected to be more sensitive to differences in water quality between locations. A two-way analysis of variance (ANOVA) was performed on specific conductance data using a statistical program provided by the Statistical Package for Social -45- Sciences (SPSS) (Nie et al. 1975; Hull and Nie 1981). Data collected at different sampling sites within a given slough were merged. Only data obtained from intragravel water was used because the pr·imary interest was to eva 1 uate water sources. Only data from the second sampling period (April 29 -May 2) was used because it was the most complete. Measurements of pH were obtained at a substrate depth of 10.0 inches with a YSI model 5985-40 pH meter. Standard procedures presented in the manufacturers operations manual were used. The meter was calibrated prior to use using buffer standards of pH 4.0 and 7.0. 3.2.3 Sampling techniques for embryo development study Egg sampling was conducted once per month, from September, 1982, through ~ May, 1983. A Hamel ite gas-powered water pump mounted on a backpack frame was modified into an egg pump for sampling the redd sites (Plate 3-4). The egg pump employs a high pressure jet of water created by forcing water through a constriction and venturi in the pump output hose. The water jet is directed through a three feet long section of H 11 PVC pipe which is used to probe the redds. The jet of water serves to dislodge the substrate ahead of the probe allowing the PVC pipe to be pushed downward into the redds while forcing some of the salmon eggs or alevins present to the surface. A two feet high cylindrical screen, two feet in diameter and open at both ends, with an attached 1/4 inch mesh catch sack was placed over the area to be sampled with the catch sack -46- Plate 3-4. Egg pumping for chum and sockeye salmon eggs during the winter studies at Slough 21 (RM 142.0). trailing down stream. As eggs were pumped to the surface within the cylinder, the current carried them into the catch sack where they could be retrieved. A shovel was used in addition to the egg pump to collect samples at some sites. Samples were preserved in five percent formalin for later visual determination of developmental stages through use of a dissecting scope. Intragravel and surface water temperatures were also measured at salmon redds, beginning in December, using a YSI 400 series semi-solid insertion probe (3.0 feet in length) attached to a hand-held Digi-Sense thermometer which enab 1 es a temperature measurement at the precise location of the tip of the probe. Each intragravel temperature was obtained by inserting the probe tip approximately six inches into the substrate (at the point where embryos were sampled) and noting the displayed temperature. Three to five readings were taken and the mean reading recorded. 3. 3 Results 3.3.1 Habitat data Continuous surface and intragravel temperature data from the Oatapod recorders were presented in Section 2. The strength of the various relationships are undoubtedly influenced by the magnitude of water exchange between the surface and intragravel environments. This in turn is influenced by the relative amount of -48- downwelling or upwelling at the specific sampling sites. For the purposes of this report, it is sufficient to note that the two water sources are related to varying degrees, and that the placement of standpipes in future studies should take this into account. 3.3.1.1 Temperature In each of the four sloughs, mean intragravel temperatures collected in standpipes during both sampling periods, (first sampling period was April 15-18 and second sampling period was April 29 -May 2) were consistently lower than means of surface water. For combined data from the four sloughs and both sampling periods (Appendix Table B-4), mean values for intragravel waters ranged from a low of 1.8°C (first period; Slough BA) to a high of 4.7°C (second period; Slough 11). Corresponding surface water temperatures were higher, ranging from a low of 0.5°C (first period; Slough BA) to a high of 7.8°C (second period; Slough 11). This relationship is inverse to the general winter trend of intragravel water temperatures during the ice-covered season (refer to page 21). Surface water was warmer than intragravel water because these data were collected. during late April and early May when surface water temperatures were beginning to increase due to solar warming, see Figures 2-2 through 2-14 for graphic illustrations of this. Relatively large differences between early and late sampling periods for both surface and intragravel water are undoubtedly related to the vari- able environmental conditions at the time these data were collected. -49- Spring thaw conditions were beginning during the first period and were well advanced during the second sampling period. The ranges of intragravel temperatures are generally greater than the ranges of surface water temperatures (Figures 3-11 and 3-12). Summaries of the mean water temperature data for the two sampling periods are presented in Figures 3-11 and 3-12. There appears to be no consistent relationship between the mean temperatures obtained at left bank sites compared to right bank sites. In some instances means for right bank sites were higher (e.g. Figure 3-12; Slough 21) and in other sloughs the reverse was true (e.g. Figure 3-12; Slough SA). However, with the exception of Slough 11 during the second sampling period (Figure 3-12) the relative positions (higher or lower) of mean tempera- tures for both banks within a given slough remained the same for both intragravel and surface waters and between sampling periods. Intragravel water temperatures encountered in the study sloughs ranged from 0.4°C to 7 .2°C with mean intragravel temperatures ranging from 2.0°C to 4.3°C (Appendix Table B-4). These mean values are similar to those reported by Kegl (1965) for chum salmon in the Chena River system and are within the temperature tolerance ranges reported in AEIDC (1983). 3.3.1.2 Dissolved oxygen In each of the four sloughs, mean concentrations of intragravel dis- solved oxygen (DO) collected within a given sampling period were consis- -50- -1 11.1 > <( 0:: (!) <( 0:: ~ z LIJ (.) <( tL 0:: ;:) (I) 6 -5 (.) 0 -• 4 ... =-0 3 ... • ~ 2 E • ~ I 0 6 • 4 ... :3 -10 3 ... • ~ E • ~ I WATER TEMPERATURE (APRIL 15-18,1983) I I L R Slou;h SA (SITE A) I L R Slou;h SA (SITE A) I I L R SlouQh 9 (SITES A a B) I 1: L R Slou;h 9 (SITES A a B) J: I L R Slou;h It (SITE B) -I L R Slough II (SITE B) I I L R Slou;h 21 (SITE A) - L R S Iough 21 {SITE A} Fiqure 3-ll. Summary ~mean and range; n=10) of intragravel and corresponding surface water temperature data collected along left (L) and right (R) barks (looking upstream) of sloughs 8A, 9, 11 and 21, Susitna River, Alaska, spring {April 15-18), 1983. -51- 6 - 5 ..Jo LIJ 0 >-4 ct ~ a: ~ (!) -3 ct 2 a: • ~ Q. 2 z E LIJ (.) ct I&. a: ::> en CD 1- - 0 -CD .. ~ -a .. • Q. E • 1- 5 WATER TEMPERATURE (APRIL 29-MAY, 1983) I L R Slough SA (SITE A) I L R Slough 9 (SITESAaB) ! I L R L R Slough SA Slough 9 (SITE A) (SITES A a B) I I L R Slough II (SITE B) :r I L R Slough II (SITE B) I I L R Slough 21 (SITE A) I L R s Iough 21 · (SITE A) Figure 3-12. Summary (mean and range) of intragravel and corre- sponding surface water temperature data collected along left (L) and right (R) banks (looking upstream) of sloughs 8/l., 9, 11 and 21, Susitna River, Alaska, spring (April 29-May 2), 1983. ( n=10 for each mean except for Slaugh 21, left bank, where n=9). -52- tently lower than mean concentrations for surface water (Appendix Table B-4). Considering all sloughs for both sampling periods, DO concentrations in surface waters in each slough ranged from a low of 9.1 mg/1 (April 15-18 period; Slough 21) to a high of 11.2 mg/1 (April 29 - May 2 period; Slough 8A). Means for intragravel measurements ranged from a low of 4.6 mg/1 {first and second periods; Slough SA) to a high of 8.5 mg/1 (first period; Slough 11). In each case, the difference in mean DO concentrations between the first and second periods was much less than the difference between means for intragravel and surface waters during each period. These trends are summarized in Figures 3-13 and 3-14 for the first and second sampling periods, respectively. In Figures 3-13 and 3-14, DO levels are shown for left and right banks within each slough. With the exception of Slough 9 (refer to Figure 3-14) mean values for intragravel water collected along the right bank, were consistently higher than those collected along the left bank. Mean concentrations of DO for surface water were nearly the same between all sloughs and between sampling periods {Figures 3-13 and 3-14). In contrast, mean intragravel water DO concentrations were variable between sloughs, being lowest in Slough 8A and highest in Slough 11. Intra- gravel DO concentrations were also more variable at a given location than those of the corresponding surface water. Intragravel DO levels in sloughs 9 (left bank) and 21 appear to be adequate for successful incubation of salmonids according to the threshold of 6.0 mg/1 recom- mended by McNeil and Bailey (1975) for artificial incubation conditions. -53- -15 ...... 0 -J E -LLI C I > ., ct 0 > Q: )( (!) 0 <t "0 Q: ., 5 .... > z 0 Cl) fiD 0 0 -15 ...... 0 e -c LLI CD 10 (.) 0 Lf ~ a::O ~., en ., 5 > i .!! 0 DISSOLVED OXYGEN (APRIL 15 -18, 1983) I I L R Slough SA (SITE~) I I L R Slough SA (SITE A) I I L R Slough 9 (SITES A8B) I I. L R Slough 9 (SITES A a B) I I L R Slough II (SITE B) I I L R Slough II (SITE B) l: I L R Slough 21 (SITE A) I L R Slough 21 (SITE A) Figure 3-13. Summary (mean and range; n=lO) of intragravel and corresponding surface water dissolved oxygen data collected along left (L) and right (R) banks (looking upstream) of sloughs 8A, 9, 11 and 21, Susitna River, Alaska, spr1ng (April 15-18), 1983. -54- -15 ...... 0 .J E ~~.~-> c 10 <( & a:: > (!) " <(0 0::: .... ., 5 z~ 0 • • c 0 -...... 0 E -c L&J G) 0 (J > ~ )( 0 0:: ::> 'a (I) • > 0 • • c I I L R DISSOLVED OXYGEN (APRIL 29-MAY 2, 1983) I I I I L R L R I I L R Slough SA Slough 9 Slough II Slough 21 {SITE A) (SITES A a B) I l: -:!:: l R L R Slough SA Slough 9 .(SITE A) (SITES A a B) (SITE B) X 1: L R Slouoh 11 (SITE B) (SITE A) X I L R Slough 21 (SITE A) Figure 3-14. Summary (mean and rar.ge) of intragravel and corre- sponding surface water dissolved oxygen data collected along left (L) and right (R) banks (looking upstream) of sloughs 8A, 9, 11 and 21, Susitna River, A.laska, spring (April 29-t~ay 2), 1983. (n=lO for each mean except for Slough 21, left bank, where n=9). -55- However,_ DO concentrations in Slough SA and at the right bank site in Slough 9 were below this recommended level. 3.3.1.3 Eli Values of pH ranging from 6.0 to 8.0 are common for natural waters and are within acceptable limits for salmonid incubation (McNeil and Bailey 1975). However, pH values lower than 6.0 or higher than 8.0 may not necessarily be unsuitable, but are more likely to contain harmful heavy metal contaminants. All recorded pH values in this study ranged between 6.2 and 7.3 (Appendix Table B-4) and are therefore within acceptable limits for successful salmonid incubation. 3.3.1.4 Specific Conductance Complete data sets for the two sampling periods were not possible due to meter malfunction. However, from the available data base for three sloughs, the following patterns emerged. Mean values of specific conductance for sloughs (Appendix Table B-4) ranged from a low of 160 umhos/cm (April 15-18 period; Slough 9) to a high of 270 umhos/cm (April 29 -May 2 period; Slough 11). There did not appear to be a consistent relationship between mean values of intragravel and surface water samples. For both sampling periods in sloughs 8A and 9 and the first sampling period in Slough 11, means for specific conductance were lower for surface water samples than for intragravel samples. However, the reverse was true for the second sampling period in Slough 11 and for -56- both periods in Slough 21. There was a consistent pattern between means of left and right banks {Figure 3-15) with right bank means being consistently lower than left bank means. This was true for both surface and intragravel samples. Specific conductance data were used to compare water quality between sloughs and between left and right banks within sloughs. Specifically, the following hypotheses were tested . . 1. Null hypothesis (H 0 ): Specific conductance values are the same for all given sloughs/banks (i.e. interaction effects are not significant). Alternate hypothesis (Ha): Not equal. 2. H0 : Specific conductance values are the same in sloughs 8A, 9, 11 and 21; while controlling for bank effects. 3. Ha: Not equa 1. H · Specific conductance values are the same at left and right a· bank sites of sloughs; while controlling for slough effects. Ha: Not equal Table 3-1 is a summary of a two-way analysis of variance testing the above hypotheses. There were significant difference at the p 0.001 -57- 300 E (,) ....... 250 • 0 .s= E ...J ~ IIJ 20 > .. (,) C( c: a:: 0 (!) -150 (,) C( ~ a:: "0 ~ c: 0 z () (,) -u • Q. 50 (/) 300 E (,) ....... • 250 0 .s= E ~ • 20 IIJ (,) c: 0 0 C( -(,) IL :::1 I !SO a:: "0 ;::::) c: 0 (f) 0 (,) 100 -(,) • Q. (f) 50 Figure 3-15. SPECIFIC CONDUCTANCE (APRIL 29-MAY2,l983) I I I I I I I 1 l L R L R L R L R Sloufilh 8A Slough 9 Slough II Slough.21 (SITE A) (SITESA,BSC)(SITES ASC) (SITE A) I I I I l I l I L R L R L R L R S loufilh SA Slouoh 9 Slouoh 11 Slough 21 (SITE A) (SITES A,B SC)(SITES ASC) (SITE A) Summary (mean and range) of intragravel and corresponding surface specific conductance data collected along left (L) and right (R) banks (looking upstream) of sloughs SA, 9, 11 and 21, Susitna River, Alaska, spring (April 29 -May 2), 1983. (n=lO for each mean except for Slough 9, left bank, where n=l3; Slough ll, right bank, where n=4; and Slough 21, left bank, where n=9). 58 I c..n 1.0 I Table 3-1. Summary of two-way analysis of variance (ANOVA) on specific conductance data obtained inside standpipes located along left and right banks of sloughs SA, 9, 11 and 21, Susitna River Alaska, April 29-May 2, 1983. Source of Variation Sum of Squares Degrees of Freedom Mean Square F Significance of F Model 85394.4 7 12199.2 52.47 0.001 Main Effects 74214.6 4 18553.6 79.79 0.001 Bank 35757.1 35757.1 153.77 0.001 Slough 38968.7 3 12989.6 55.86 0.001 Interactions Bank X Slough 11179.8 3 3726.6 16.03 0.001 Residual 15812.1 68 232.5 Total 101201.4 75 level for main effects, bank, slough and interaction effects. There- fore, the null hypotheses of equality are rejected. This suggests that there was more than one source of water contributing to intragravel water in sloughs. However, the significant difference for the inter- action effect indicates that the individual effects of slough and bank are not independent. These differences are shown in Table 3-2. The magnitude of the bank effect depends upon which slough is considered. For example, the difference between mean specific conductance values of left and right banks in Slough 8A is very slight compared to the dif- ference in Slough 9. Thus, it is not possible to make simple statements regarding the effects of either factor (slough or bank) vtithout con- sidering the effects of the other. It is noteworthy that means for specific conductance are consistently higher at left bank sites in each I slough than at right bank sites. (Table 3-2). This pattern is likely to be related to different hydraulic relationships governing the drain- age patterns of water into the left (Susitna River side) and right (mountainous side) side of sloughs. 3.3.2 Development and emergence data Peak spawning for chum and sockeye salmon occurred in late August and early September of 1982 (ADF&G 1983a). The embryonic developmental stages following this spawning period consists of three phases: cleav- age, gastrulation, and organogenesis. The cleavage phase begins after fertilization and ends with the proliferation of cells. In the gas- trulation phase, the cells develop into tissues to produce the basic -60- Table 3-2. Slough Bank Left Right I O'l 1-' Left + Right I Mean Difference Summary of mean specific conductance values obtained inside standpipes in sloughs 8A, 9, 11 and 21, Susitna River Alaska, April 29 -May 2, 1983. Means for specific conductance (umhos/cm) in sloughs 8ii 9 11 21 254 223 260 242 (N=1 0) (N=13) (N=10) (N=9) (Site A) (Sites B and C) (Site A) (Site A) 246 156 191 201 (N=10) (N=10) (N=4) (N=10) (Site A) (Site A) (Site C) (Site A) 250 194 240 221 8 67 69 41 (N=20) (N=23) (N=14) (N=19) Total 243 (N=42) 200 (N=34) 224 43 (N=76) structure of the embryo. Organogenesis is characterized by the appear- ance of fins and formation of the internal organs and circulatory system. The eyed stage develops during the early portion of the organo- genesis phase. Hatching occurs about two weeks after organogenesis is completed. These phases are described in detail by Velsen (1980). In this report, post-hatching stages of embryonic development are evaluated in terms of percent yolk sac absorption and time of emergence. Plate 3-5 shows .several stages of salmon development from the beginning of fertilization to just before emergence. Temperatures recorded within the redds by the intragravel probes are listed in Table 3-3. 3.3.2.1 Chum salmon Table 3-4 contains the development and emergence data for chum salmon on the Susitna River between the Chulitna River confluence and Devil Canyon. The data for three of the sloughs are also presented graphi- cally in Figure 3-16. Chum salmon egg fertilization occurred in late August and early September at all sampling sites. Chum embryos were developing from the cleavage phase into the early gastrulation stage through September. By November, eggs co 11 ected at a 11 sites except Slough 20 were we 11 into organogenesis and had reached the eyed stage. The embryos in Slough 20 at this time were just beginning early organo- genesis. Eyes were not noticeable in chum salmon embryos at Slough 20 until mid December. -62- (1) Fertilized egg ·(2) "Eyed11 e~g (3) Newly hatched alevin 0% yolk sac absorption Aleviri 90% yol~ sac absorption Buttoned up alevin 100% yolk sac absorption Plate 3-5. Stages of salmon egg and alevin development from beginning of fertilization to just before emergence. F -63- I m .j:::. I Table 3-3. Mean temperatures (°C) recorded within chum and sockeye salmon redds by intragravel probe and thermometer from December, 1982 through April, 1983. Mainstem Mainstem Date Slough SA Slough 9 Slough 11 Sfdechannel A Sidechannel B Slough 20 Chum Redds December 16-21 3.0 3.1 0.3 January 26 3.1 February 22-23 2.0 1.9 2.1 March 24 0.9 2.4 2.4 April 20-21 1.1 3.1 3.4 3.0 2.7 Socke;te Redds December 16-18 3,2 3.1 0.3 January 26 3.1 February 22-23 1 .9 March 24 0.1 2.0 April 20-21 4.4 2.9 Slough 21 2.0 2.1 2.2 2.5 2.0 2.2 2.6 2.5 I 0'1 Ul I Table 3-4. Development and emergence data for chum salmon on the Susitna River between the Chulitna River confluence and Devil Canyon, August 1982 to April 1983. N = number of embryos or alevins examined. Sloughs & Mainstem Side Channels Slough Slough Slough Sidechannel Sidechannel Slough Slough Sameling Date SA 9 11 A B 20 21 August Adults Adults Adults 1982 Spawning Spawning Spawning September 6-7, Adults Adults Adults N = 3 N = 5 N = 5 N = 10 1982 Spawning Spawning Spawning 100% end of !00% early 10096 100% end of cleavage gastrulation gastrulation cleavage October 22, N = 9 N = 18 1982 100% 100% early final stage Organogenesis gastrulation November 17-18, N = 33 N = 12 N = 9 N = 2 N = 4 1982 100% 100% 100% 100% early 100% Organogenesis Organogenesis Organogenesis Organogenesis Organogenesis Eyed Eyed Eyed All Eyed December 16-21, N = 4 N = 3 N = 10 N = 11 1982 100% 100% 100% 100% Late Final Stage Organogenesis Organogenesis Organogenesis Organogenesis Eyed Eyed January 26-30, N = 5 N = 15 N = 12 1983 100% Late 100% Close 5096 Late Organogenesis to hatching Organogenesis 50% hatched zero% Yolk Sac Absor. February 21-23, N = 35 N = 14 N = 10 N = 37 1983 94% at 25% 10096 at 25% 10096 at 22% at Yolk Sac Yolk Sac 1096 Vol k Sac 25% Yolk Sac Absorption Absorption Absorption Absorption 6% Late 78% at 10% Organogenesis Yolk Sac Absorption -no data Table 3-4 (Continued) Sloughs & Mainstem Side Channels 51 ough Slough Slough Sidechannel Sidechannel Slough Slough SamEling Date SA 9 11 A B 20 21 March 22-25, N = 26 N == 25 N = 12 N = 35 1983 50% Zero 52% at 90% 100% at 49 at 75% Yolk Sac Yolk Sac 50% Yolk Sac Yolk Sac Absorption Absorption Absorption Absorption 50% Late 48% at 50% 51% at 5096 Organogenesis Yolk Sac Yolk Sac Absorption Absorption April 20-23, N = 31 N = 43 N == 39 N = 2 N == 25 N = 65 1983 100% hatched 75-909;; 57% free 100% 75-90% 53% free 52% at 50% Yolk Sac Swimming Free Swimming Yolk Sac Swimming Yolk Sac Absorption 43% at 62% Absorption 47% at 85% Absorption Yolk Sac Beginning Yolk Sac 48% at 25% Absorption Emergence Absorption Yolk Sac I Absorption 0) 0) I -no data STAGE OF EVENT PERCENT OF INDIVIDUALS SAMPLED Percent 50 Emeroed 100[ .,-IOOr 0 .... en .5! , ~e so 0 D ..... ~: -0 100[ • ·;; • c • .. D " .. ... 0 0: D ;; ;! ':i D <!I Late· Eyed Early Late Early Percent 50 Hatched 0 +!tOOl • Late ... .. > .. .! u Early AUG I SEPT - +1100) • 11 ool I OCT I CHUM SALMON (221+•1100) +1!10) +!78) t(IOO) • (100) (100) +!50) 1(100) l((IOOI (100) NOV I DEC I JAN I FEB I +149) +(47) (43h (!111-f-e(IOOI (52lX X (481 X (50) XC50l X-SLOUGH 8A •-SLOUGH II +-SLOUGH 21 MAR 1 APR I Figure 3-16. Embryonic developme~t, hatching, yolk sac absorption, and emergence data for chum salmon at three sloughs, winter, 1982-1983. Numbers in parentheses are the percentages of individuals sampled which were at the indicated stage. The first hatching observed at the study sites occurred at Slough 11 and Slough 21 during late January. In February, alevins with up to 25 percent yolk sac absorption were present at all the sites sampled; unhatched embryos were also present. Sampling in March revealed a wide range in development. Slough 8A had individuals ranging in develop- mental stages from late organogenesis to newly hatched alevins, while samples collected from sloughs 9, 11, and 21 showed alevins ranging from 50 to 90 percent yolk sac absorption. Emergence for chum salmon began in early April and continued through the end of May. 3.3.2.2 Sockeye salmon Development and emergence data for sockeye salmon on the Susitna River between the Chulitna River confluence and Devil Canyon are presented in Table 3-5. Data from three of the sloughs are presented graphically in Figure 3-17. Fertilization of sockeye salmon eggs occurred in late August and early September. By late October, collected embryos were a 1 ready de vel oping from 1 ate gastrulation to early organogenesis. The first eyed embryos were found in November at Slough 11. By December, all sites sampled had eyed embryos which were well into organogenesis. Hatching sockeye salmon embryos were first observed at Slough 11 in late February. Sampling in March showed a wide range of embryo development from organogenesis at Slough 8A to 100 percent hatched and 25 percent yolk sac absorption at Slough 21. Emergence for sockeye salmon began in early April and continued through the end of May. -68- Table 3-5. Development and emergence data for sockeye salmon on the Susitna River between the Chulitna River confluence and Devil Canyon, August 1982 to April 1983. N =number of embryos or alevins examined. Sampling Date August 1982 September 6-7, 1982 October 22, 1982 November 17-18, 1982 December 16-21, 1982 January 26-30, 1983 February 21-23, 1983 -no data. Slough 8A Adults Spawning Slough 11 Adults Spawning N = 56 100% Final Stage Gastrulation N = 13 100% Organogenesis 5496 Eyed N = 5 100% Organogenesis All Eyed N = 4 10096 Late Organogenesis N = 61 1896 at zero % Yolk Sac Absorption 82% Late Organogenesis Sloughs & Mainstem Side Channels Sidechannel A N = 3 100% Organogenesis All Eyed Slough 20 Organogenesis Eyed Eggs Slough 21 Adults Spawning N = 4 100% Early Organogenesis N = 4 100% at Organogenesis All Eyed N = 17 10096 End Organogenesis A 11 Near Hatching I -....J 0 I Table 3-5 (Continued). Sampling Date March 22-25, 1983 April 20-23, 1983 -no data Slough SA N = 14 1001\i Organogenesis N = 13 100% Late Organogenesis Sloughs & Mainstem Side Channels Slough Sidechannel Slough Slough 11 A 20 21 N = 23 N = 12 52% 100% Hatched Newly Hatched 25% Yolk Sac 48% Late Absorption Organogenesis N = 77 N -32 38% Free 100% Free Swimming Swimming 62% at 90% Yolk Sac Absorption I '-J ....., I STAGE OF EVENT PE.RCENT OF INDIVIDUALS SAMPLED SOCKEYE SALMON + • :-'ooi o "c Ul,!! .. :! e-~0 "0 ,.. .. ..Q #." -0 I e(62l +1100) e11el .. ·;; Late ~ • g Eyed c: 0 ~ Early 0 c: Late .!! .2 ~ ~ .. Early " (!) La II .. "' ~ • u Early AUG Figure 3-17. +1100) e(IOO) e(!54l e(46l e(IOO) +(100) e(IOO) +1100) •182) • e(48l XIIOOl X -SLOUGH 8A e-SLOUGH II +-SLOUGH 21 XIIOO) Embryonic development, hatching, yolk sac absorption, and emergence data for sockeye salmon at three slouahs, winter, 1982-1983. Numbers in parentheses are the percentages of individuals sampled which were at the indicated stage. 3.4 Discussion Time and temperature are directly related during salmon embryo incu- bation. The measure used when computing the length of time for each phase of embryonic development is the temperature unit (TU). This is the number of days incubated multiplied by the mean daily temperature above 0°C. Temperature units for the study sites were calculated from the continuous intragravel temperature data which were presented in Section 2.0. The theory on development rate has been that development of the salmon egg stops at zero degrees centigrade. However, according to Seymour (1956, as cited by Raymond 1981), development does not stop at ooc but at some other temperature. As the average temperature approaches this value, development time becomes infinite. The equation is: k th =-----where: T-c -72- th = time to 50% hatching (days) k = a calculated constant. T = mean temperature in degrees centigrade, c = temperature at which development ceases. This equation can be re-written as: 1 1 T c k k The constants c and k can then be determined from the data th and T by linear regression. Raymond (1981) obtained values of 628.4 for k and -1.53 for c using data for time to 50 percent hatching from nine different incubation studies of northern chum stocks. Using the same equation to predict the time to 50 percent emergence (te), Raymond calculated a value of 683.8 for k and -3.32 for c. Raymond obtained a weaker correlation between te and T than between th and T and suggested that alevins are exposed to, and affected by, more variables which are not accounted for by the formula than are embryos. Two assumptions were made in this study when discussing development rates of chum and sockeye sa 1 man embryos. The first was that salmon embryos and alevins were actually incubated at the temperatures recorded by the Datapod recorders (Appendix A). This is a reasonable assumption, as the temperature readings actually taken within the redds {Table 3-3) were relatively close to those intragravel temperatures recorded by the Datapod recorders. The second assumption was that the embryos began incubation on the first of September. This date was chosen after reviewing the timing of the 1982 spawning (ADF&G 1983a) and after actual observations of incubating embryos. -73- Accumulated temperature units derived from the intragravel Datapod temperature recorders for three of the sites (the same sites plotted in Figures 3-16 and 3-17) are plotted in Figure 3-1S. Slough SA started to accumulate temperature units at a greater rate than the other two sites until an ice jam occurring in late November caused a large mainstem flow through Slough SA. This flow continued for several weeks. The cold mainstem water depressed the temperature of the intragravel water in this slough and there was little further accumulation of thermal units. The effect of this phenomenon on developing chum and sockeye embryos can be seen in Figure 3-16 and Figure 3-17, where salmon development and emergence in Slough SA was delayed in comparison to the other two sloughs. Also, observations of embryos collected in Slough SA suggest that an increased marta 1 ity may a 1 so have occurred, as evidenced by 1 arger numbers of dead embryos as compared with other sites that were sampled. We do not have a sufficient sample size to ascertain if this observation reflects actual differences in survival. 3.4.1 Chum salmon The development of chum salmon embryos and alevins was uniform at all sampling sites except Slough SA. Embryo development at Slough SA was 1 ikely retarded by low intragravel water temperatures resulting from the ice jam in the mainstem which diverted cold Susitna water through Slough SA. It is also possible that some incubation delay was caused by low levels of dissolved oxygen (DO) in the intragravel water of Slough SA (see Figures 3-13 and 3-14). However, intragravel DO was not measured until after hatching was completed and was not actually measured in the -74- I '"'-! U1 I 800 100 (f) ... z 600 ::I 11.1 0:: ::I 500 1-< 0:: 11.1 a.. 2 400 LLJ 1- 0 LLJ 1-300 < _J ::I 2 ::I 200 0 0 <( 100 I 0 AUG / / SLOUGH 21 /SLOUGH II / / --------_/_L_ ___________ \ /~--/ SLOUGH SA // / / / / / / / / / / / / / I / / / I '/ I I '/ /Y" /~ MONTH Figure 3-18. Accumulated temperature units for intragravel water at three sloughs, winter, 1982-1983. For both Slough 8A and Slough 21, the values were interpolated using data from two different Datapod recorders in these sloughs. Because of equi pme·1t loss or rna lfuncti on, a continuous record for any one of these recorders was not obtained. redds, so this cannot be confirmed. We can speculate that low intra- gravel DO levels in Slough 8A in April may have resulted from a lowering of intragravel flow caused by a silt layer deposited by the overtopping events earlier in the year. Table 3-6 presents a comparison of accumulated TU's needed to produce 50 percent hatching of chum salmon embryos and 50 percent emergence of chum salmon alevins at selected sites on the Susitna Rtver with other areas in Alaska. It appears that the TU' s required by chum salmon on the Susitna River are comparable to values required in the other areas. The times to 50 percent hatching for chum salmon from the three sloughs plotted in Figure 3-18 (Slough 8A, Slough 9, Slough 21) as a function of mean incubation temperature fall slightly above the regression line calculated by Raymond (1981) (Figure 3-19). The dates for 50 percent hatching and 50 percent emergence were determined by extrapolating from one period of observation to the next period and taking the mean of the two (see Tables 3-4 and 3-5). 3.4.2 Sockeye salmon As with chum salmon, all sites where sockeye salmon embryos and alevins were collected showed uniform development rates except Slough 8A. Development rates at Slough 8A were retarded because of low intragravel temperature. Sockeye salmon embryos took a longer time to develop to the 50 percent hatching stage then the chum salmon embryos. This -76- Table 3-6. Comparision of accumulated temperature units {TU's) and days needed to produce 50 percent hatching of chum salmon eggs and 50 percent emergence of chum salmon alevins at selected sites on the Susitna River with other areas in Alaska. TU's TU's and (days) and (days) required required Ternp.(°C) for Temp. (a C) for Brood min-max 50% min-max 50% 4 Location Year (mean) hatching (mean) emergence Clear Hatchery 1 1977 420 313 (3.0) (140) (3.0) (108) Clear Hatchery 1 1978 455 393 ( 3.8) (120) (4.1) (95) Eklutna Hatchery 2 1981 802 209 (5.0} (160) (4.5) (46) USFWS Laboratory 3 1982 0.5-8.0 306 Anchorage ( 1.8) {170) USFWS Laboratory3 1982 2.0-6.5 448 Anchorage (3.6) (124) USFWS Laboratory3 1982 3.0-5.9 489 Anchorage (4.6) ( 106) USFWS Laboratory3 1982 4.0-4.0 472 Anchorage {4.0) (118) Sus itna River -1982 0.0-6.8 539 0.0-6.8 Footnote #5 Slough SA {2.5) (218) ( 1.4) Susitna River -1982 2.9-3.5 501 2.9-3.6 232 Slough 11 ( 3 .1) (162) (3.2) (73) Susitna River -1982 3.4-7.4 534 3.3-7.4 283 Slough 21 Mouth {3.6) (148) (3.4) (84) 1 Raymond (1981) 2 Loran Wa 1 dron, Eklutna Hatchery, personal communication 3 Adapted from Waangard and Burger (1983) 4 Calculated from the time of 50 percent hatching to the time of 50 percent emergence 5 No emergence had occurred as of Apri 1 20. -77- Ot c .t::. 0 -0 J: ~ 0 0 10 0 -I -en ! >. -......! 0 ():) "0 I ..... 0 -I; .006 . 008 • 010 CHUM SALMON .......... ..... • DATA SOURCES: 0 This Study ..... + Raymond ( 1981) .... ..... .... ...... [) L. Waldron (Euklutna Hatchery· Personal Communication) • Preliminary Data from Wanoaard and Buroer ( 1983) 0 Regression Line from Raymond ( 1981) 0 ..... 0 ....... ..... ..... ... ..... _ --+ ......... ..... ..... ..... *=Intercept =0.00159 Slope= -0.00244 r = 0. 99 t 628.4 h=--T+I.53 0 ........ . .... ...... ..... ....... ..... .... ....... .012~--------------~--------------~--------------~---------------------- 1.0 Figure 3-19. 2.0 3.0 4.0 5.0 TEMPERATURE (°C) Effect of mean incubation temperature on time to 50 percent hatching for chum salmon. The regression line was calculated from several sources by Raymond (1981) and does not include the data plotted on this figure (except for the two Raymond, 1981 points). difference in maturation rate is similar to that found by other studies (Velsen 1980; Raymond 1981). The TU's and time required for 50 percent hatching and 50 percent emergence of the Susitna River sockeye salmon and some other stocks are shown in Table 3-7. The times to 50 percent hatching for sockeye salmon as a function of mean incubation temperature in this study (Slough 11 and Slough 21) and from other studies are plotted in Figure 3-20. All of the data fall close to the regression line (r = 0.99), which indicates no essential difference between the development rate of Susitna River sockeye salmon and the development rate of the other sockeye salmon stocks indicated in the figure. The value for k (649.4) in the equation on this figure is greater than the k value for chum salmon (628.4) on Figure 3-19, which is in accordance with literature (Velson 1980; Raymond 1981) stating that chum salmon development occurs at a greater rate than sockeye salmon development. These equations suggest that sockeye development ceases around ooc (c = -0.25), while chum development will occur down to minus 1.5°C (c = -1.52). 3.4.3 Conclusions The temperature units and times required for 50 percent hatching and 50 percent emergence for chum and sockeye salmon in selected sloughs and sidechannels of the Susitna River between the Chulitna River confluence and Devil Canyon appear to be basically the same as that required by other Alaskan stocks of these species. The data provide a basis to -79- Table 3-7. Comparision of accumulated temperature units (TU's) and days needed to produce 50 percent hatching of sockeye salmon eggs and 50 percent emergence of sockeye salmon alevins at selected sites on the Susitna River with othef areas in Alaska and Canada. TU's TU's and (days) and (days) required required Temp.(°C) for Temp.(°C) for Brood min-max 50% min-max 50% 4 Location Year (mean) ·hatching (mean emergence British Columbia 1 1980 595 (5.0) (119) 640 (8.0) (80) 627 (11.0) (57) Lake Iliamna 2 1962 643 (9.0) (71) USFWS Laboratory 3 1982 2.0-6.5 523 Anchorage (3.1) (169) USFWS Laboratory 3 1982 3.0-5.9 612 Anchorage (4.3) (142) USFWS Laboratory 3 1982 4.0-4.0 614 Anchorage (4.0) (154) Susitna River 1982 2.9-3.5 633 2.9-3.9 123 Slough 11 (3.1) (204) (3.3) (37) Susitna River 1982 3.3-7.4 678 3.3-7.4 103. Slough 21 Mouth (3.5) (194) (3.3) (31) 1 Velsen (1980) 2 Olsen (1968) 3 Adapted from preliminary unpublished report, (Waangard and Burger 1983) 4 Calculated from the time of 50 percent hatching to the time of 50 percent emergence -80- 01 c::: .s:::. 0 -0 ::z:: I ~ co 0 I-' 0 I I() 0 -·-en >. 0 'C .... 0 -1.: .ooo .005 .010 .015 .020 SOCKEYE SALMON ....... __ o" o . -... ---......... ----+-..... _ REGRESSION LINE CALCULATED FROM THE FOLLOWING DATA SOURCES: o This Study + Velsen ( 1980) OOisen (1968) ---- ---F"'------a.... ..l = lntercept=0.00039 th Slope: -QOOI54 r = 0. 99 I _ 649.4 h -T+0.25 -------+ • Preliminary Data from Wangaard and Burger ( 1983) .025~------~------~------~--------r-------~------~-------r-------.--------r 2.0 3.0 Fif)ure 3-20. 4.0 5.0 6.0 7.0 e.o 9.0 10.0 11.0 TEMPERATURE (°C) Effect of mean incubation temperature on time to 50 percent hatching for sockeye salmon. compare laboratory incubation studies with the actual rates of develop- ment observed in the field that, together, can be used to predict temperature effects on development. The differences in devel opmenta 1 rates among different sites suggest that the temperature changes which occurred in the system when the mainstem flow overtopped the head of Slough SA produced substantial changes in developmental rates in the chum ernbryos incubating at this site. The most pronounced effects of mainstem flows and temperature on devel- opment of incubating salmon embryos and alevins in sloughs and side- channels during the fall and winter occur when high water produced by floods or ice processes causes mainstem water to overtop slough heads and to flow over redds. In the absence of such an event, the influence of the mainstem on redds consists of the effect of mainstem stage on upwelling which can affect the rate of intragravel flow through the redds and the rate of heat exchange between the mainstem and the intra- gravel water of the slough. The relationship between mainstem discharge and upwelling is yet to be quantified. An analysis of impacts of altered flow or thermal regimes should con- sider these factors as possible components that may alter the natural timing of the incubation and development processes of juvenile sockeye and chum salmon in the sloughs and side channels of the Susitna River. -82- 4.0 BURBOT SPAWNING IN THE SUSITNA RIVER BELOW DEVIL CANYON Burbot (Lata lata) spawn during the winter in areas of the Susitna River which are subject to changes in mainstem flow and temperature. To date there has been little specific information available on the locations, timing, or habitat requirements of burbot spawning in the Susitna River drainage. Past studies indicate that burbot spawn in tributaries and sloughs of the Susitna River below Devil Canyon between November and February (ADF&G 1983b). According to residents living near Alexander Creek (RM 10.1) and the Deshka River (RM 40.6), burbot migrate enmasse into these tributaries during late November and early December. Residents of these areas reported that catches of burbot are high during December and January but decrease substantially after January. 4.1 Objectives The specific objectives of the burbot spawning studies during the 1982-1983 winter sampling season were: 1) Determine timing of burbot spawning; 2) Describe burbot spawning habitat. -83- 4.2 Methods Documentation of the exact spawning location and timing of burbot is difficult because they are reported to spawn nocturnally under the ice (Morrow 1980). Specimens were call ected at suspected burbot spawning areas during one two-day sampling trip per month from December to February to determine the time of spawning (incidence of post-spawning individuals). 4.2.1 Study site locations The Deshka River was the primary study location (RM 40.6). Two sampling sites on the river were established, one at the mouth (TRM 0.0) and the other at a site two miles upstream (Figt~res 4-1 and 4-2). These lo- cations had been sampled in previous winters and were chosen for their accessibility and high concentrations of burbot during the winter. During the winter of 1982-83, a few burbot were also captured at other sites on the Susitna River between the Deshka River and Devil Canyon (Appendix Table C-1). The relative maturity of all burbot captured in this reach of river were examined in order td help determine the timing and locations of burbot spawning. -84- I CX) U1 I I 40.6 ffi 0 1000 FEET ~STUDY AREA Fiqure 4-1. Suspected burbot spawning area at the mouth (TRM 0.0) of the Deshka River (RM 40.6). I co Q') I Figure 4-2. 0 500 FEET ~ STUDY AREA Suspected burbot spawning area at TRM 2.0 of the Deshka River ( RM 40.6). 4.2.2 Sampling techniques and determination of sexual maturity Trotlines and burbot sets, baited with fish, were used to capture burbot at all sites utilizing methods described in the FY 1982 procedures manual (ADF&G 1982). Sampling gear was set through the ice. Ice drilling was accomplished by use of a two man power auger. A necropsy was performed on all sampling mortalities to observe the development of gonads. Live fish were also sacrificed when necessary to obtain a sample size of at least ten fish during each sampling trip. Otoliths were removed for age determination. Sexual maturity or immaturity was determined by the size of the eggs or sperm sacs in comparison to gonads of other burbot of similar length. Past data indicated that the majority of adult burbot spawn each year and that the gonads begin to enlarge noticeably in August (ADF&G 1983b). Sexua 11 y ripe gonads were examined and then preserved in forma 1 in for comparison with gonads collected during later surveys (Plate 4-1). External characteristics of gonads such as size, color and texture of egg and sperm sacs were documented. Internal characteristics, including the size and presence or absence of eggs in the egg sacs, were a 1 so recorded. 4.2.3 Habitat measurements The Deshka River sites (RM 40.6) were sampled once per month to deter- mine physical and chemical characteristics of habitats suspected to be -87- I 00 00 I Plate 4-1. Necropsy of a burbot to determine sex and relative maturity at the Deshka River (RM 40.6), mid-January, 1983. uti 1 ized by burbot for spawning. Habitat parameters measured included ice thickness, water depth, under-ice water velocity, dissolved oxygen, specific conductance, pH, and water temperature. Specific data col- lection methodology and field experimental designs used in the col- lection of the above data are summarized in the FY 82 procedures manual (ADF&G 1982). The sampling sites were also mapped (Figures 4-1 and 4-2). 4.3 Results 4.3.1 Habitat data Habitat data collected at the above sites are listed in Tables 4-1 and 4-2. Water depths in the study areas ranged from 2.2 to 9.8 feet (x = 6.2 feet, n = 21), under-ice water velocities ranged from 0.3 to 2.1 ft/sec (x = 0.8 ft/sec, n = 14). Water temperatures measured in the study area were near 0°C. 4.3.2 Sexual development Sexually ripe burbot were captured from early December, 1982 to mid-January, 1983 between Cook Inlet and Devil Canyon. Spawned out burbot were first captured during a mid-February sampling trip to the -89- I 1.0 0 I Table 4-1, Physical and chemical characteristics of suspected burbot spawning habitat at the mouth (TRM 0.0) of the Deshka River (RM 40.6). ICE WATER WATER DISSOLVED SPECIFIC WATER Notes: THICKNESS DEPTH VELOCITY OXYGEN CONDUCTANCE TEMPERATURE Sexual Condition DATE SAMPLE ( FT) ~ (FT/SEC) (MG/L) (UMHOS/CM) ....E.!:!_ (oC) of Burbot 821203 A 1.8 5.9 15.6 69 6.3 0.0 Pre-Spawning Burbot Milling B 1.7 7.3 14.8 117 6.5 0.0 c 1. 8 8.2 15.0 79 6.6 0.0 D 1.3 6.5 1 2. 2 67 6.7 0.0 830112 A 1.5 4.5 0.6 10.6 58 6.3 0.7 Pre-Spawning Burbot Milling B 2.0 4.5 1.2 c 1.8 7.5 0.7 10.2 58 6.1 0.5 D 1.8 9.8 0.6 1 o. 1 58 6.1 0.3 E 1.8 9,0 0.6 1 o. 2 58 6,1 0.3 F 1.9 7.5 0.7 G 1.9 8.8 0.7 8,5 59 6.4 0.1 H 1.7 9.2 0.6 830217 A 1.9 4.7 eddy 83 0.0 Post-spawning B 1.9 2.2 2.1 84 0.0 c 1.9 5.0 81 0.0 D 1.9 4.7 79 0.0 - = Not sampled Table 4-2. Physical and chemical characteristics of suspected burbot spawning habitat at TRM 2.0 of the Deshka River {RM 40.6). ICE WATER WATER DISSOLVED SPECIFIC WATER Notes: THICKNESS DEPTH VELOCITY OXYGEN CONDUCTANCE TEMPERATURE Sexual Condition DATE SAMPLE (FT) __iUl_ (FT/SEC) (MG/L) (UMHOS/CM) __e!!_ (oC) of Burbot 821203 A 1. 0 Pre-Spawning Burbot Milling B 0.7 c 1.1 D 0.7 820311 A 1. 8 5.2 0.3 11.7 67 6.0 o. 1 Post-Spawning B 2.0 5.6 0.4 11.9 67 6.0 0.3 c 2.2 4.0 0.4 11.4 67 5.5 0.3 D 2.2 4.6 0.9 11 .6 68 6.0 0.1 E 2.0 4.5 1 • 1 11.4 68 6.1 0.1 I l.O ....... ~ "' Not sampled I mouth of the Deshka River. All burbot captured during this sampling trip and subsequent trips were either post-spawners or had unripe sexual organs. Sampling locations and catch per unit effort of all burbot captured during the winter of 1982-1983 are listed in Appendix Table C-1. Monthly examinations of sexually ripe burbot gonads showed that the size increased from early December to mid-January, then progressively de- creased in size through March. Accordingly the color of the egg and sperm sacs increased in intensity up to mid-January. Egg sacs changed from a light yellow color to a dark orange and sperm sacs changed from a cream to a golden color. Similar color changes in egg and sperm sacs have been reported in sexually ripe burbot captured elsewhere in south central Alaska (Mike Stratton pers. comm.). Egg sacs were examined each month to determine if spawning had occurred. Eggs were found in all enlarged (sexually ripe) egg sacs examined during December and January. Only residual eggs were found in enlarged egg sacs of female burbot examined in February and March. 4.3.3 Age, length, and sex composition Analysis of the age composition and total lengths of 69 burbot caught during the winter of 1982-83 yielded the following results. Ages ranged from age IV to age XII with ages V (21.7%) and VI (29.0%) burbot composing the two most frequently sampled age classes (Appendix Table -92- C-2). Figure 4-3 i 11 ustrates the average 1 ength and range of 1 engths for each age class of Susitna River burbot sampled from December, 1982 to II,Ja rch, 1983. Fifty-nine of the 69 burbot examined by necropsy were sexually ripe or showed signs of having spawned during the winter of 1982-1983. Thirty-nine of the pre-or post-spawners were females, ranging in total length from 430 to 795 mm and encompassing age classes V to XII. The remaining 20 pre-or post-spawners were males, ranging in length from 424 to 780 mm and encompassing age classes IV to XI. Ten sexually unripe burbot were also examined. Seven were females ranging in length from 395 mm to 710 mm and age from IV to XII years. The three males ranged in length from 425-585 mm and age from IV to VII years. 4.4 Discussion 4.4.1 Timing and location of spawning Resu1 ts of studies conducted during the winter of 1982-1983 indicated that burbot spawn in the Susitna River below Devil Canyon between mid-January and early February. Results from the 1981-1982 studies had shown only that burbot spawn in this reach of the river prior to February (ADF&G 1983b). -93- 800 750 t- " 6 c: E E :r: ..... (!) z t- ILl " ...J c: ...J <t ..... 0 0 ..... N II c: co I() II 500 - II c: c: IV V VI VII VIII IX AGE 10 " c: X N II c: N II c: I-RANGE,n=69 •-MEAN XI XII Figure 4-3. Age-length relationship for burbot captured in the Susitna River between Cook Inlet and Devil Canyon, December, 1982 through March, 1983. -94- To date, the exact locations where burbot spawn in the Susitna and Deshka rivers have not been determined because spawning has not actually been observed. By systematically sampling between the mouth of the Deska River and two miles upriver from the mouth throughout the winter, sexually ripe and spent fish were captured. Therefore it is likely that spawning occurred somewhere in this two mile reach. The sites on the Deshka River where burbot spawning was suspected is characterized by slow to moderate flows and medium water depths (2.2 - 9.8 ft) (Tables 4-1 and 4-2). The water i~ stained with· tannins from muskeg areas at the Deshka River's source. Past studies have determined the substrate base at the mouth to be predominantely gravel/ rubble which is often covered by several inches of silt (ADF&G 1981a). Although most data collected to date indicates that burbot spawn at tributary mouths such as the Deshka River and Alexander Creek (RM 10.1), radio telemetry data suggests that burbot may also spawn in the mainstem. Three of the five radio-tagged burbot known to be alive during the monitoring of winter 1981-1982 movements remained in the mainstem from January to February (ADF&G 1983b). Data collected during the 1982-1983 winter radio telemetry study also indicates that burbot reside in the mainstem during the determined spawning period (see Section 5.0 of this report). MacCrimmon (1959) suggests that a post-spawning dispersal occurs for feeding purposes. Substantial decreases in catch rates follo~tJing -95- spawn·ing in late January indicate that a post-spawning dispersal may also occur in the Susitna River drainage. Although most of the burbot captured during the winter 1982-1983 were at sites bel ow the Chulitna River confluence, severa 1 sexually ripe burbot were also caught above the confluence {Appendix Table C-3). No spawning sites have been located above the Chulitna confluence; however, juvenile burbot catches made in 1982 suggests that burbot spawning may have occurred in Slough 9 (ADF&G 1983b). The sexually ripe fish captured in winter 1982-1983 at mainstem sites suggest that spawning may also occur in the mainstem. 4.4.2 Age, length and sex composition Although most of the burbot captured during the winter of 1981-1982 and 1982-1983 were sexually ripe, severa 1 sexually unripe adults were a 1 so captured (ADF&G 1981b; 1983b). These unripe fish were all over 350 mm in length. Data from 1981-1982 indicates that male burbot could become sexual ripe when they reach 310 mm in length and ripe females were found that were 330 mm in length. Because the sexually unripe fish were over the determined minimum spawning lengths, it is possible that these fish were nonconsecutive spawners or that there is larger variability in the size to maturity than previously expected. Burbot have been captured in the Susitna River below Devil Canyon up to 905 mm in length and aged to XV years since the fall of 1981 (ADF&G 1983b, Appendix Table C-4). Pooled age-length data from 1981 to 1983 -96- studies suggest that burbot below Devil Canyon have a rapid growth rate up to age IV. After age IV, mean 1 ength data shows that the growth slows to about 40 mm a year. Age-length data from 1982 suggests that burbot have a higher growth rate in the reach of river below the Chulitna River confluence compared to the reach of river between the confluence and Devil Canyon (ADF&G 1983b). For a given age, the average mean 1 engths of fish be 1 ow the confluence were consistently 10-15 mm greater than for fish above the confluence. Using pooled age-length data, age-length relationships can be determined between male and female burbot in the Susitna River. Scott and Crossman (1973) reported females become significantly longer than males after age IV. This is not the case with Susitna River burbot. For the reach of river below the Chulitna River confluence, females tend to be larger than males only at ages IV and V, and then after age X. The same is true for the reach of river above the Chulitna River confluence, at least up to age IX; before and after these ages, the sample size was too small to make any comparisons. Female burbot in the Susitna River tend to live longer than males; this is also true of burbot elsewhere (Morrow 1980). The three fish aged in the Susitna River which were over 800 mm were females and comprised the three oldest age classes found, ages XIII to XV. -97- The sex composition in 1981 was about 1:1, males to females (ADF&G 1981b). In 1982, the ratio decreased to 1:1.5 males to females and, in the 1982-1983 winter work, the ratio had decreased to a 1:2.0 ratio (ADF&G 1983b, Appendix Table C-3). Although no reason can be determined for the yearly differences in sex ratios between 1981 and 1982, the higher sex ratio recorded during the winter of 1982-1983 could be related to the sampling schedule. Sampling was conducted monthly from January to October in 1981 and 1982 and only from December to March in 1982-1983, which is the period of spawning. Although Chen {1969, as cited by Morrow, 1980) indicated that males arrive at the spawning grounds before females, the 1982-1983 Susitna River data suggests that females arrive first. Sex ratios at the Deshka River in December were 1:5.0, in January 1:1.5 and by February were 1:1.2 males to females. This ratio could explain the higher male to females ratio in comparison to 1981 and 1982. 4.4.3 Conclusions The data presented provide information on the timing of burbot spawning and on the habitat conditions associated with spawning in the Susitna drainage. Limited information on the burbot spawning in the reach of river above the Chulitna confluence suggests spawning may occur in areas directly affected by mainstem flow of the Susitna River. -98- Substantial changes in discharge anticipated during the winter as a result of the proposed hydro-electric project could potentially affect substrate stability which could influence the spawning success of burbot in this reach of the river. Further data on the precise locations and substrate used for spawning by this species, and an analysis of winter velocities and effects on substrate under incremental winter flow conditions, would. provide the data needed for determining the probable effects of flow regulation on burbot reproduction. -99- 5.0 WINTER RADIO TELEMETRY INVESTIGATIONS OF RESIDENT FISH In order to evaluate the impacts that may result from the Susitna hydro- electric project and ultimately to develop mitigation strategies, information on the movements, spawning habitat, and overwintering habitat of an important resident fish species is required. Overwintering habitat caul d be an important factor affecting resident fish survival. The following objectives of the radio telemetry studies were set up to meet these requirements. 5.1 Objectives 5 .1.1 Radio telemetry studies below Devil Canyon The specific objectives of the rainbow trout (Salmo gairdneri) and burbot (Lata lata) radio telemetry studies below Devil Canyon during the 1982-83 winter sampling season were: 1) Identify rainbow trout and burbot overwintering habitat; 2) Determine when rainbow trout return to the tributaries and identify rainbow trout spawning habitat; and 3) Determine burbot spawning habitat and timing. -100- 5.1. 2 Radio telemetry studies above Devil Canyon The specific objectives of the Arctic grayling (Thymallus arcticus) radio telemetry studies above Devil Canyon during the 1982-83 winter sampling season were: 1) Identify the overwintering habitat of Arctic grayling within the proposed impoundment areas; 2) Determine Arctic grayling spawning habitat and timing within the proposed impoundment areas; 3) Identify the overwintering habitat of Arctic grayling in the Deadman Lake system; and 4) Determine Arctic grayling spawning habitat and timing in the Deadman Lake system. 5) Determine the feasibility of radio-tagging Arctic grayling, which, to our knowledge, has not been previously attempted. 5.2 Methods 5.2.1 Radio Tags Radio telemetry equipment used in this study was developed by the Smith Root Corporation in Vancouver, Washington. Equipment consisted of a low frequency (40 MHz) radio tracking receiver {Model RF-40) and scanner -101- (Model SR-40), a loop antenna (Model LA-40) and 80 transmitters _(Model P40-500L 3V). This equipment was also used in the study of adult anadromous species (ADF&G 1981c). The transmitters used were cylindrical, encapsulated in plastic, and had a 17-cm external antenna. The transmitters measured 5.3 em in length and were 1.6 em in diameter. Each tag weighed approximately 13-gm dry weight. The power source for the transmitter was a three volt, lithium battery which has a 1 ife expectancy from 180 to 324 days, depending on the pulse rate. Different frequencies, between 40.600 and 40.750 MHz, and pulse rates, between 0.5 and 3 per second, were used to differentiate between the 80 radio tags. For example, tag number 600-.5 refers a radio tag with a frequency of 40.600 MHz, with a pulse rate of 0.5 pulses/sec. The radio tags were immersed in water for 48 hours and then tested for signal strength and frequency before they were implanted in fish. 5.2.2 Transmitter implantation ~ish were collected by electroshocking, hook and line, trotlines, and hoop nets. No injured or lethargic fish were radio tagged. Each fish determined to be suitable for radio tag implantation was placed in a holding box and anesthetized with MS-222 (tricaine methane-sulfonate). After the fish were anesthetized, their lengths were measured to the nearest millimeter (fork length for rainbow trout and Arctic grayling and total length for burbot). Scales were taken from the rainbow trout for aging purposes. All species were tagged with Flay anchor tags~ Based on personal communications with Carl Burger (USFWS) and experience -102- gathered from the 1981-82 radio telemetry studies, a minimum length for radio-tagging was selected for each species. Minimum lengths of rainbow trout, burbot and Arctic grayling to be radio tagged were 390mm fork length, 525mm total length and 370mm fork length, respectively. It was felt that fish smaller than these minimum sizes would not be able to tolerate the radio tags. A transmitter was surgically implanted in the coelom using a procedure similar to that described by Ziebell (1973) (Plate 5-1). The surgical procedure was similar· for all three species. A three to five em incision was made on the midline of the ventral surface, slightly behind the pectoral fins and antibiotics (ampicillin and terramycin) were sprinkled into the body cavity. The radio tags were inserted with the antenna toward the posterior end of the rainbow trout and burbot and toward the anterior end of the Arctic grayling. Care was taken to make sure the antennae were fully extended. Each incision was then closed with five to eight individual sutures of commercial silk, monofilament nylon, or monofilament fishing line. Burbot were implanted with 6-month tags, Arctic grayling with 9-month tags and rainbow trout with 9-month tags and some 6-month tags when the supply of 9-month tags were exhausted. Each fish was then placed into a live box and held upright until it regained its equilibrium. observation. The sutures were The fish were he 1 d overnight for then checked and the implanted transmitter's signal was tested. it had been captured. Each fish was then released near where 103- Plate 5-l. Surgical implantation of a radio transmitter into a burbot at Mainstem Susitna (Rt1 84.1). -104- .5.2.3 Tracking The fish were radio tracked by boat, aircraft and snowmobile. Boat tracking proved adequate until mid October, when the formation of slush ice in the river prevented further boating. Winter aerial tracking was conducted from September 16, 1982 to April 30, 1983. Aerial tracking procedures we.re identical to the methods used and described by Adult Anadromous Investigations (ADF&G 1981c). Tracking was generally done twice per month during the fall and once per month during the winter. Depending on the weather, radio tracking flights covered the entire Susitna River from its mouth upstream to the confluence of the Oshetna River (RM 233.4). Selected tributaries were also periodically searched (Appendix Table D-1). The following assumptions were made regarding radio-tagged fish which were suspected of having tag implantation injuries or a radio tag failure. A radio tagged fish was presumed injured if it exhibited rapid downstream movement shortly after tagging; or in the case of Arctic grayling if they passed over Deadman Creek Falls or were located downstream of Devil Canyon (RM 151.0). A radio tag failure in a fish was assumed if there was a sudden loss of the radio signal and no further reception was made during the next four to six weeks throughout the study area (RM 0.0 -RM 233.4). Snowmobile tracking was conducted in March to pinpoint the exact location of radio tagged fish, to determine the fate of the fish, and to determine if the locations of the radio tagged fish were in areas where -105- large concentrations of resident fish had gathered to overwinter (or in the case of burbot, to spawn). 5.2.4 Habitat data collection Data recorded during aerial radio tracking surveys included the date, location of the fish (to the nearest 0.1 mile) and general habitat characteristics (i.e., open lead, riffle, pool). During subsequent ground surveys in March, fish were located to within a four foot radius, and additional habitat data was recorded. These data included ice thickness, presence or absence of slush ice, water depth, water velocity, substrate types, and general water quality. Maps were drawn and photographs were taken of the area where each radio-tagged fish was located. -106- 5.3 Results 5.3.1 Rainbow trout below Devil Canyon Between September 8 and October 15, 1982, 18 rainbow trout were radio-tagged in the Susitna River downstream of Devil Canyon. Five were captured at the mouth of Indian River (RM 138.6), one in Slough 15 (RM 137.3), 10 at the mouth of Fourth of July Creek (RM 131.1), one in Slough SA (RM 125.3), and one in the mainstem at R~1 75.6. The fork lengths of the radio-tagged rainbow trout ranged from 410 to 550 millimeters. Ten of the radio-tagged rainbow trout were implanted with 9-month transmitters in order to obtain information on pre-spawning behavior during the spring of 1983. However, the majority of the 9-month trans- mitters failed to function. The signals of seven 9-month tags terminat- ed in less than two weeks and the eighth stopped transmitting within 30 days. A summary of tracking data from the 10 rema·ining radio-tagged ra·inbow trout in the Susitna River between Cook Inlet and Devil Canyon from September, 1982 to April, 1983 is presented in Appendix Table 0-3. Individual fish movements are plotted in Figures 5-l and 5-2. Throughout their reception life, four radio-tagged rainbow trout (num- bers 600-.5, 600-1, 670-3, 680-1) exhibited minimal movements ranging -107- !50 12!5 w :::! :::!; Ct: 100 w > I a:: I-' 0 co I 75 !SO ~-------------:-------:--::-=-... -• -· ..... 680·1 o---i------•---•----e---e510-3 SLOUGH 8A • • 600•1 l--___.__ _.__ ----------- -____.__ -------660-.5 -.- •.. • ····•····. • •• ···•·· ··•········· •••••.••• ··•600·.5 OF!SH LOCATED IN TRIBUTARY e FISH LOCATED IN I\IAINSTEM SUSITNA RIVER SEPT. !5 oct 15 NOV. I~ 1982 DEC. 15 JAN. 15 FEB. 15 MAR. 15 1983 APR. 15 Figure 5-l. Movement of five radio-tagged rainbow trout in the Susitna River drainage below Devil Canyon~ September, 1982 through Jl,pril, 1983. 150 l 25 UJ ....J -100 :::E a: UJ ~ a: I 1--' 0 75 \.0 I 50 ------.... /620•1 ..... ..... ·-. ....., ~ ___ ....__ -+-,..:.:::. ---«-.•. ··•·· .. \ ~' ·•:,.. ..::::..... / \ .. . , ... , / . ·. '..... _/ \ . ~----. . .... . .... • ......... ":-..: ...... 710"1 ' 'u 640-1 (Tolkeelno RM. 1.5) 0 FISH LOCATED IN TRIBUTARY e FISH LOCATED IN MAINSTEM SUSITNA RIVER SEPT. I 5 OCT. 15 NOV. 15 1982 -----------660•1 \ \ \... _____________ .... ---·-·-···-600"3 DEC. 15 JAN. !5 FEB. 15 1983 MAR 15 Figure 5-2. Movements of five radio-tagged rainbow trout in the Susitna River drainage below Devil Canyon, September, 1982 through March, 1983. from 4.5 miles downstream to 1.6 miles upstream from their release sites ( F i g u re 5-1 ) . Rainbow trout 620-1 remained within 3 miles of its tagging site (Fourth of July Creek, RM 131.1) for 2.5 months before migrating 20.1 miles downstream. After spending over one month in the vicinity of Gash Creek (RM 111.5), it moved upstream to RM 131.5 where it was last located on March 6, 1983 (Figure 5-2). The remaining five radio-tagged rainbow trout (600-3, 640-1, 660-1, 660-.5, 710-1) migrated distances of 14.0 to 76.6 miles downstream from their release sites (Figure 5-1 and 5-2). All but one of these fish (640-1) overwintered in the mainstem Susitna River at their furthest downstream location. Rainbow trout 640-1, was located at the mouth of Indian River (RM 138.6) on November 15, 1982, and subsequently migrated a minimum of 41.6 miles down the Susitna River and 1.5 miles up the Talkeetna River where it was relocated on February 4, 1983. On March 4 and from March 9 to 12, 1983, ground surveys were conducted to locate and determine the status of four radio-tagged rainbow trout (600-1, 600-3, 620-1, 660-.5). Rainbow trout 600-1 and 620-1 were located at RM 131.5 in 4.5 feet of water with an estimated velocity of 1 to 2 feet per second. It is believed that rainbow trout 620-1 was alive at that time since it had recently moved upstream 20.1 miles. The other -110- two rainbow trout (660-.5 and 600-3) were both located under ice and slush ice in four to six inches of water. The fate of all four of these radi a-tagged rainbow trout was not determined s i nee no movements were detected for any of these fish when holes were drilled with ice augers in the vicinity of their strongest transmitter signal. 5.3.2 Burbot below Devil Canyon Eleven burbot were captured and radio-tagged at seven sites in the Susitna River below Devil Canyon between August 20 and October 15, 1982. Seven burbot were captured, radio-tagged, and released at slough and mainstem sites between RM 101.2 and RM 139.5. Three burbot were captured, radio-tagged and released at Sunshine Slough (RM 84.0). The remaining burbot was captured at Birch Creek Slough (RM 88.4), but was tagged and released at Rfvl 84.1 due to unnavigable river conditions caused by newly formed slush ice which prevented return to Birch Creek Slough. Lengths of radio-tagged burbot ranged from 535 to 865 millimeters. A summary of tagging and tracking data for all radio-tagged burbot are presented in Appendix Table D-3. Winter movements of six radio-tagged burbot were monitored between December, 1982 and March, 1983. Limited data was collected on the remaining five burbot due to tagging injuries or radio tag failures. -111- Two of the six burbot that were tracked successfully during the winter of 1982-83 (600-1, 670-1) moved less than one mile from their release sites. The other four burbot (710-3, 680-2, 640-2, 660-2) moved downriver 7.3, 11.4, 37.1, and 113.6 miles, respectively (Figure 5-3). During a sampling trip conducted between l\1arch 9 and March 12, 1983, it was determined that burbot 670-1, 710-3, and 680-2 were alive. Ice augering in the vicinity of these radio-tagged fish at RM 82.5, 76.1, and 72.0 caused the radio-tagged burbot to move from 20 to 50 feet. Burbot 670-1 and 680-2 were located in less than five feet of water with little or no velocity (Table 5-1). Burbot 710~3 was found in 15 feet of water with moderate velocity. Trotlines set in the vicinity of these radio-tagged burbot failed to recover the radio-tagged fish; however, 11 untagged burbot were captured at these sites. 5.3.3 Arctic grayling above Devil Canyon From late August through early October, 1982, 37 Arctic grayling in the tributaries of the Susitna River above Devil Canyon were implanted with radio transmitters. Eight grayling were radio-tagged ·in Tsusena Creek (RM 181.3), 4 in Deadman Creek (R~1186.7), 6 in Watana Creek (R~1194.1), 13 in Kosina Creek (RM 206.8), and 6 in the Oshetna River (RM 233.4). Lengths of Arctic grayling selected for radio-tagging ranged from 370 to 415 millimeters. -112- LLI _J :::E 0:: I LLI 1--' 1--' > w I 0:: 150 12!5 •· .. ~ •• • ...................................... 00 ......... 600"2 ---._, \ I \ \ . 100 L._._\---------e640·2 75 .......... ~~·=-·-~·-=-·-·=-·-·-·-·:_·-·-e670-l ...,.___':"'....._ _________ ...__________ . -·-110-3 ·\ ------• 6eo-2 \ 50 \ 25 \_ .. -... ~ ... -... ---660·2 e FISH LOCATED IN MAINSTEM SUSITNA RIVER SEPT 15 OCT 15 NOV 15 DEC 15 JAN 15 FEB 15 MAR 15 DATE Figure 5-3. Movements of six radio tagged burbot in the Susitna River below Devil Canyon, September, 1982 through March, 1983. I ....... ....... .J:::> I Table 5-1 Physical and chemical hamitat characteristics measured in the vicinity of radio-tagged burbot in the Susitna River during March• 1983. Ice Water Water Dissolved Specific Water Thickness Depth Velocity Oxygen Cond. Temperature R.M. Geographic Code Date (ft) (ft) (ft/sec) ~ (umhos/cm) .P!:! (oC) Comments 72.0 S23N05W35ACC 83/03/11 4.2 4.4 0.3 223 7.2 0.0 Location of radio-tagged burbot 680-2 76.1 S23N04W07ACC 83/03/11 3.0 15.0 2.5 1 2. 1 206 7.4 o.o Location of radio-tagged burbot 710-3 Approx. 82.5 S24N05W22BBA 83/03/11 3.5 1.0 No specific habitat measurements location of radio-tagged taken due to three feet of slush burbot 670-1 ice under the ice. A summary of tracking data for 15 radio-tagged Arctic grayling ir1 the Susitna River drainage above Devil Canyon is presented in Appendix Table D-4. Individual fish movements are presented in Figures 5-4 to 5-6. Little or no data were obtained from the remaining 22 radio-tagged grayling due to an unexpected high rate of radio-tag failures (12) and assumed mortalities of radio-tagged fish (10). Table 5-2 presents the timing of the Arctic grayling outmigration from tributaries above Devil Canyon into the mainstem Susitna River. Based on the incidence of radio-tagged grayling located in tributaries during weekly and bi-monthly aerial surveys, most radio-tagged Arctic grayling entered the mainstem Susitna River in late September and early October. However, two radio-tagged grayling remained in the lower one half mile of tributaries (600-1 in Oshetna River and 710-.5 in Kosina Creek) until December 14, 1982 and February 4, 1983, respectively. After the radio-tagged grayling dropped out of the tributaries into the mainstem Susitna River, most migrated downstream and overwintered in the mainstem. Downstream migrations in the mainstem Susitna River ranged from 2.1 to 50.8 miles, with an average movement of 19.8 miles. ~1ost fish reached their overwintering areas within 30 days and exhibited minimal movements during the winter months. However, three radio-tagged Arctic grayling (650-6, 710-1, and 720-1) did move upstream 1.0 to 5.5 miles to reach their overwintering areas during the early months of the winter. -115- 225 200 \.IJ _J :E 175 cr LLI > I--' I--' cr 0"1 I 150 12 5 OSHETNA R. 0• • • • • • • • • ••0• ·Q •. o--~·:-·-·-·-·-740-.5 •• . .................... 720•! · ... · KOSINA CR. \ WATANA CR. \ DEADMAN CR. \ TSUSENA CR. \,~so::s-------------.... 720·.6 \ \ ·~ ~ ~~--=a=...-~0 ~620-.6 -- 0 FISH LOCATED IN TRIBUTARY e FISH LOCATED IN MAINSTEM SUSITNA RIVER AUG. 15 SEPT. 15 OCT. 15 NOV. 15 DEC. 15 JAN. 15 FEB. 15 MAR. 15 1982 1983 Figure 5-4. Movement of six radio-tagged Arctic grayling in the Susitna River drainage, Devil Canyon and above, August, 1982 through January, 1983. LLI _. ::E cr: LLI > cr: I ...... I-' -......! I 225 200 175 150 125 OSHETNA R. KOSINA CR. WATANA CR. DEADMAN CR. TSUSENA CR. DEVILS CANYON O•••O• .. o••o•••t{]•o •·•• ••• . .. • . . .• • . •• .• • •• . • • . • . • • • . • . • • . • • 740·. 6 ~ \ \ 0. - o---o---o-o-----_.__L!.__-!_ • • . • •I·,U··.~ \ ---------------630-.5 '...-----~ ., .. ,:; \ ~------------------...-----------.. ~)'-''"' \ \_ ----------.-------650-.6 0 FISH LOCATED IN TRIBUTARY "v e FISH LOCATED IN MAIN STEM SUSITNA RIVER AUG.I!5 SEPT.1!5 OCT.-1!5 1982 NOV.I!5 OEC.I!5 JAN. 15 FEEl. 15 MAR.I5 1983 Figure 5-5. Movements of five radio-tagged Arctic grayling in the Susitna River drainage, Devil Canyon and above, August, 1982 through March, 1983. 200 11.1 ~ :::E 175 a: 11.1 > n ....... a: ....... 00 I 150 125 i OSHETNA R. 0·•••• ·Ot·.:~··•O•O••••• ·• • • • •• ·'" 0'' •' 'O· .• 0 600·1 KOSINA CR. .. .., I I \ I I ~-.... ~-,~ -----~----------------720-.5 ~-~--I -"t:----------4---------670· I WATANA CR. ' DEADMAN CR. TSUSENA CR. 0 fiSH LOCATED IN TRIBUTARY • FISH LOCATED IN MAINSTEM SUSITNA RIVER i AUG. 15 I SEPT. 15 I OCT 15 1982 I NOV. 15 I DEC. 15 i JAN. 15 FEB· 15 1983 MAR. 15 APR. 15 Figure 5-6. Movement of four radio-tagged Arctic grayling in the Susitna River drainage, Devil Canyon and above, August, 1982 through April, 1983. Table 5-2 Timing of radio-tagged Arctic grayling outmigration from tributaries into the mainstem Susitna River above Devil Canyon. Tracking Total number Number in Percent in date radi a-tagged . tributaries tributaries 9/18 12 12 100 9/27 12. 10 83 . 10/2 15 7 47 10/15 15 5 33 10/30 15 2 13 -119- A ground survey was conducted between ~1arch 1 and March 4, 1983 to determine the fate of six radio-tagged Arctic grayling whose signals were still being received (Appendix Table D-4). Five were located between RM 187.0 and RM 198.0 and the last was found in Devil Canyon at RM 153.1. By ice augering in the vicinity of the radio-tagged fish and observing habitat conditions, it was determined that two of the six fish were in suitable aquatic environments and were conceivably still alive. The first live grayling, 650-.6, was located at Rt4 153.1 in approxi- mately two feet of water with an estimated velocity of 2 to 4 feet per second. The second live grayling was overwintering at RM 187.0 in a pool six feet deep with an estimated water velocity of less than 1 foot per second. The remaining four grayling were located out of water on gravel bars or frozen solid in ice and in both instances were presumed dead. 5.4 Discussion 5.4.1 Rainbow trout below Devil Canyon Movements by 10 radio-tagged rainbow trout over the winter of 1982-83, were variable, ranging from 20.1 miles upriver to 76.6 miles downriver. Locations of radio-tagged rainbow trout throughout the winter suggests that mainstem reaches influenced by tributaries may be important overwintering areas for rainbow trout. f'<1ainstem areas below Fourth of July Creek (RM 131.1), Lane Creek (RIVl 113.6), and Gash Creek (RM 111.5) are examples of overwinter·ing areas where rainbow trout resided for -120- extended periods of time. The location of rainbow trout 640-1 in the Talkeetna River indicates that overwintering may occur in the larger Susitna River tributaries as well. Results of limited radio telemetry and tag-recapture studies on rainbow trout during the winter of 1981-1982 indicated that rainbow trout overwinter in relatively short reaches of the mainstem Susitna River and their movements are restricted during the winter months. Studies of rad i a-tagged rainbow trout movements on the Sus itna River were continued and expanded during the winter of 1982-1983. Four of the radio-tagged rainbow trout moved less than 4.5 miles from their release sites all winter and tended to remain in the mainstem Susitna River near the same tributaries (three near Fourth of July Creek and one near Montana Creek, RM 77 .0) where they were initially tagged. A fifth radio-tagged rainbow trout moved a total of 20.1 miles downriver between October and February and then in March it returned to Fourth of July Creek where it was originally tagged .. The remaining five radio-tagged rainbow trout migrated extensively downriver from their release sites between mid-November and mid-January. After. reaching their furthest downriver locations, the movements of these five radio-tagged rainbow trout were restricted to the same general areas in the mainstem Susitna River. Termination of radio signals from these last five radio tags in February and March prevented investigators from determining whether these rainbow trout migrated back up-river to the tributaries where they were initially captured prior to spawning. -121- 5.4.2 Burbot below Devil Canyon By monitoring radio tagged burbot over the winters of 1981-1982 and 1982-1983, it has been found that burbot concentrate in specific areas and migrate little during the winter in the Susitna River. Since burbot are winter spawners, and winter monitoring data has shown that burbot utilize the mainstem Susitna River more than was formerly believed during the assumed spawning period, burbot may spawn in the mainstem as well as tributaries and sloughs. Although (Morrow 1980) indicates that burbot are generally sedentary, our radiotelemetry and catch data from the past two winters indicate that burbot migrate considerable distances to and from suspected spawning grounds. The burbot catch data also indicates that the spawning movement begins during September in the Susitna River (ADF&G, 1983b). Until this winter, the duration of the migration and the timing of spawning was not known. Monthly surveys conducted during the winter of 1982-1983 however, have since determined that burbot spawn between mid-January and early February. Monitorin~ of radio-tagged burbot throughout the winter has shown that the pre-spawning migration apparently begins in mid-September and lasts to mid-January. Burbot movements, that may be attributed to post-spawning behavior, begins in early February and lasts until mid-March. -122- Three of the six radio-tagged burbot in 1982-1983 and all four of the burbot in 1981-1982 showed a post-spawning movement. Although in both years the movement was slight (0.5 -7.0 miles) in all cases but one, the movement was downriver. MacCrimmon (1959) reported that burbot in Lake Simcoe, Ontario, after spawning in the lake, moved up into tributaries. Ground surveys conducted after the spawning period (late February to mid-March) indicated that burbot inhabit areas of different depths and water velocities. In areas where the radio-tagged burbot were located, water depths ranged from only one foot to 15 feet and water velocities were as high as 2.5 feet per second (ADF&G 1983c). Although radio-tagged burbot inhabited areas of different flows and depths, it appeared that during both years they were in areas of high conductivity. Since high conductivities often indicate areas of upwelling, it is possible that burbot prefer these areas. The high catches of incidental burbot in areas where radio-tagged fish were over wintering, also suggests that burbot concentrate in specific areas to overwinter. 5.4.3 Arctic grayling above Devil Canyon Results obtained from radio-tagged Arctic grayling were extremely variable due to the high incidence of radio-tag implantation injuries and radio-tag failures. Since no previous Arctic grayling radio -123- telemetry studies were known to have been undertaken, it was decided that only the largest grayling (greater than 370 mm) would be selected for radio-tagging. It appears that even with this size restriction that radio implantation was too stressful for some Arctic grayling. In future radio-tagging programs of Arctic grayling, it is recommended that a smaller diameter tag (maximum-12mm) be used for implantation. The high incidence of radio-tag failures (32 percent) that occurred within 15 days of the date that they were implanted was not anticipated. Field tests in which· transmitters were immersed in water for 48 hours proved to be insufficient to determine whether transmitters would perform in the field. Decreasing water temperatures in September from 6°C to ooc appear to be responsible for radio-tag failures. Future tagging programs should subject transmitters to both water immersion and temperature tests. Information on Arctic grayling movements and overwintering behavior were obtained from 15 radio-tagged Arctic grayling. The timing of downstream movement from tributaries into overwintering areas of the mainstem Susitna by radio-tagged Arctic grayling (late September -early October) was slightly later than the peak movement of the Arctic grayling into the Susitna River, as indicated by a decline in hook and line catch per unit effort in tributaries during September (AOF&G 1983d). Likewise, the majority of Arctic grayling in the Chena, Goodpaster and Chatanika river systems migrate from tributaries in September (Armstrong 1982). Since 12 of the 15 successfully radio-tagged grayling were tagged in -124- mid-September or later, it appears that these fish represented the end of Arctic grayling migration from tributaries to the mainstem. The fall movement of all but two radio-tagged Arctic grayling into the Susitna River support the findings of 1981 and 1982 grayling sampling which showed a fall outmigration from tributaries to the mainstem {ADF&G 1983d). It appears that most Arctic grayling overwinter in the mainstem Susitna River, downstream of their respective tributaries. Once reach- ing the extent of their downstream migration, movements by radio-tagged grayling were minimal. Radio-tagged Arctic grayling overwintered between rivermile 153.0 and 226.0 with two apparent areas of concentration, one being a 20 mile reach between Deadman Creek {RM 186.7) and Kosina Creek (RM 206.8) and the other between rivermiles 153.0 and 156.0 ·in Devil Canyon. During low flows in March, Arctic grayling were also utilizing areas within Devil Canyon for overwintering habitat. It is questionable whether the presence of a radio-tagged Arctic grayling in Kosina Creek and the Oshetna River well into the winter indicates overwintering in tributaries. These fish may have been dead or injured. Winter water levels in these tributaries are low and probably do not pro vi de sui tab 1 e overwintering habitat. Information concerning the overwintering habitat of Arctic graying in the Deadman Lake system is lacking due to tag failures and tagging injuries of the four grayling radio-tagged in Deadman Creek. -125- 6.0 CONTRIBUTORS PROlJECT LEADERS Resident and Juvenile Anadromous Fisheries Project Aquatic Habitat and Instream Flow Project PRIMARY AUTHORS (1) Text 1.0 Introduction 2.0 Continuous Surface and Intragravel Water Temperature Study 3.0 Salmon Incubation and Emergence Studies -Habitat Component Fisheries Component 4.0 Burbot Spawning in the Susitna River Below Devil Canyon 5.0 Winter Radio Telemetry Investigations of Selected Resident Fish {2) Appendices Appendix A Appendix B Appendix C Appendix 0 REPORT COORDINATORS EDITORS -126- Dana Schmidt Christopher Estes Staff Andrew Hoffmann Leonard Vining James Quinn and Staff Rich Sundet Mark Wenger Rich Sundet Mike Stratton Andrew Hoffmann Leonard Vining Rich Sundet Mark Wenger James Quinn Drew Crawford Stephen Hale Andrew Hoffmann Drew Crawford Stephen Hale Andrew Hoffmann Leonard Vining Dana Schmidt Larry Bartlett Christopher Estes Allen Bingham DATA PROCESSING DATA COLLECTORS -by sections in the text 2.0 Continuous Surface and Intragravel Water Temperature Study 3.0 Salmon Incubation and Emergence Studies -Habitat Component Fisheries Component 4.0 Burbot Spawning in the Susitna River Below Devil Canyon 5.0 Winter Radio Telemetry Investigations of Selected Resident Fish DRAFTING TYPING -127- Allen Bingham Kathrin Zosel Cami 11 e Stephens Theresa Keklak Tim Quane E. Woody Tri hey Jody 111iller Pat Morrow Tommy Withrow Leonard Vining Kathy Sheehan Don Seagren . Rick Sinnott Kathrin Zosel Kent Roth Mike Stratton Dan Gray James Quinn Paul Suchanek Rich Sundet Doug Lang Paul Suchanek Rich Sundet Mark Wenger ~~ike Stratton James Mauney Doug Lang James Quinn Sally Donovan Ann Reilly Peggy Skeers Lynne Watson 7.0 ACKNOWLEDGEMENTS Funding for this study was provided by the State of Alaska, Alaska Power Authority. -128- 8.0 LITERATURE CITED Acres American, Inc. 1980. Susitna Hydroelectric Project Plan of Study. Prepared for Alaska Power Authority. Anchorage, Alaska. 1982. Susitna Hydroelectric Project, Federal Energy Regulatory Commission (FERC) License Application, Exhibit E, Draft. Anchorage, Alaska. Alaska Department of Fish and Game (ADF&G). 1981a. Aquatic habitat and instream flow project. Phase I. Final Draft. Prepared for Acres American Inc., by the Alaska Department of Fish and Game/Susitna Hydro Aquatic Studies Program. Anchorage, Alaska. 1981b. Resident fish investigations on the lower Susitna River. Phase I. Final Draft. Prepared for Acres American, Inc., by Alaska Department of Fish and Game/Susitna Hydro Aquatic Studies Program. Anchorage, Alaska. 1981c. Adult anadromous fisheries project. Phase I. Final Draft. Subtask 7 .10. Prepared for Acres American, Inc., by the Alaska Department of Fish and Game/Susitna Hydro Aquatic Studies Program. Anchorage, Alaska. -129- 1981d. Aquatic Studies Procedures Manu a 1. Phase I. Fi na 1 Draft. Alaska Department of Fish and Game/Susitna Hydro Aquatic Studies Program. Anchorage, Alaska. 1982. Aquatic Studies Procedures Manual. Phase II Final Draft. Alaska Department of Fish and Game/Sus i tna Hydro Aquatic Studies Program. Anchorage, Alaska. 1983a. Adult anadromous fish studies, 1982. Volume 2 of Phase II Final Report. Alaska Department of Fish and Game/Susitna Hydro Aquatic Studies Program. Anchorage, Alaska. 1983b. Resident and juvenile anadromous fish studies on the Susitna River below Devil Canyon, 1982. Volume 3 of Phase II Basic Data Report. Alaska Department of Fish and Game/ Susitna Hydro Aquatic Studies Program. Anchorage, Alaska. 1983c. Aquatic habitat and instream flow studies, 1982. Volume 4 of Phase II Basic Data Report. Alaska Department of Fish and Game/Susitna Hydro Aquatic Studies Program. Anchorage, Alaska. 1983d. Upper Susitna River impoundment studies, 1982. Volume 5 of Phase I Basic Data Report. Alaska Department of Fish and Game/Susitna Hydro Aquatic Studies Program. Anchorage, Alaska. -130- 1983e. Aquatic Studies Procedures Manual. Phase II. Alaska Department of Fish and Game/Susitna Hydro Aquatic Studies Program. Anchorage, Alaska. 1983f. Synopsis of the 1982 aquatic studies and analysis of fish and habitat relationships, Appendices. Phase II Report. Alaska Department of Fish and Game/Susitna Hydro Aquatic Studies Program. Anchorage, Alaska. Alderdice, D.F., W.P. Wickett, and J.R. Brett. 1958. Some effects of temporary exposure to low dissolved oxygen levels on Pacific salmon eggs. Journal of the Fisheries Research Board of Canada. 15:229 - 250. American Public Health Association (APHA). 1980. Standard methods for the examination of water and wastewater. 15th ed. American Public Health Association, Washington, D.C. Arctic Environmental Information and Data Center (AEIDC). 1983. Sus itna Hydroe 1 ectri c Project Aquatic Impact Assessment: Effects of project-related changes in temperature, turbidity, and stream discharge on Upper Susitna salmon resources during June through September, Draft Report. Anchorage, Alaska. -131- Bakkala, R.G. 1970. Synopsis of biological data on the chum salmon, Oncorhnychus keta (Walbaum) 1792. FAO Species Synopsis No. 41. US Fish and Wildlife Service, Bureau of Commercial Fisheries Circular 315. Washington, D.C. Barns, R.A. 1969. Adaptations of sockeye salmon associated with incu- bation in stream gravels. Pages 71-87 in T.G. Northcote (ed.). Symposium on Salmon and Trout in Streams. University of British Columbia. Canada. Baxter, R.M., and P. Glaude. 1980. Environmental effects of dams and impoundment in Canada: experience and prospects. Canadian Bulletin of Fisheries and Aquatic Sciences. Volume 205. Burgner, R.L. 1958. A study of fluctuation in abundance, growth, and survival of early life stages of the red salmon Oncorhynchus nerka (Walbaum). PhD thesis. University of Washington, Seattle, Washington. Childerhose, R.J., and M. Trim. 1979. Pacific salmon. University of Washington Press. Seattle, Washington. Combs, B.D., and R.E. Burrows. 1957. Threshold temperatures for the normal development of chinook salmon eggs. The Progressive Fish Culturist. 19: 3-6. -132- Combs, B.D. 1965. Effect of temperature on the development of salmon eggs. The Progressive Fish Culturist. 27:134-137. Cooper, A.C. 1965. The effects of transported stream sediments on the survival of sockeye and pink salmon eggs and alevins. Internation- al Pacific Salmon Fisheries Commission. Bulletin XVIII. New Westinstar, British Columbia, Canada. Gangmark, H.A., and R.G. Bakkala. 1959. Plastic standpipe for sampling streambed environment of salmon spawn. U.S. Fish and ~/ildlife Service Special Scientific Report -Fisheries No. 261. Hayes, F. R. 1949. The growth, genera 1 chemistry and ternperature relations of salmonid eggs. The Quarterly Review of Biology. 24: 281-308. Heming, T.A. 1982. Effects of temperature on utilization of yolk by chi nook salmon (Oncorhynchus tshawytscha) eggs and a 1 evins. Canadian Journal of Fisheries and Aquatic Sciences. 39: 184-190. Hull, C.H., and N.H. Nie (eds). 1981. SPSS update 7-9: New procedures and facilities for releases 7-9. McGraw-Hill, Inc. New York, New York. Kogl, D. R. 1965. Springs and ground-water as factors affecting sur- vival of chum salmon spawn in sub-arctic stream. MS Thesis. University Alaska, Fairbanks. -133- Lind, O.T. 1974. Handbook of common methods in limnology. C.V. Mosby Company, Saint Louis, Missouri. MacCrimmon, H.R. 1959. Observations on spawning of burbot in Lake Simcoe, Ontario. Journal of Wildlife Management. 23(4):447-449. McNeil, W.J. 1962. Variations in the dissolved oxygen content of intragravel water in four spawning streams of southeastern Alaska. US Fish and Wildlife Service Special Scientific Report -Fisheries No. 402. McNeil, W.J., and J.E. Bailey. 1975. Salmon rancher's manual. Northwest Fisheries Center, Auke Bay Fisheries Laboratory, Nation a 1 Marine Fisheries Service, National Oceanic and Atmospheric Administration. Processed Report. Merritt, M.F., and J.A. Raymond. 1982. Early life history of chum salmon in the Noatak River and Kotzebue Sound. Alaska Department of Fish and Game, Division of Fisheries Rehabilitation Enhancement and Development Report No. 1. Morrow, J.E. 1980. The freshwater fishes of Alaska. Alaska Northwest Publishing Company, Anchorage, Alaska. Nie, N.H., C.H. Hull, J.G. Jenkins, K. Steinbrenner, and D.H. Bent. 1975. SPSS: Statistical package for the social sciences. Second edition, McGraw-Hill, Inc. New York, New York. -134- Olsen, J.C. 1968. Physical environment and egg development in a main- land beach area and an island beach area of Iliamna Lake. Pages 171-197 ~ R.L. Burgner (ed.). Further studies of Alaska sockeye salmon. University of Washington Publication in Fisheries. New Series, Volume III. Peterson, R.H., H.C.E. Spinney, and A. Sreepharan. 1977. Development of Atlantic salmon (Salmo salar) eggs and alevins under varied temperature regimes. Journal of the Fisheries Research Board of Canada. 34: 32-43. Raymond, J.A. 1981. Incubation of fall chum salmon Oncorhynchus keta (Walbaum) at Clear Air Force Station, Alaska. Alaska Department of Fish and Game, Division of Fisheries Rehabilitation Enhancement and Development. Juneau, Alaska. Reiser, D.W., and T.C. Bjornn. 1979. Influence of forest and rangeland management fish habitat requ i rments of anadromous sa 1 mon ids. U.S. Department of Agriculture. Forest Service. Pacific Northwest Forest and Range Experiment Station. PNW-96. Portland, Oregon. Scott, W.B., and E.J. Crossman. 1973. Freshwater fishes of Canada. Fisheries Research Board of Canada Bulletin 198. Ottawa. -135- Sheridan, W.L. 1968. Land use and sediment. the Relation Between Logging and Salmon. and Game. Juneau, Alaska. Pages 62-80 in Forum on Alaska Department of Fish Silver, S.J., C. E. Warren, and P. Doudoroff. 1963. Dissolved oxygen requirements of developing steelhead trout and chinook salmon embryos at different water velocities. Transactions of the American Fisheries Society. 92: 327-343. Stikini, I. 1979. A report to British Columbia Hydro and Power Authority, April 1980. P. McCart Biological Consultants L.T.D. Fisheries Studies. U.S. Geological Survey (USGS). 1982. Provisional summary of 1982 water resources data for Alaska. Vaux, W.G. 1962. Interchange of. stream and intragravel water in a salmon spawning riffle. U.S. Fish and Wildlife Service. No. 405: 1-11. Velsen, F.P.J. 1980. Embryonic development in eggs of sockeye salmon Oncorhynchus nerka. Canadian Special Publication on Fisheries and Aquatic Sciences Volume 49. -136- Wangaard, D.B., and C.V. Burger. 1983. Effects of various temperature regimes on the incubation of Susitna River chum and sockeye salmon. Draft report. U.S. Fish and Wildlife Service. National Fishery Research Center, Anchorage, Alaska. Ze i be 11 , C. D. catfish. 1973. Ultrasonic transmittor for tracking The Progressive Fish Culturist. 35 (1): 28-31. -137- channel APPENDIX A Continuous Surface and Intragravel Temperatures Appendix A consists of continuous temperature data collected by ADF&G for winter studies from August 1982 through May 1983. The data was collected using Omnidata DP212 recorders (datapods). Datapods record both surface and intragravel temperatures. Data from datapods are in Appendix Tables A-1 through A-11. LIST OF APPENDIX A TABLES Page Appendix Table A-1 Datapod intragravel and surface water temperature (C) data summary at Slough SA -Mouth, RM 125.4, Geocode S30N03W308CD (August 1982 through April 1983) ........•....... A-2 Appendix Table A-2 Datapod intragravel and surface water temperature (C) data summary at Slough 8A -Middle, RM 125.6, Geocode S30N03W30BCD (April 1983 through June 1983) .•.......•....... A-ll Appendix Table A-3 Datapod intragravel and surface water temperature (C) data summary at LRX 29, RM 126.1, Geocode S30N03W19DCA (October 1982 through April 1983) ..•.............. A-14 Appendix Table A-4 Datapod intragravel and surface water temperature (C) data summary at Slough 8A -Upper, RM 126.4, Geocode S30N03W20CDD (August 1982 through October 1982 and March 1983 through June 1983) .............•.... A-21 Appendix Table A-5 Datapod intragravel and surface water temperature (C) data summary at Slough 9, RM 128.7, Geocode S30N03W09DBC (August 1982 through November 1982 and March 1983 through June 1983) .................. A-28 Appendix Table A-6 Datapod intragravel and surface water temperature (C) data summary at Slough 11, RM 135.7, Geocode S31N02W30ADC (August 1982 through June 1983) .......................... A-36 Appendix Table A-7 Datapod intragravel and surface water temperature (C) data summary at Susitna River at Gold Creek, RM 136.8, Geocode S30N02W17CDD (October 1982 through January 1983) ...................... A-47 Appendix Table A-8 Datapod intragravel and surface water temperature (C) data summary at Slough 16B, RM 138.0, Geocode S31N02W17AAA (August 1982 through October 1982) ....................... A-51 Appendix Table A-9 Appendix Table A-10 Appendix Table A-ll Datapod intragravel and surface water temperature (C) data summary at Slough 19, RM 140.0, Geocode S31N02WlODBA (August 1982 through November 1982 and January 1983 through May 1983) •.•.....•...•...... Datapod intragravel and surface water temperature (C) data summary at Slough 21 -Mouth, RM 141.8, Geocode S31N02W02AAB (September 1982 through April 1983) ................ . · Datapod intragravel and surface water temperature (C) data summary at Slough 21 -Upper, RM 142.0, Geocode S32N02W36CCC (August 1982 through May 1983) ................... . A-54 A-63 .A-71 This page intentionally left blank. A-1 Appendix Table A-1 Datapod intragravel and surface water temperature (C) data summary, at Slough SA - Mouth, RM 125.4, Geocode S30N03W30BCD. -AUGUST 1982 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 820821 6.4 6.6 6.7 7.8 10.7 14.7 820822 6.5 6.7 6.8 8.0 11.1 14.8 820823 6 .6 6.7 6.8 9.8 11.2 13.8 820824 6.5 6.7 6.8 9.1 10.8 12.9 820825 6.7 6.8 6.8 9.4 10.8 13.2 820826 6.7 6.8 7.0 9.3 11.2 14.8 820827 6.6 6.8 7.1 7.8 11.1 14.6 820828 6.5 6. 7 6.8 8.2 10.0 13.0 820829 6.5 6 .6 6. 7 8.6 9.6 11.2 820830 6.5 6.6 6.6 8.3 8.8 9.9 820831 6.5 6.6 6.7 7. 7 8.5 9.7 MONTHLY VALUE 6.4 7 .1 7. 7 14.8 A-2 Appendix Table A-1 (Continued). -SEPTEMBER 1982 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE -------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 820901 6 .5 6.7 6.7 7. 7 8.9 10.4 820902 6.4 6.5 6.8 7.1 8.4 9.9 820903 6.2 6.3 6.4 7 .3 8.0 8.9 820904 6.2 6.3 6.4 6.4 7.5 9.0 820905 6.1 6.2 6.3 6.3 7.4 8.4 820906 6.2 6.2 6.3 6.5 7.4 7.9 820907 6.2 6.3 6.3 6.8 8.0 9.8 820908 6.2 6.3 6.4 7.5 8.2 8.9 820909 6.3 6.3 6.4 7.3 8.0 9.1 820910 6.2 6.3 6.4 6.9 7.8 8.9 820911 6.1 6.2 6.3 6.3 7.0 7.5 820912 6.0 6.1 6.2 5.3 6 .6 8.5 820913 6.0 6.1 6.2 5.8 6.2 6 .6 820914 6.0 6 .o 6.1 6 .1 6.4 6.8 820915 6.0 6.0 6.1 6 .3 7.0 8.4 820916 5.9 6.0 6 .1 7.3 7.6 8.1 820917 5.9 6.0 6.0 6 .6 6.9 7.6 820918 5.8 6.0 6.0 5.5 6.2 6.8 820919 5.8 5.9 6.0 5.6 6.0 6 .6 820920 5.9 . 5.9 6.0 5.6 6.0 6.5 820921 5.9 5.9 6.0 5.4 5.8 6 .3 820922 5.9 6.0 6.0 5.3 5.7 6.5 820923 5.9 6.0 6.1 3.9 4.9 5.9 820924 6.0 6.1 6.1 2.9 4.2 5.4 820925 6.1 6.2 6.3 3.4 4.4 5.1 820926 6 .3 6.3 6.4 4.6 5.0 5.4 820927 6.3 6.4 6.4 4.8 5.2 6.1 820928 6 .3 6.4 6.5 2.9 3.9 4.9 820929 6.4 6.5 6.6 4.1 4.7 5.6 820930 6.4 6.5 6.5 4.5 5.2 6.0 MONTHLY VALUE 5.8 6.2 6.8 2.9 6.5 10.4 ----------------------------------------------------------------- A-3 Appendix Table A-1 (Continued). -OCTOBER 1982 - ----------------------------------------------~------------------INTRAGRAVEL SURFACE WATER DATE --------------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 821001 6.4 6.5 6.5 4.4 4.8 5.3 821002 6.4 6.5 6.5 3.5 4.4 5.6 821003 6.4 6.5 6.5 3.1 4.0 5.2 821004 6.4 6.4 6.5 2.1 3.1 4.6 821005 6.3 6.4 6.5 1.8 2.5 4.2 821006 6.3 6.4 6.4 1.4 2.3 3.3 821007 6.3 6.3 6.4 1.7 2.3 2.7 821008 6.2 6.3 6.3 1.5 2.3 3.5 821009 6 .1 6.2 6.3 1.2 2.3 3.7 821010 6 .1 6.2 6.2 2.4 2.8 3.3 821011 6.0 6.1 6.1 .7 2.0 2.7 821012 6.0 6.0 6.1 .8 1.9 2.9 821013 5.9 6.0 6.1 .9 1.7 2.9 821014 5.8 5.9 6.0 1.5 2.5 4.9 821015 5.8 5.9 5.9 1.3 2.0 3.0 821016 5.6 5.8 5.8 1.0 1.5 1.9 821017 5.6 5.7 5.7 1.1 1.9 2.9 821018 5.5 5.6 5.6 .9 1.9 3.2 821019 5.4 5.5 5.6 1.0 1.7 2.2 821020 5.4 5.5 5.6 1.2 1.9 2.6 821021 5.3 5.4 5.5 1.2 1.5 2~0 821022 5.2 5.4 5.4 1.2 1.5 2.1 821023 5.2 5.3 5.4 1.2 1.6 2.2 821024 5.1 5.2 5.2 1.7 2.2 2.8 821025 5.0 5.1 2.2 2.8 821030 4.2 4.3 2.0 2.4 821031 4.3 4.4 4.5 1.9 2.2 2.5 MONTHLY VALUE 4.2 5.8 6.5 .7 2.4 5.6 ----------------------------------------------------------------- A-4 Appendix Table A-1 (Continued). -NOVEMBER 19 82 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE --------------------------------------MIN MEAN MAX MIN MEAN MAX ----------~----------------------------------------------------- 821101 4.4 4.4 4.5 1.7 2.0 2.2 821102 4.4 4.5 4.6 1.9 2.0 2.3 821103 4.5 4.6 4.6 2.0 2.1 2.3 821104 4.5 4.6 4.6 2 .o 2.2 2.5 821105 4.6 4.6 4.7 2.1 2.3 2.6 821106 4.6 4. 7 4.7 1.9 2.2 2.4 821107 4.6 4.7 4. 7 1.9 2.0 2.2 821108 4.6 4.7 4.7 1.9 2.1 2.4 821109 4.6 4.6 4.7 1.7 2.0 2.3 821110 4.6 4.6 4. 7 1.9 2.0 2.2 821111 4.6 4.6 4.7 1.7 2.0 2.1 821112 4.6 4.6 4. 7 1.8 2.1 2.3 821113 4.6 4.6 4.6 1.6 1.9 2.1 821114 4.6 4.6 4.6 1.7 1.8 2.2 821115 4.6 4.6 4.6 1.7 1.9 2.4 821116 4.5 4.6 4.6 1.8 2.2 2.6 821117 4.4 4.5 4.6 1.6 1.8 2.1 821118 4.3 4.4 4.5 1.7 1.9 2.3 821119 4.2 4.3 4.3 1.7 2.1 2.4 821120 4.0 4.2 4.3 .2 2.0 2.6 821121 2.6 4.0 4.3 0.0 1.3 2.7 821122 3.9 4.0 4.2 1.0 1.8 2.7 821123 4.0 4.1 4.1 .8 2.0 2.8 821124 4.0 4.1 4.2 1.0 1.5 2.5 821125 4.0 4.1 4.1 .6 1.1 1.6 821126 3.9 4.0 4.0 .6 .8 1.0 821127 3.8 3.9 4.0 .6 .8 1.0 821128 3 .6 3.7 3.8 .7 .8 .9 821129 2.5 3.2 3.7 0.0 .8 2.6 821130 1.7 2.3 2.9 0.0 0.0 .1 MONTHLY VALUE 1.7 4.3 4.7 0.0 1.7 2.8 -------------------------------------------------------------~-- A-5 Appendix Table A-1 (Continued). -DECEMBER 1 9 82 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE --------------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 821201 2.1 2.4 2.6 0.0 0.0 .1 821202 1.8 2.1 0.0 .1 821221 -.1 0.0 0.0 0.0 821222 -.1 0.0 .1 -.1 0.0 .1 821223 -.1 0.0 0.0 -.1 0.0 o.o 821224 -.1 o.o .1 -.1 0.0 0.0 821225 0.0 0.0 0.0 -.1 0.0 0.0 821226 -.1 0.0 .1 0.0 0.0 0.0 821227 -.1 0.0 0.0 o.o 0.0 .1 821228 0.0 0.0 0.0 0.0 0.0 0.0 821229 0.0 0.0 0.0 0.0 0.0 0.0 821230 0.0 0.0 0.0 0.0 0.0 .1 821231 -.1 0.0 0.0 0.0 0.0 .1 MONTHLY VALUE -.1 2.6 -.1 .1 A-6 Appendix Table A-1 (Continued). -JANUARY 1983 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE ------------------- -------------------MIN MEAN MAX MIN MEAN MAX ----------------------------~----------------------------------- 830101 -.1 0.0 0.0 0.0 0.0 .1 830102 -.1 0.0 0.0 0.0 <.OS .1 830103 -.1 0.0 0.0 0.0 0.0 0.0 830104 -.1 0.0 0.0 -.1 0.0 0.0 83010S -.1 o.o 0.0 -.1 0.0 o.o 830106 -.1 0.0 0.0 -.1 0.0 0.0 830107 -.1 0.0 0.0 -.1 0.0 .1 830108 -.1 0.0 0.0 -.1 0.0 .1 830109 -.1 0.0 0.0 -.1 0.0 .1 830110 -.1 0.0 0.0 -.1 0.0 .1 830111 -.1 0.0 o.o -.1 0.0 .1 830112 -.1 0.0 0.0 -.1 0.0 0.0 830113 -.1 0.0 0.0 -.1 o.o 0.0 830114 -.1 0.0 0.0 -.1 o.o .1 83011S -.1 o.o 0.0 -.1 0.0 .1 830116 -.1 0.0 0.0 0.0 0.0 .1 830117 -.1 -.1 0.0 0.0 0.0 .1 830118 -.1 0.0 0.0 0.0 0.0 .1 830119 -.1 0.0 0.0 0.0 0.0 .1 830120 -.1 o.o 0.0 -.1 0.0 0.0 830121 -.1 0.0 0.0 -.1 0.0 .1 830122 -.1 0.0 0.0 -.1 0.0 .1 830123 -.1 0.0 0.0 -.1 0.0 .1 830124 -.1 0.0 0.0 -.1 o.o o.o 83012S -.1 o.o o.o 0.0 0.0 0.0 830126 -.1 0.0 0.0 0.0 0.0 .1 830127 -.1 o.o 0.0 0.0 0.0 .1 830128 -.1 0.0 0.0 o.o 0.0 .1 830129 -.1 0.0 0.0 0.0 0.0 .1 830130 -.1 0.0 0.0 0.0 0.0 .1 830131 -.1 0.0 0.0 0.0 <.OS .1 MONTHLY VALUE -.1 0.0 0.0 -.1 <.OS .1 ----------------------------------------------------------------- A-7 Appendix Table A-1 (Continued). -FEBRUARY 1983 ------------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE --------------------------------------MIN MEAN !>lAX MIN MEAN l>IAX ----------------------------------------------------------------- 830201 -.1 0.0 o.o 0.0 0.0 .1 830202 -.1 0.0 0.0 0.0 0.0 .1 830203 -.1 0.0 0.0 0.0 <.OS .1 830204 -.1 o.o 0.0 0.0 <.OS .1 83020S -.1 0.0 0.0 0.0 <.OS .1 830206 -.1 0.0 0.0 o.o 0.0 .1 830207 -.1 0.0 0.0 0.0 <.OS .1 830208 -.1 0.0 0.0 0.0 0.0 .1 830209 -.1 0.0 0.0 0.0 0.0 .1 830210 -.1 0.0 0.0 0.0 0.0 .1 830211 -.1 0.0 0.0 0.0 0.0 .1 830212 -.1 0.0 o.o 0.0 0.0 .1 830213 -.1 0.0 0.0 0.0 0.0 .1 830214 -.1 0.0 0.0 0.0 <.OS .1 830215 -.1 0.0 0.0 0.0 0.0 .1 830216 -.1 0.0 .1 0.0 o.o .1 830217 -.1 0.0 .1 0.0 <.OS .1 830218 0.0 0.0 .1 0.0 <.OS .1 830219 -.1 0.0 .1 0.0 0.0 .1 830220 0.0 0~0 .1 0.0 <.OS .1 830221 0.0 0.0 .1 0.0 0.0 .1 830222 0.0 0.0 .1 0.0 <.OS .1 830223 0.0 0.0 .1 0.0 .1 .1 830224 0.0 <.OS .1 0.0 .1 .1 83022S o.o 0.0 .1 0.0 <.OS .1 830226 0.0 <.OS .1 0.0 .1 .1 830227 0.0 <.OS .1 o.o .1 .1 830228 0.0 .1 .1 0.0 .1 .1 MONTHLY VALUE -.1 <.OS .1 0.0 <.OS .1 ----------------------------------------------------------------- A-8 Appendix Table A-1 (Continued). -MARCH 1983 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE ---------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 830301 o.o .1 .2 0.0 .1 .1 830302 .1 .1 .• 2 0.0 .1 .1 830303 .1 .1 .2 .1 .1 .2 830304 .1 .2 .2 .1 .1 .2 830305 .1 .2 .3 0.0 .1 .2 830306 .1 .2 .3 .1 .1 .2 830307 .2 .3 .3 .1 .2 .3 830308 .2 .3 .4 .1 .2 .3 830309 .3 .4 .2 .3 .3 830310 .2 .3 .3 830311 .3 .4 830312 .3 .4 .4 830313 .3 .3 .s 830314 .3 .4 .5 830315 .4 .4 .5 830316 .4 .4 .5 830317 .4 .5 .6 830318 .4 .5 .6 830319 .5 .5 .6 830320 .5 .5 .6 830321 .5 .6 .6 830322 .5 .6 .6 830323 .5 .6 .7 830324 .5 .6 .7 830325 .6 .6 .7 830326 .6 .6 .7 830327 .6 .6 .7 830328 .6 .6 .8 830329 .6 .6 .8 830330 .6 .6 .8 830331 .6 .6 .8 MONTHLY VALUE 0.0 .4 0.0 .4 .8 ----------------------------------------------------------------- A-9 Appendix Table A-1 (Continued). -APRIL 1983 - INTRAGRAVEL SURFACE WATER DATE MIN MEAN MAX MIN MEAN MAX 830401 .6 .7 .9 830402 .6 .7 .9 830403 .6 .8 1.0 830404 .7 .7 .9 830405 .7 .7 .9 830406 .7 .9 1.2 830407 .7 1.0 1.5 830408 .7 1.0 1.5 830409 .8 1.0 1.4 830410 .7 1.0 1.6 830411 .7 .9 1.2 830412 .7 .8 1.0 8304l3 .8 1.0 1.6 830414 .9 1.1 1.5 830415 ---.8 1.0 1.4 830416 .8 1.1 1.6 830417 .9 1.2 1.7 830418 .9 1.2 1.8 830419 1.0 1.4 2.1 830420 .8 1.5 2.5 830421 .9 1.6 2.9 830422 1.0 1.5 2.4 830423 1.1 1.4 2.1 830424 1.2 2.0 3.5 830425 1.2 2.2 3.8 830426 1.2 2.2 4.0 830427 1.3 2.4 4.3 830428 1.6 2.1 4.2 MONTHLY VALUE .6 1.3 4.3 A-10 Appendix Table A-2 Datapod intragravel and surface water temperature (C) data summary, at Slough 8A - Middle, RM 125.6, Geocode S30N03W30BCD. -APRIL 1983 - INTRAGRAVEL SURFACE WATER DATE MIN MEAN MAX MIN MEAN" MAX ----------------------------------------------------------------- 830429 830430 MONTHLY VALUE 3.0 3.1 3.0 3 .1 3 .1 3 .1 3.2 3.2 1.8 1.7 1.7 2.9 2.8 4.1 4.5 4.5 ----------------------------------------------------------------- A-ll Appendix'Tab1e A-2 (Continued). -MAY 1983 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE --------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 830501 3o2 3o2 4o4 4o9 830502 3o1 3o2 3o3 2o5 3o5 4o5 830503 3o2 3o2 3o3 2o3 3o4 4o7 830504 3.2 3 o3 3o4 2o0 3o7 5o7 830505 3o3 3o3 3o4 1.8 3o7 6 o1 830506 3 o3 3o3 3o4 1.4 3o7 6o5 830507 3o3 3o3 3o4 1.3 4o0 7o2 830508 3o3 3o4 3o5 1.8 4o5 7o4 830509 3o4 3o5 3o5 2o1 4o5 7o2 830510 3o4 3 o5 3 o6 2o5 4o8 7o0 830511 3 o5 3 o5 3 o6 2o7 5o2 8o0 830512 3o5 3 o6 3o7 3o4 5o4 7o4 830513 3 o6 3 o6 3o7 3o0 5o2 7o6 830514 3 o6 3o6 3 o7 2o8 4o 7 7 o1 830515 3 o6 3 o6 3 o7 2o5 4o2 6o0 830516 3 o6 3 o6 3o7 2o4 4o2 5o7 830517 3o6 3o7 3o7 2o7 4o2 5o9 830518 3 o6 3 o7 3o7 2o5 4o3 6o5 830519 3 o6 3o6 3o7 2o9 4o8 6 o6 830520 3 o6 3 o7 3 0 7 3o0 5o5 8o0 830521 3 o6 3 o7 3o8 3o4 4o9 7o0 830522 3 0 7 3 o7 3o8 3 0 7 5o6 8o5 830523 3o7 3o7 3o8 3 0 7 5o7 7o8 830524 3o8 3o8 3o9 4o1 6o3 9o2 830525 3o8 3o8 3o9 3o8 6o5 9o2 830526 3o8 3o9 3o9 5o1 6o7 8o4 830527 3o8 3o9 4o0 4o4 6o3 8o3 830528 3o8 3o9 4o0 4o5 7o0 9o8 830529 3o8 3o9 4o0 5o6 7o5 9o3 830530 3o9 4o0 4o2 6 0 7 8o3 9o7 830531 4o1 4o2 4o2 6o2 7o6 8o7 MONTHLY VALUE 3.1 3o6 4o2 1.3 5o2 9o8 ----------------------------------------------------------------- A-12 Appendix Table A-2 (Continued). -JUNE 1983 - ----------------------------------------------------------------- DATE 830601 830602 MONTRLY VALUE INTRAGRAVEL MIN MEAN 4.0 4.0 4.0 4.1 MAX 4.2 4.1 4.2 SURFACE WATER MIN MEAN 6.5 5. 9- 5.9 7.9 MAX 9.9 9.1 9.9 ---------------------------------------------- 1\-13 Appendix Table A-3 Datapod intragravel and surface water temperature (C) data summary, at LRX 29, RM 126.1, Geocode S30N03W19DCA -OCTOBER 1982 - INTRAGRAVEL SURFACE WATER DATE MIN MEAN MAX MIN MEAN MAX -------------------------------------------------------~--------- 821030 821031 MONTHLY VALUE 1.7 1.8 1.7 1.9 A-14 1.9 2.1 2.1 .2 .2 .2 .s .6 .7 .7 Appendix Table A-3 (Continued). -NOVEMBER 1982 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE ------------------- -------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 821101 1.9 2.0 2.1 .4 .5 .7 821102 1.7 1.9 2.0 .3 .4 .5 821103 1.7 1.8 1.9 .3 .5 .7 821104 1.5 1.7 1.8 0.0 .2 .3 821105 1.5 1.5 1.6 .2 .3 .4 821106 1.5 1.6 1.6 0.0 .2 .4 821107 1.5 1.5 1.6 -.1 <.05 .1 821108 1.4 1.5 1.6 -.1 .1 .3 821109 1.4 1.5 1.6 -.1 <.05 .3 821110 1.4 1.5 1.5 .2 .3 821111 1.5 1.5 1.6 821112 1.5 1.5 1.5 821113 1.5 1.5 1.5 821114 1.4 1.5 1.5 821115 1.4 1.5 1.5 821f16 1.5 1.5 1.6 821117 1.6 1.6 1.7 821118 1.6 1.6 1.7 821119 1.6 1.6 1.7 821120 -.1 1.5 1.7 --~ 821121 0.0 .1 .4 821122 -.1 o.o .2 821123 -.1 -.1 0.0 821124 -.1 o.o 0.0 821125 -.1 o.o 0.0 821126 -.1 -.1 0.0 821127 -.1 -.1 0.0 821128 -.1 o.o o.o 821129 -.1 o.o 0.0 821130 -.1 o.o 0.0 MONTHLY VALUE -.1 1.1 2.1 -.1 .7 ----------------------------------------------------------------- A-15 Appendix Table A-3 (Continued). -DECEMBER 1982 -----------------------------------------------INTRAGRAVEL SURFACE WATER DATE -------------------------- MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 821201 -.1 o.o 0.0 821202 -.1 0.0 0.0 821203 -.1 0.0 0.0 821204 -.1 0.0 0.0 821205 -.1 0.0 0.0 821206 -.1 -.1 0.0 821207 -.1 -.1 0.0 821208 -.1 -.1 0.0 821209 -.1 -.1 0.0 821210 -.1 -.1 0.0 821211 -.1 -.1 -.1 821212 -.1 0.0 0.0 821213 -.1 0.0 0.0 821214 -.1 o.o 0.0 821215 -.1 0.0 0.0 821216 -.1 0.0 0.0 821217 0.0 o.o 0.0 821218 -.1 0.0 0.0 821219 -.1 0.0 0.0 821220 0.0 o.o 0.0 821221 -.1 0.0 0.0 821222 -.1 0.0 0.0 821223 0 .o 0.0 0 .o 821224 0.0 0.0 0.0 821225 0.0 0.0 0.0 821226 -.1 0.0 0.0 821227 0.0 0.0 0.0 821228 0.0 0.0 0.0 821229 0.0 0.0 .1 821230 0.0 0.0 0.0 821231 0.0 0.0 0.0 MONTHLY VALUE -.1 0.0 .1 A-16 Appendix Table A-3 (Continued). -JANUARY 1 9 83 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE ---------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 830101 -.1 0.0 0.0 830102 0.0 0.0 0.0 830103 0.0 0.0 0.0 830104 0.0 <.05 .1 830105 0.0 0.0 .1 830106 o.o <.05 .1 830107 0.0 <.05 .1 830108 o.o o.o 0.0 830109 -.1 0.0 .1 830110 0.0 <.05 .1 830111 o.o <.05 .1 830112 0.0 o.o 0.0 830113 0.0 o.o 830114 0.0 o.o 830115 -.1 o.o .1 830116 -.1 <.05 .1 830117 0.0 0.0 .1 830118 0.0 0.0 .1 830119 0.0 <.05 .1 830120 0.0 <.05 .1 830121 0.0 <.05 .1 830122 0.0 o.o 0.0 830123 0.0 .1 .1 830124 0.0 <.05 .1 830125 0.0 0.0 .1 830126 0.0 <.05 .1 830127 o.o ·.1 .1 830128 0.0 .1 .1 830129 0.0 <.05 .1 830130 0.0 0.0 0.0 830131 0.0 <.05 .1 MONTHLY VALUE -.1 <.05 .1 --------------------------------------------------- A··l7 Appendix Table A-3 (Continued). -FEBRUARY 1983 - -----------------------------------------------------------------INTRAGRA VEL SURFACE WATER DATE --------------------------------------MIN MEAN MAX MIN MEAN MAX -------------------------------------------------------------- 830201 0.0 .1 .1 830202 0.0 <.OS .1 830203 0.0 .1 .1 830204 0.0 .1 .1 83020S 0.0 <.OS .1 830206 o.o .1 .1 830207 .1 .1 .1 830208 .1 .1 .1 830209 o.o .1 .1 830210 0.0 <.OS .1 830211 0.0 .1 .1 830212 0.0 <.OS .1 830213 0.0 0.0 0.0 830214 0.0 0.0 0.0 83021S 0.0 0.0 0.0 830216 0.0 0.0 0.0 830217 o.o 0.0 0.0 830218 0.0 0.0 0.0 830219 0.0 0.0 0.0 830220 0.0 .1 .1 830221 0.0 .1 .1 830222 0.0 .1 .1 830223 .1 .1 .1 830224 0.0 .1 .1 83022S .1 .1 .1 830226 .1 .1 .1 830227 .1 .1 .1 830228 .1 .1 .1 MONTHLY VALUE 0.0 .1 .1 A-18 Appendix Table A-3 (Continued). -MARCH 1983 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE ---------------------------------MIN MEAN MAX MIN MEAN MAX ~--------------------------------------------------------------- 830301 .1 .1 .1 830302 .1 .1 .1 830303 .1 .1 .1 830304 .1 .1 .1 830305 .1 .1 .1 830306 .1 .1 .1 830307 .1 .1 .1 830308 .1 .1 .1 830309 .1 .1 .1 830310 .1 .1 .1 830311 .1 .1 .1 830312 .1 .1 .1 830313 .1 .1 .1 830314 .1 .1 .1 830315 .1 .1 .1 830316 .1 .1 .1 830317 .1 .1 .1 830318 o.o .1 .1 830319 .1 .1 .1 830320 .1 .1 .1 830321 .1 .1 .1 830322 o.o .1 .1 830323 .1 .1 .1 830324 .1 .1 .1 830325 .1 .1 .1 830326 .1 .1 .1 830327 .1 .1 .1 830328 .1 .1 .1 830329 .1 .1 .1 830330 .1 .1 .1 830331 0.0 .1 .1 MONTHLY VALUE o.o .1 .1 A-19 Appendix Table A-3 (Continued). -APRIL 1983 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE --------------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 830401 0.0 .1 .1 830402 0.0 .1 .1 830403 o.o .1 .2 830404 .1 .1 .1 830405 .1 .1 .1 830406 .1 .1 .1 830407 .1 .1 .1 830408 .1 .1 .1 830409 .1 .1 .1 830410 .1 .1 .1 830411 .1 .1 .1 830412 .1 .1 .1 830413 .1 .1 .1 830414 .1 .1 .1 830415 .1 .1 .1 830416 .1 .1 .1 830417 .1 .1 .2 830418 .1 .2 .2 830419 .1 .1 .2 830420 0.0 .1 .1 830421 0.0 <.05 .1 830422 0.0 .1 .1 830423 0.0 .1 .1 830424 .1 .1 .1 830425 o.o .1 .1 830426 0.0 .1 .1 830427 .1 .1 .2 830428 .1 .1 MONTHLY VALUE o.o .1 .2 A-20 Appendix Table A-4 Datapod intragravel and surface water temperature (C) data summary, at Slough 8A - Upper, RM 126.4, Geocode S30N03W20CDD. -AUGUST 1982 - INTRAGRAVEL SURFACE WATER DATE MIN MEAN MAX MIN MEAN MAX 820821 4.7 4. 7 4.8 5.0 6.3 9.4 820822 4.7 4.8 4.8 4.9 6.1 9.3 820823 4.7 4.8 4.8 5.6 6.4 7.7 820824 4.7 4.8 4.8 5.4 6.3 8.5 820825 4.7 4.8 4.8 5.5 6.3 8.6 820826 4. 7 4.8 4.9 5.5 6.5 9.7 820827 4.7 4.8 4.9 4.9 6.0 9.2 820828 4.8 4.8 4.9 5.1 6~0 8.2 820829 4.8 4.9 4.9 5.6 6.0 6 .5 820830 4.9 4.9 4.9 5.7 5.9 6.4 820831 4.8 4.9 4.9 5.5 5.8 6 0 7 MONTHLY VALUE 4.7 4.9 4.9 9.7 A-21 Appendix Table A-4 (Continued). -SEPTEMBER 1982 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE --------------------------------MIN MEAN MAX MIN MEAN MAX ------------------------------------------- 820901 4.8 4.9 5.0 5.6 6.2 7 .1 820902 4.8 4.9 5.0 5.8 6.3 7.6 820903 4.9 4.9 5.0 5.9 6.3 7.0 820904 4.9 4.9 5.0 5.5 6.1 7.1 820905 4.9 5.0 5.0 5.2 6.0 6.8 820906 4.9 5.0 5.1 5.4 5.9 6.4 820907 5.0 5.1 5.1 5.5 6.0 7.3 820908 5.1 5.1 5.2 5.5 5.9 6.5 820909 5.1 5.2 5.2 5.5 5.9 6.7 820910 5.1 5.2 5.3 5.4 5.9 6.5 820911 5.2 5.3 5.3 5.1 5.7 6.2 820912 5.2 5.3 5.3 5.0 5.6 6.8 820913 5.2 5.2 5.3 5.3 5.6 6.2 820914 5.2 5.2 5.3 5.5 5.9 6.3 820915 5.2 5.2 5.3 5.7 6.4 7 0 7 820916 5.2 5.3 5.3 5.9 6 0 7 8.3 820917 5.2 5.2 5.3 5.8 6 .1 7.0 820918 5.1 5.2 5.2 5.3 5.8 6.5 820919 5.1 5.1 5.2 5.5 5.7 6.1 820920 5.1 5.1 5.2 5.5 5.7 6.2 820921 5.1 5.1 5.2 5.3 5.6 6.0 820922 5.0 5.1 5.1 5.2 5.6 6.5 820923 5.0 5.1 5.1 4.7 5.3 6.8 820924 5.0 5.1 5.1 4.3 5.1 6.2 820925 5.0 5.0 5.1 4.7 5.2 5.8 820926 5.0 5.0 5.1 5.2 5.3 5.8 820927 4.9 5.0 5.0 4.9 5.3 6.0 820928 4.9 4.9 5.0 4.4 5.0 5.5 820929 4.9 4.9 5.0 5.0 5.3 5.9 820930 4.8 4.9 4.9 5.0 5.4 6.0 MONTHLY VALUE 4.8 5.1 5.3 4.3 5.8 8.3 ----------------------------------------------------------------- A-22 Appendix Table A-4 (Continued). -OCTOBER 1982 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE ---------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 821001 4.8 4.9 4.9 4.9 5.2 5.6 821002 4.8 4.8 4.9 4.7 5.2 5.9 821003 4.7 4.8 4.8 4.7 5.1 5.9 821004 4.7. 4.8 4.8 4.4 4.9 6 .o 821005 4.7 4.7 4.8 4.3 4.8 5.8 821006 4.6 4.7 4.8 4.3 4.8 5.4 821007 4.7 4.7 4.7 4.5 4.7 5.1 821008 4.7 4.7 4.7 3.9 4.6 5.5 821009 4.7 4.7 4.7 4.0 4.7 5.4 821010 4.7 4.7 4.7 4.4 4.7 5.1 821011 4.6 4.7 4. 7 3.5 4.5 4.9 821012 4.6 4.7 4.7 3.6 4.3 4.8 821013 4.6 4.6 4.7 3.6 4.2 4.6 821014 4.6 4.6 4.7 3.5 4.2 5.2 821015 4.6 4.6 4.7 3.5 4.0 4.8 821016 4.6 4.6 4.7 3.9 4.1 4.3 821017 4.6 4.7 4.7 3.9 4.4 5.3 821018 4.6 4.6 4.7 3.9 4.2 4.8 821019 4.6 4.6 4.6 3.8 4.2 4.5 821020 4.6 4.6 4.7 3.9 4.2 4.7 821021 4.6 4.6 4.7 3.8 4.1 4.4 821022 4.6 4.6 4.6 3.8 4.1 4.4 821023 4.6 4.6 4.6 3.8 4.0 4.3 821024 4.5 4.6 4.6 3.7 3.9 4.3 821025 4.5 4.6 3.6 3.8 MONTHLY VALUE 4.5 4.7 4.9 3.5 4.4 6.0 ----------------------------------------------------------------- A-23 Appendix Table A-4 (Continued). -MARCH 1983 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE --------------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 830311 2.7 2.7 2.4 2.7 830312 2.6 2.7 2.7 2.3 2.5 4.2 830313 2.6 2.7 2.7 1.4 2.4 4.6 830314 2.5 2.6 2.7 1.3 2.2 4.0 830315 2.6 2.6 2.7 1.3 2.9 4.6 830316 2.5 2.6 2.7 1.4 2.5 4.5 830317 2.4 2.6 2.7 1.2 2.2 4.5 830318 2.4 2.5 2.7 1.0 1.9 4.6 830319 2.4 2.5 2.7 1.0 1.8 4.6 830320 2.4 2.6 2.7 1.3 2.3 4.3 830321 2.4 2.6 2.8 1.3 2.6 4.6 830322 2.4 2.5 2.7 1.0 2.0 4.3 830323 2.5 2.5 2.7 1.0 2.0 4.4 830324 2.5 2.5 2.7 1.0 2.0 4.6 830325 2.4 2.6 2.8 1.2 2.7 5.5 830326 2.4 2.6 2.8 1.2 2.5 4.6 830327 2.4 2.6 2.8 1.0 2.6 5.7 830328 2.4 2.6 2.9 1.3 3 .1 6.0 830329 2.4 2.6 2.9 1.1 3.0 6.0 830330 2.4 2.6 2.9 1.1 3.0 6.0 830331 2.4 2.7 3.1 1.3 3.2 6.0 MONTHLY VALUE 2.4 2.6 3.1 1.0 2.5 6 .o ----------------------------------------------------------------- A-24 Appendix Table A-4 (Continued). -APRIL 1983 - -----------------------------------------------------------------INTRAGRA VEL SURFACE WATER DATE --------------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 830401 2.5 2.7 3.1 2.3 3.5 6.0 830402 2.5 2.8 3.1 1.1 3.3 6.0 830403 2.6 2.9 4.1 2.3 3.4 6.2 830404 2.6 2.8 3.1 2.6 3.2 4.5 830405 2.5 2.7 3.0 2.6 3.7 5.5 830406 2.7 3.1 4.2 2.3 3.8 7.5 830407 2.8 3.3 4.4 2.4 4.1 7.6 830408 2.8 3.6 4.3 2.3 4.0 7.5 830409 2.7 3.5 4.2 2.9 3.4 5.9 830410 2.7 3.2 4.3 2.7 4.1 7.2 830411 2.7 3.5 4.2 2.7 3.6 5.6 830412 2.4 2.7 4.0 1.1 2.2 4.3 830413 2.4 2.7 4.0 1.4 3.5 6.1 830414 2.7 3.2 4.1 2.3 3.7 6 .1 830415 2.7 3.2 4.1 2.8 3.4 5.9 830416 2.8 3.5 4.4 2.3 4.3 6.1 830417 2.8 3.5 4.3 2.5 3.6 5.8 830418 2.7 3.2 4.1 2.6 3 .5 5.6 830419 2.7 3.2 4.3 2.6 4.2 7.6 830420 2.8 3.6 4.5 2.4 4.3 7.8 830421 2.9 4.0 4.7 2.4 4.6 9.0 830422 3.1 4.3 4.6 2.7 5.1 7.6 830423 3.0 4.1 4.4 2.5 4.2 6 .1 830424 2.8 3.6 4.5 2.3 4.2 9.4 830425 2.8 3.5 4.4 2.3 4.2 8.9 830426 2.6 3.4 4.3 2.4 4.3 7.6 830427 2.5 2.9 4.1 2.4 4.4 7.3 830428 2.5 3.1 2.5 3.9 830429 2.4 2.5 2.7 1.8 3.1 5.6 830430 2.3 2.5 2.7 1.5 3.0 6.5 MONTHLY VALUE 2.3 3.2 4.7 1.1 3.8 9.4 ----------------------------------------------------------------- A-25 Appendix Table A-4 (Continued). -MAY 1983 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE --------------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 830501 2.3 2.4 2.6 1.3 2.7 5.7 830502 2.2 2.4 2.5 1.7 2.5 4.0 830503 2.2 2.3 2.5 1.6 2.4 3.6 830504 2.2 2.4 2.5 1.6 2.5 4.6 830505 2.3 2.4 2.5 1.7 2.6 4.8 830506 2.4 2.5 2.6 1.7 2.7 5.0 830507 2.4 2.5 2.7 1.7 2.8 5.2 830508 2.5 2.5 2.7 1.8 3.0 5.3 830509 2.4 2.5 2.7 2.0 3.1 5.4 830510 2.5 2.6 2.7 2.0 3.0 5.3 830511 2.5 2.6 2.8 2.0 3.2 5.5 830512 2.5 2.7 2.8 2.2 3.1 4.8 830513 2.6 2.7 2.8 2.2 3.1 5.4 830514 2.6 2.7 2.8 2.3 3.0 4.6 830515 2.6 2.7 2.8 2.2 3.0 4.2 830516 2.6 2.7 2.9 2.2 3.0 4.3 830517 2.7 2.8 2.9 2.4 3.1 4.1 830518 2.7 2.8 2.9 2.4 3.3 4. 7 830519 2.8 2.9 3.0 2.4 3.4 4.9 830520 2.8 2.9 3.0 2.4 3.6 5.7 830521 2.9 3.0 3.1 2.6 3.3 4.4 830522 2.9 3.0 3.1 2.8 3.8 5.9 830523 2.9 3.0 3 .2 2.8 3 .7 6.0 830524 2.9 3.1 3.3 2.8 3.9 6.5 830525 3.0 3.1 3.3 2.6 3.9 6.2 830526 3.0 3.1 3.3 3 .1 4.0 6.4 830527 3.0 3.2 3.3 2.8 3.8 5.8 830528 3.0 3.2 3.3 2.8 3.9 5.6 830529 3.1 3.2 3.4 2.9 4.0 5.4 830530 3.2 3.2 3.3 3.3 3.9 5.0 830531 3.2 3.2 3.3 3.4 3.9 5.1 MONTHLY VALUE 2.2 2.8 3.4 1.3 3.3 6.5 ----------------------------------------------------------------- l\-26 Appendix Table A-4 (Continued). DATE 830601 830602 MONTHLY VALUE -JUNE 1983 - INTRAGRAVEL MIN 3 .1. 3.2 3.1 MEAN 3.3 MAX 3.4 3.4 3.4 A-27 SURFACE WATER MIN 3.2 3.2 3.2 MEAN 4.3 MAX 6. 7 3.9 6.7 Appendix Table A-5 Datapod intragravel and surface water temperature (C) data summary at Slough 9, RM 128.7, Geocode S30N03W09DBC. -AUGUST 1982 - INTRAGRAVEL SURFACE WATER DATE MIN MEAN MAX MIN MEAN MAX 820821 3.4 3.7 5.1 12.0 820822 3.4 3.5 3.6 5.2 8.4 12.1 820823 3.5 3.5 3.7 6.9 8.7 10.9 820824 3.4 3.5 3.7 6.5 8.5 ll.5 820825 3.5 3.5 3.6 6.7 8.4 10.4 820826 3.4 3.5 3.7 6.0 8.4 12.1 820827 3.3 3.5 3.7 4.5 8.1 11.6 820828 3.4 3.5 3.7 5.5 7.5 10.2 820829 3.4 3.5 3.7 6.5 7 .6 8.7 820830 3.6 3.6 3.7 6 .3 7.1 8.0 820831 3.5 3.6 3.8 5.7 6.8 8.4 MONTHLY VALUE 3.3 3.8 4.5 12.1 A-28 Appendix Table A-5 (Continued). -SEPTEMBER 1982 - -----------------------------------------------------------------INTRAGRA VEL SURFACE WATER DATE --------------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 820901 3.5 3.6 3.7 6 .3 8.0 10.6 820902 3.4 3.5 3.6 6 .1 7.5 9.7 820903 3.4 3.5 3.6 6.2 7.1 8.0 820904 3.4 3.5 3.5 5.6 6.9 9.1 820905 3.4 3.5 3.5 5.3 6.4 7. 7 820906 3.4 3.4 3.5 5.5 6.4 7.7 820907 3.4 3.5 3.5 5.7 6.8 8.3 820908 3.4 3.5 3.5 5.7 6.6 7.7 820909 3.4 3.4 3.5 5.6 6.6 8.2 820910 3.3 3.4 3.5 5.5 6.6 8.0 820911 3.3 3.4 3.4 5.0 5.9 7.1 820912 3.3 3.3 3.4 4.1 5.7 7.4 820913 3.3 3.4 3.4 4.9 5.7 6.7 820914 3.4 3.4 3.5 5.9 6.4 7.2 820915 3.4 3.5 3.6 6.4 6.8 7.5 820916 3.5 3.5 3.6 7.0 7.3 7.4 820917 3.4 3.5 3.5 6.2 6.6 7.1 820918 3.4 3.4 3.5 5.6 5.9 6.3 820919 3.4 3.4 3.5 5.5 5.6 5.9 820920 3.4 3.4 3.5 5.6 5.9 6.4 820921 3.4 3.5 3.5 6.0 6.3 6. 7 820922 3.4 3.4 3.5 5.5 6.1 7.0 820923 3.4 3.4 3.5 4.4 5.1 6.4 820924 3.3 3.4 3.5 2.9 4.0 5.2 820925 3 .3 3.4 3.5 3 .3 4.2 4.9 820926 3.4 3.5 3.5 4.2 4.6 5.0 820927 3.4 3.5 3.5 4.5 4.8 5.5 820928 3.3 3.4 3.5 3 .1 3.8 4.5 820929 3.4 3.5 3.5 4.0 4.4 5.0 820930 3.4 3.5 3.5 4.1 4.5 4.9 MONTHLY VALUE 3.3 3.4 3.7 2.9 5.9 10.6 ----------------------------------------------------------------- A-29 Appendix Table A-5 (Continued). -OCTOBER 1982 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE --------------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 821001 3.4 3.5 3.5 3.9 4.2 4.5 821002 3.4 3.4 3.5 3.6 3.9 4.5 821003 3 .3 3.4 3.5 3.4 3.7 4.1 821004 3.2 3.3 3.4 2.9 3.2 3.8 821005 3 .2 3.3 3.3 2.4 2.8 3.2 821006 3.1 3.2 3.3 2.2 2.7 3.2 821007 3.2 3.3 3.3 2.8 3.0 3 .1 821008 3.2 3.3 3 .3 2.6 3.0 3.4 821009 3.2 3.2 3.3 2.4 2.9 3.6 821010 3.2 3.3 3.3 2.9 3.2 3.5 821011 3.2 3.2 3.3 2.6 2.9 3.2 821012 3.1 3.2 3.2 2.2 2.5 3.0 821013 3 .1 3.2 3.2 2.5 2.7 3.0 821014 3 .1 3.2 3.2 2.3 2.6 3.1 821015 3 .1 3.1 3.2 1.7 2.2 2.8 821016 3.1 3.2 3.2 2.1 2.2 2.4 821017 3.1 3.1 3.2 2.2 2.6 3.3 821018 3 .1 3.1 3.2 1.9 2.4 2.8 821019 3.1 3.2 3.2 2.1 2.5 2.7 821020 3.1 3.1 3.2 2.3 2.5 2.9 821021 3.0 3.0 3.2 1.6 1.9 2.3 821022 2.9 3.0 3.1 1.5 1.7 2.1 821023 2.9 3.0 3.0 1.4 1.6 1.8 821024 2.8 3.0 3.0 1.5 1.6 1.9 821025 2.8 2.9 3.0 1.4 1.5 1.7 821026 2.8 2.8 2.9 1.3 1.3 1.5 821027 2.6 2.7 2.8 1.2 1.2 1.3 821028 2.5 2.6 2.7 1.0 1.2 1.2 821029 2.4 2.5 2.6 1.0 1.1 1.1 821030 2.5 2.5 2.6 1.1 1.1 1.2 821031 2.6 2.6 2.6 1.1 1.1 1.2 MONTHLY VALUE 2.4 3.1 3.5 1.0 2.3 4.5 ----------------------------------------------------------------- A-30 Appendix Table A-5 (Continued). -NOVEMBER 19 82 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE --------------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 821101 2.6 2.6 2.7 1.2 1.3 1.6 821102 2.7 2.8 2.8 1.6 1.8 2.1 821103 2.8 2.8 2.8 1.4 1.7 2.1 821104 2.8 2.8 2.9 1.6 1.8 2.1 821105 2.8 2.8 2.9 1.5 1.7 2.0 821106 2.8 2.8 2.9 1.4 1.5 1.8 821107 2.7 2.7 2.8 1.3 1.3 1.4 821108 2.6 2.7 2.7 1.2 1.3 1.3 821109 2.6 2.7 2.7 1.2 1.3 1.4 821110 2.7 2.7 2.7 1.4 1.5 1.5 821111 2.6 2.6 2.7 1.1 1.3 1.5 821112 2.6 2.7 2.8 1.5 1.6 1.9 821113 2.8 2.8 2.8 1.6 1.8 2.0 821114 2.8 2.8 2.9 1.7 1.9 2.2 MONTHLY VALUE 2.6 2.9 1.1 2.2 ----------------------------------------------------------------- A-31 Appendix Table A-5 (Continued). -MARCH 1983 ------------------------------------------------------ INTRAGRAVEL SURFACE WATER DATE --------------------------------------MIN MEAN MAX MIN MEAN MAX -----------------------------------~---------------------------- 830318 3.2 3 .3 2.3 3.0 830319 3.1 3.2 3.3 1.6 2.2 3.0 830320 3.2 3.2 3.4 1.9 2.4 3.3 830321 3.2 3.3 3.4 1.9 2.5 3.4 830322 3.1 3.2 3.4 1.7 2.4 3 .3 830323 3.1 3.2 3.4 1.7 2.3 3.3 830324 3.2 3.2 3.4 1.8 2.4 3.3 830325 3.2 3.3 3.4 2.0 2.7 3.6 830326 3.2 3.3 3.4 1.8 2.6 3.4 830327 3.1 3.3 3.4 1.6 2.4 3.4 830328 3.2 3.3 3.4 1.8 2.5 3.7 830329 3.2 3.3 3.4 1.7 2.6 3.8 830330 3.2 3.3 3.5 1.7 2.7 3.8 830331 3.2 3.4 3.5 1.9 2.9 4.3 MONTHLY VALUE 3.1 3.5 1.6 4.3 ----------------------------------------------------------------- A-3-2 Appendix Table A-5 (Continued). -APRIL 1983 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE --------------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 830401 3.2 3.4 3.5 1.9 3.0 4.3 830402 3.2 3.4 3.5 1.9 3.0 4.4 830403 3.2 3.4 3.5 1.9 3.0 4.4 830404 3.3 3.4 3.5 2.6 3.1 3.8 830405 3.3 3.4 3.4 2.5 3.0 3 .6 830406 3.3 3.4 3.5 2.4 3.3 4.5 830407 3.3 3.5 3.6 2.6 3.6 4.9 830408 3.3 3.5 3.6 2.5 3.5 4.6 830409 3.3 3.5 3.5 2.6 3.3 4.3 830410 3.2 3.4 3.5 2.0 3.2 4. 7 830411 3.2 3.4 3.5 2.0 2.8 3.5 830412 3.2 3.3 3.5 2.1 2.7 3.5 830413 3 .3 3.4 3.5 2.5 3.4 4.7 830414 3.3 3.5 3.5 2.8 3.5 4.5 830415 3.3 3.5 3.5 2.5 3.3 4.1 830416 3.3 3.4 3.6 2.8 3.7 5.0 830417 3.3 3.5 3.6 2.4 3.5 4.5 830418 3.3 3.5 3.5 2.4 3.4 4. 9 830419 3.4 3.5 3.6 3.1 3.9 5.1 830420 3.4 3.5 3.6 2.7 4.1 5.7 830421 3.4 3.5 3.6 2.8 4.3 5.9 830422 3.4 3.5 3.6 3.2 4.2 5.3 830423 3.4 3.5 3.6 3.4 4.3 5.0 830424 3.4 3.5 3.7 3.4 4.8 6.7 830425 3.4 3.6 3.7 3.2 4.8 6.6 830426 3.4 3.6 3.7 3.0 4.6 6.3 830427 3.4 3.6 3.7 3.0 4.7 6.6 830428 3.4 3.6 3.7 3.3 4.2 5.9 830429 3 .5 3.6 3.7 3.6 5.7 8.8 830430 3.4 3.5 3.7 2.2 5.7 10.4 MONTHLY VALUE 3.2 3.5 3.7 1.9 3.8 10.4 ----------------------------------------------------------------~ A-33 Appendix Table A-5 (Continued). -MAY 1983 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE --------------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 830501 3.4 3.5 3.7 1.9 5.2 9.7 830502 3.4 3.5 3.6 3.4 5.1 7.6 830503 3.4 3.5 3.6 2.8 4.4 6.9 830504 3.4 3.5 3.5 2.1 4.4 7.8 830505 3.4 3.5 3.5 .6 2.1 4.1 830506 3.3 3.3 3.4 .2 .8 3.4 830507 3.1 3.1 3.3 0.0 .3 .9 830508 2.8 3.0 3.1 0.0 .4 .9 830509 2.9 3.3 3.5 .6 3.4 7 .1 830510 3.3 3.5 3.7 2.1 4.5 7.7 830511 3.4 3.5 3.7 2.1 4.8 8.5 830512 3.4 3.5 3.8 2.7 4.9 8.0 830513 3.4 3.5 3.7 2.5 4.8 8.5 830514 3.4 3.5 3.7 2.8 4.9 8.5 830515 3.4 3.5 3.7 2.5 4.6 7.2 830516 3.3 3.5 3.7 2.2 3.8 6.0 830517 3.4 3.5 3.6 1.7 3.6 5.9 830518 3.4 3.5 3.6 2.4 4.3 7 .1 830519 3.4 3.5 3.7 2.8 4.8 7 .1 830520 3.4 3.6 3.8 2.8 5.5 8.7 830521 3.5 3.6 3.8 3.5 5.1 7.2 830522 3.5 3.5 3.7 3.7 5.6 8.2 830523 3 .5 3.5 3 .7 3.6 5.5 8.1 830524 3.5 3.6 3.8 3.7 6.3 9.6 830525 3.5 3.6 3.8 3.1 5.8 8.3 830526 3.5 3.6 3.8 4.5 6.0 8.0 830527 3.5 3.6 3.8 3.8 6.0 8.8 830528 3.5 3.7 3.9 3.7 6.4 9.0 830529 3.6 3.7 3.9 4.5 6.9 9.3 830530 3.8 4.0 4.2 7.2 8.4 10.0 830531 3.9 4.0 4.2 7. 7 8.1 8.5 MONTHLY VALUE 2.8 3.5 4.2 o.o 4. 7 10.0 ----------------------------------------------------------------- A-34 Appendix Table A-5 (Continued). DATE 830601 830602 MONTHLY VALUE -JUNE 1983 - INTRAGRAVEL MIN MEAN 3.8 3.8 3.8 3.9 MAX 4.0 4.0 4.0 A-·35 SURFACE WATER MIN 7.5 8.0 7.5 MEAN 8.4 MAX 9.6 8.9 9.6 Appendix Table A-6 Datapod intragravel and surface water temperature (C) data summary, at Slough 11, RM 135.7, Geocode S31 NO 2W3 OADC • -AUGUST 1982 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE --------------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 8208.21 3.2 3.3 3.3 4. 7 6.4 9.2 820822 3.2 3.3 3.3 4.9 6.8 9.0 820823 3.2 3.3 3.3 5.9 6.8 8.4 820824 3.2 3.3 3.4 5.5 6.3 8.0 820825 3.2 3.4 3.7 4.3 6.5 8.4 820826 3.6 3.7 4.4 3.5 5.5 7.7 820827 3.4 3.5 3 .6 3.4 3.5 3.8 820828 3.4 3.5 3.5 3.4 3.4 3.5 820829 3.5 3 .5 3.5 3.4 3.4 3.5 820830 3.4 3.5 3.5 3.3 3.4 3.5 820831 3.4 3.4 3.5 3.3 3.4 3.4 MONTHLY VALUE 3.2 4.4 3.3 9.2 A-3C: Appendix Table A-6 (Continued). -SEPTEMBER 1 9 82 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE ------------------------------~-------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------~------ 820901 3.4 3.4 3.5 3 .3 3.4 3.5 820902 3.4 3.5 3.5 3 .3 3.4 3.5 820903 3.4 3.5 3.5 3 .3 3.4 3.5 820904 3.3 3.4 3.5 3 .3 3.4 3.4 820905 3.3 3.4 3.5 3.3 3.4 3.4 820906 3.4 3.4 3.5 3 .3 3.4 3.4 820907 3.3 3.4 3 • .5 3 .3 3.3 3.4 820908 3.4 3.4 3.5 3.3 3.4 3.4 820909 3 .3 3.4 3.5 3.3 3.4 3.4 820910 3.3 3.4 3.4 3.3 3.3 3.4 820911 3.3 3.4 3.4 3.2 3.3 3.3 820912 3.3 3.4 3.4 3.2 3.3 3.4 820913 3 .3 3.3 3.4 3.2 3 .3 3 .3 820914 3.3 3.3 3.4 3.2 3 .3 3 .3 820915 3 .3 3.4 3.4 3.2 3 .3 3 .3 820916 3 .3 3.4 3.4 3.2 3.3 3.4 820917 3.3 3.3 3.4 3.2 3.3 3.4 820918 3.2 3.3 3.4 3.2 3.2 3.3 820919 3.3 3.3 3.3 3.2 3.2 3.2 820920 3.3 3.3 3.4 3.2 3.2 3 .3 820921 3 .3 3.3 3.4 3.2 3.2 3.3 820922 3.2 3.3 3.4 3.2 3.2 3 .3 820923 3.2 3.3 3.4 3.2 3.2 3.3 820924 3.2 3.3 3.4 3.1 3.2 3.3 820925 3.2 3.3 3.3 3.1 3.2 3.2 820926 3.2 3.3 3.3 3.1 3.2 3.2 820927 3 .2 3.3 3.3 3.1 3.2 3.3 820928 3.2 3.3 3.3 3.1 3.2 3.2 820929 3.2 3.3 3.3 3 .1 3.2 3.2 820930 3.2 3 .3 3.4 3.1 3.2 3 .3 MONTHLY VALUE 3.2 3.4 3.5 3.1 3.3 3.5 ----------------------------------------------------------------- A-37 Appendix Table A-6 (Continued). -OCTOBER 1982 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE --------------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 821001 3.2 3.3 3.4 3 .1 3.2 3.3 821002 3.2 3.3 3.3 3.1 3.2 3 .2 821003 3.2 3.3 3.3 3.1 3.2 3.3 821004 3.2 3.3 3.3 3.1 3.2 3.2 821005 3.2 3.2 3.3 3.1 3.2 3.2 821006 3.2 3.2 3.3 3 .1 3.1 3.2 821007 3.2 3.2 3.3 3 .1 3.1 3.2 821008 3.1 3.2 3.3 3.1 3.1 3.2 821009 3 .1 3.2 3.3 3.1 3.1 3.2 821010 3.2 3.2 3.3 3.1 3.1 3.2 821011 3.2 3.2 3.3 3 .1 3.1 3.2 821012 3.1 3.2 3.2 3.1 3.1 3.1 821013 3.2 3.2 3.2 3.1 3.1 3.1 821014 3.1 3.2 3.3 3.0 3.1 3.2 821015 3.1 3.2 3.3 3.0 3.1 3.2 821016 3.2 3.2 3.2 3.0 3.1 3.1 821017 3.1 3.2 3.2 3.0 3 .1 3.1 821018 3.1 3.2 3.3 3.0 3.1 3 .1 821019 3.1 3.2 3.2 3.0 3.1 3.1 821020 3.1 3.2 3.2 3.0 3.1 3.1 821021 3.1 3.2 3.2 3.0 3 .1 3 .1 821022 3 .1 3.1 3.2 2.9 3.0 3.0 821023 3.1 3.1 3.2 2.9 3.0 3.0 821024 3.1 3.1 3.2 2.9 3.0 3.1 821025 3.1 3.1 3.2 2.9 3.0 3 .1 821026 3.1 3.1 3.2 2.9 3.0 3.0 821027 3.1 3.2 2.9 3.0 82103,0 2.9 3.0 2.8 2.9 821031 2.9 3.0 3.0 2.8 2.9 2.9 MONTHLY VALUE 2.9 3.2 3.4 2.8 3.1 3.3 ------------------------------------------------------ A-38 Appendix Table A-6 (Continued). -NOVEMBER 1982 - ---------~-------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE --------------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 821101 2.9 3.0 3.1 2.8 2.9 3.0 821102 3.0 3.0 3.1 2.9 2.9 3.0 821103 3.0 3.0 3.1 2.8 2.9 3.0 821104 3.0 3.1 3.1 2.9 2.9 3.0 821105 3.0 3.0 3.1 2.9 2.9 3.0 821106 3.0 3.0 3.1 2.8 2.9 3.0 821107 2.9 3.0 3.1 2.8 2.9 2.9 821108 2.9 3.0 3.1 2.8 2.9 2.9 821109 3.0 3.0 3.1 2.9 2.9 3.0 821110 3.0 3.1 3.1 2.9 2.9 3.0 821111 3.0 3.0 3.1 2.9 2.9 3.0 821112 3.0 3.0 3.0 2.9 3.0 3.0 821113 3.0 3.0 3.1 2.9 3.0 3.0 821114 3.0 3.0 3.1 2.9 3.0 3.0 821115 3.0 3.1 3.1 2.9 2.9 3.0 821116 3.0 3.0 3.1 2.8 2.9 3.0 821117 3.0 3.0 3.0 2.8 2.9 2.9 821118 2.9 3.0 3.0 2.8 2.9 2.9 821119 2.9 3.0 3.0 2.8 2.9 2.9 821120 2.9 3.0 3.0 2.8 2.9 2.9 821121 2.9 3.0 3.1 2.8 2.9 2.9 821122 3.0 3.0 3.1 2.9 2.9 2.9 821123 3.0 3.0 3.1 2.9 2.9 2.9 821124 3.0 3.0 3.0 2.9 3.0 3.0 821125 3.0 3.0 3.1 2.9 2.9 2.9 821126 3.0 3.0 3.1 2.9 2.9 2.9 821127 3.0 3.0 3.1 2.9 2.9 2.9 821128 3.0 3.0 3.1 2.8 2.8 2.9 821129 3.0 3.0 3.0 2.8 2.9 2.9 821130 3.0 3.0 3.1 2.9 2.9 2.9 MONTHLY VALUE 2.9 3.0 3.1 2.8 2.9 3.0 ---------------------------------------------------------------- A-39 Appendix Table A-6 (Continued). -DECEMBER 1982 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE --------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 821201 3.0 3.0 3.0 2.9 2.9 2.9 821202 3.0 3.0 3.0 2.9 2.9 2.9 821203 3.0 3.0 3.0 2.9 2.9 2.9 821204 2.9 3.0 3.1 2.8 2.8 2.9 821205 2.9 3.0 3.0 2.8 2.8 2.9 821206 2.9 3.0 3.0 2.8 2.8 2.9 821207 3.0 3.0 3.1 2.9 2.9 2.9 821208 3.0 3.0 3.0 2.9 2.9 2.9 821209 3.0 3.0 3.0 2.9 2.9 3.0 821210 3.0 3.0 3.0 2.9 2.9 3.0 821211 3.0 3.0 3.1 2.9 2.9 2.9 821212 3.0 3.0 3.1 2.8 2.9 2.9 821213 3.0 3.1 3.1 2.9 2.9 2.9 821214 3.0 3.0 3.1 2.9 2.9 2.9 821215 3.0 3.0 3 .1 2.9 2.9 2.9 821216 3.0 3.1 3.1 2.9 2.9 3.0 821217 3.0 3.0 3.1 2.9 2.9 3.0 821218 3.0 3.0 3.1 2.9 2.9 3.0 821219 3.0 3.0 3.0 2.9 2.9 2.9 821220 3.0 3.0 3.0 2.8 2.9 2.9 821221 3.0 3.0 3.1 2.8 2.9 2.9 821222 3.0 3.0 3.0 2.8 2.9 2.9 821223 2.9 3.0 3.0 2.8 2.9 2.9 821224 2.9 3.0 3 .o 2.8 2.9 2.9 821225 3 .o 3.0 3.0 2.8 2.9 2.9 821226 3.0 3.0 3.1 2.8 2.9 2.9 821227 3.0 3.0 3.1 2.9 2.9 2.9 821228 3.0 3.0 3.1 2.9 2.9 2.9 821229 3.0 3.0 3.0 2.9 2.9 3.0 821230 3.0 3.0 3.1 2.9 2.9 2.9 821231 3.0 3.1 3.1 2.9 2.9 2.9 MONTHLY VALUE 2.9 3.0 3.1 2.8 2.9 3.0 ----------------------------------------------------------------- A-40 Appendix Table A-6 (Continued). -JANUARY 1983 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE --------------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 830101 3.0 3.0 3.1 2.9 2.9 2.9 83010'2 3.0 3.1 3.1 2.9 2.9 2.9 830103 3.0 3.0 3.1 2.9 2.9 2.9 830104 3 .o 3.1 3.1 2.9 2.9 3.0 830105 3.0 3.0 3.1 2.9 3.0 3.0 830106 3.0 3.1 3.1 2.8 2.9 3.0 830107 3.0 3.0 3.1 2.8 2.9 2.9 830108 2.9 3.0 3.0 2.8 2.8 2.9 830109 2.9 3.0 3.0 2.8 2.8 2.9 830110 2.9 3.0 3.0 2.8 2.8 2.9 830111 2.9 2.9 2.9 2.8 2.8 2.8 830112 2.9 2.9 3.0 2.8 2.8 2.8 830113 2.9 3.0 2.8 2.8 830114 3.0 3.0 2.8 2.8 830115 3.0 3.0 3.0 2.8 2.8 2.9 830116 3.0 3.0 3.1 2.8 2.9 2.9 830117 3.0 3.0 3.1 2.9 2.9 2.9 830118 3.0 3.1 3.1 2.9 2.9 3.0 830119 3.1 3.1 3.1 2.9 2.9 2.9 830120 3.1 3.1 3.1 2.9 2.9 2.9 830121 3.1 3.1 3.1 2.9 3.0 3.0 830122 3.1 3.1 3.1 2.9 2.9 2.9 830123 3.0 3.1 3.1 2.8 2.9 2.9 830124 3.1 3.1 3.1 2.8 2.9 2.9 830125 3.1 3.1 3.1 2.8 2.8 2.9 830126 3.1 3.1 3.1 2.8 2.9 2.9 830127 3.1 3.1 3.1 2.9 2.9 2.9 830128 3 .1 3.1 3.1 2.9 2.9 2.9 830129 3.1 3.1 3.2 2.9 2.9 3.0 830130 3 .1 3.1 3.2 2.9 2.9 3 .o 830131 3.1 3.1 3.2 2.9 3.0 3.0 MONTHLY VALUE 2.9 3.1 3.2 2.8 2.9 3.0 ----------------------------------------------------------------- A-41 Appendix Table A-6 (Continued). -FEBRUARY 1983 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE --------------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 830201 3.1 3.1 3.2 2.9 2.9 2.9 830202 3.1 3.1 3.2 2.9 2.9 2.9 830203 3.1 3.1 3.2 2.9 2.9 2.9 830204 3.1 3.1 3.2 2.9 2.9 2.9 830205 3.1 3.1 3.1 2.9 2.9 2.9 830206 3.1 3.1 3.1 2.9 2.9 2.9 830207 3.1 3.2 3.2 2.9 2.9 2.9 830208 3.2 3.2 3.2 2.9 2.9 2.9 830209 3.1 3.2 3.2 2.9 3.0 3.0 830210 3.1 3.2 3.2 2.9 3.0 3.0 830211 3.1 3.1 3.2 2.9 2.9 2.9 830212 3.1 3.1 3.1 2.9 2.9 2.9 830213 3.1 3.1 3.1 2.8 2.9 2.9 830214 3.1 3.1 3.1 2.8 2.8 2.9 830215 3.0 3.1 3.1 2. 8 . 2.8 2.8 830216 3.0 3.1 3.1 2.8 2.8 2.8 830217 3.0 3.0 3.1 2.8 2.8 2.8 830218 3.0 3.0 3.1 2.8 2.8 2.8 830219 3.0 3.0 3.1 2.8 2.8 2.8 830220 3.0 3.0 3.1 2.8 2.8 2.8 830221 3.0 3.0 3.1 2.8 2.8 2.9 830222 3.0 3.0 3.1 2.8 2.8 2.9 830223 3.1 3.1 3.1 2.8 2.9 2.9 830224 3.1 3.1 3.1 2.8 2.8 2.9 830225 3.1 3.1 3.1 2.8 2.9 2.9 830226 3.1 3.1 3.1 2.9 2.9 2.9 830227 3.1 3.1 3.1 2.9 2.9 2.9 830228 3.1 3.1 3.2 2.9 2.9 2.9 MONTHLY VALUE 3.0 3.1 3.2 2.8 2.9 3.0 ----------------------------------------------------------------- A-42 Appendix Table A-6 (Continued). -MARCH 1983 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE --------------------------------------MIN MEAN MAX MIN MEAN MAX ------------------------------------------------ 830301 3.1 3.1 3.1 2.9 2.9 2.9 830302 3.1 3.1 3.1 2.9 2.9 2.9 830303 3.1 3.1 3.2 2.9 2.9 2.9 830304 3.1 3.1 3.2 2.9 2.9 2.9 830305 3.1 3.2 3.2 2.9 2.9 3.0 830306 3 .1 3.2 3.2 2.9 2.9 3.0 830307 3 .1 3.2 3.2 2.9 2.9 3.0 830308 3.1 3.2 3.2 2.9 2.9 2.9 830309 3.1 3.2 3.2 2.9 2.9 2.9 830310 3.1 3.1 3.2 2.9 2.9 2.9 830311 3 .1 3.1 3.2 2.9 2.9 2.9 830312 3 .1 3.1 3.2 2.9 2.9 2.9 830313 3.1 3.2 3.2 2.9 2.9 3.0 830314 3.1 3.2 3.2 2.9 3.0 3.0 830315 3.1 3.2 3.2 2.9 2.9 2.9 830316 3.1 3.2 3.2 2.9 2.9 3 .0 830317 3.2 3.2 3.2 2.9 3.0 3.0 830318 3.2 3.2 3.2 2.9 3.0 3.0 830319 3.2 3.2 3.2 2.9 3.0 3.0 830320 3.2 3.2 3.2 2.9 3.0 3.0 830321 3.1 3.2 3.2 3.0 3.0 3.0 830322 3.2 3.2 3.3 3.0 3.0 3.0 830323 3.2 3.2 3 .3 3 .o 3 .o 3 .o 830324 3.2 3.2 3.2 3.0 3.0 3.0 830325 3.1 3.2 3.2 3.0 3.0 3.0 830326 3.2 3.2 3.2 3.0 3.0 3 .1 830327 3.2 3.2 3.3 3 .o 3.0 3 .1 830328 3.2 3.2 3.3 3.0 3.0 3 .1 830329 3.2 3.2 3.3 3.0 3.1 3 .1 830330 3.2 3.3 3.3 3.1 3.1 3.2 830331 3.2 3.3 3.3 3.0 3.1 3.2 MONTHLY VALUE 3.1 3.2 3.3 2.9 3.0 3.2 ----------------------------------------------------------------- A-43 Appendix Table A-6 (Continued). -APRIL 1983 ----------------------------------------------INTRAGRA VEL SURFACE WATER DATE ----------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 830401 3.3 3.3 3.4 3.1 3.1 3.3 830402 3.3 3.3 3.4 3.1 3.2 3.3 830403 3.3 3.3 3.4 3.1 3.2 3.3 830404 3.2 3.4 3.4 3.1 3.2 3.3 830405 3.2 3.3 3.3 3.1 3.1 3.2 830406 3.2 3.3 3.4 3.0 3.1 3.2 830407 3.2 3.3 3.4 3.1 3.2 3.3 830408 3.2 3.3 3.4 3.1 3.2 3.3 830409 3 .3 3.3 3.4 3.2 3.2 3.3 830410 3.3 3.4 3.4 3.2 3.2 3.3 830411 3.3 3.4 3.4 3.2 3.2 3.3 830412 3.3 3.4 3.4 3.2 3.2 3.3 830413 3.2 3.3 3.4 3.1 3.2 3.3 830414 3.3 3.4 3.4 3.2 3.2 3.3 830415 3.3 3.4 3.4 3.1 3.2 3.3 830416 3.3 3.4 3.5 3.1 3.2 3.4 830417 3.3 3.4 3.5 3.2 3.3 3.4 830418 3.4 3.4 3.5 3.2 3.3 3.4 830419 3.4 3.4 3.5 3.3 3.4 3.5 830420 3.4 3.5 3.6 3.3 3.4 3.5 830421 3.4 3.5 3.6 3.4 3.5 3.6 830422 3.5 3.5 3.6 3.4 3.5 3.6 830423 3.5 3.5 3.7 3.5 3.5 3.6 830424 3.5 3.6 3.8 3.5 3.6 3.8 830425 3.5 3.6 3.8 3.5 3.7 3.9 830426 3.6 3.7 3.9 3.6 3.8 3.9 830427 3.6 3.7 3.9 3.6 3.8 4.0 830428 3.7 3.7 3.9 3.7 3.8 4.0 830429 3.6 3.7 3.8 3.7 4.4 6.4 830430 3.5 3.7 3.8 3.5 4.8 8.2 MONTHLY VALUE 3.2 3.5 3.9 3.0 3.5 8.2 --------------------------------------------------------------- A-44 Appendix Table A-6 (Continued). -MAY 1983 - -----------------------------------------------------------------INTRAGRA VEL SURFACE WATER DATE --------------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 830501 3.6 3.7 3.8 3.5 4.8 7.7 830502 3.6 3.7 3.8 3.7 5.4 7.4 830503 3.6 3.7 3.8 3.7 5.4 7.4 830504 3.6 3.7 3.8 3.8 4.9 6.9 830505 3.6 3.7 3.8 3.6 5.1 8.7 830506 3.6 3.7 3.8 3. 7 4.9 8.1 830507 3.6 3.7 3.8 3.7 4.9 8.5 830508 3.6 3.7 3.8 3.8 6.1 9.5 830509 3.6 3.7 3.9 3.8 6.4 8.8 830510 3.7 3.7 3.8 3.8 6.6 9.0 830511 3 .6 3.7 3.8 3.8 6.4 9.5 830512 3.7 3.7 3.8 3.9 5.7 8.3 830513 3.6 3.7 3.8 3 .7 7.1 9.7 830514 3 .6 3.7 3.8 4.7 7.3 9.6 830515 3.6 3.7 3.8 5.3 6.6 8.0 830516 3 .6 3.6 3.7 4.6 6.4 8.2 830517 3.6 3.6 3.7 5.3 6.3 7.6 83 0518 3 .6 3.6 3.7 4.9 6.2 7. 7 830519 3.5 3.6 3.7 4.1 6.7 9.1 830520 3 .6 3. 7 3. 7 4.5 7.0 9.0 830521 3.6 3.7 3.7 4.1 6.5 7.7 830522 3.6 3.6 3.7 4.4 6.6 8.7 830523 3.6 3.6 3.7 4.0 6.4 8.4 830524 3.6 3.7 3.7 3.8 5.2 7.6 830525 3.6 3.6 3.7 3.6 6.4 8.5 830526 3.6 3.7 3.7 4.2 6.8 8.9 830527 3.6 3.6 3. 7 3.9 5.5 8.6 830528 3.6 3.6 3.7 3.9 6.5 9.7 830529 3.6 3. 7 3.7 3.8 4.7 7.9 830530 3.6 3~6 3.7 3.9 5.9 8.2 830531 3.5 3.6 3.7 4.1 6. 7 8.0 MONTHLY VALUE 3.5 3.7 3.9 3 .5 6.0 9.7 ----------------------------------------------------------------- A-45 Appendix Table A-6 (Continued). DATE 830601 830602 MONTHLY VALUE -JUNE 1983 - INTRAGRAVEL MIN MEAN 3.5 3.5 3.5 3.6 MAX 3.7 3.6 3.7 A-46 SURFACE WATER MIN MEAN 4.0 4.0 4.0 6.7 MAX 10.0 7.0 10.0 Appendix Table A-7 Datapod intragravel and surface water temperature (C) data summary, at Susitna River at Gold Creek, RM 136.8, Geocode S3 ONO 2Wl7 CDD. -OCTOBER 1982 - INTRAGRAVEL SURFACE WATER DATE MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 821013 821014 821015 821016 821017 821018 821019 821020 821021 821022 821023 821024 821025 821026 821027 821028 821029 821030 821031 MONTHLY VALUE .1 .1 .1 .1 0.0 o.o .1 .2 .2 .2 .2 .2 .3 .1 .3 0.0 .2 .2 .2 .2 .1 .3 .5 .4 .3 .3 .5 .6 .3 .5 A-47 .2 .3 .2 .2 .3 .2 .5 .7 .5 .4 .5 .7 .9 .5 .6 .9 .5 -.1 -.1 -.1 -.1 -.1 -.1 0.0 -.1 -.1 -.1 -.1 -.1 -.1 -.1 -.1 -.1 -.1 -.1 -.1 .8 <.05 .6 0 .o .1 0.0 0.0 o.o o.o 0.0 o.o 0.0 o.o 0.0 o.o 0 .o 0 .o -.1 o.o 0.0 o.o 0.0 o.o 0.0 0.0 o.o o.o 0.0 0.0 0.0 0.0 o.o 0.0 0.0 0 .o -.1 0 .o .8 Appendix Table A-7 (Continued). -NOVEMBER 1982 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE --------------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 821101 .3 .5 .6 -.1 0.0 0.0 821102 .2 .3 .4 -.1 o.o 0.0 821103 .2 .3 .4 -.1 o.o 0.0 821104 .2 .3 .3 -.1 o.o 0.0 821105 .2 .• 3 .3 -.1 0.0 o.o 821106 .2 .3 .4 -.1 0.0 o.o 821107 .2 .3 .4 -.1 -.1 0.0 821108 .3 .4 .4 -.1 o.o 0.0 821109 .4 .4 .5 -.1 0.0 0.0 821110 .3 .4 .5 -.1 o.o 0.0 821111 .3 .4 .5 -.1 o.o o.o 821112 .4 .4 .5 -.1 0.0 o.o 821113 .4 .4 .5 -.1 0.0 o.o 821114 .3 .4 .5 -.1 0.0 o.o 821115 .3 .4 .4 -.1 0.0 0.0 821116 .4 .4 .5 -.1 0.0 o.o 821117 .4 .6 .8 -.1 0.0 0.0 821118 .6 .8 1.1 -.1 -.1 0.0 821119 .5 .7 .8 -.1 0.0 0.0 821120 .5 .5 .6 -.1 0.0 0.0 821121 .5 .6 .7 -.1 -.1 0.0 821122 .5 .6 .7 -.1 0.0 0.0 821123 .4 .5 .5 -.1 0.0 0.0 821124 .4 .5 .5 -.1 0.0 0.0 821125 .3 .4 .5 -.1 -.1 0.0 821126 .4 .4 .5 -.1 0.0 0.0 821127 .4 .4 .5 -.1 0.0 0.0 821128 .4 .5 .5 -.1 0.0 0.0 821129 .4 .5 .5 -.1 0.0 0.0 821130 .4 .5 .5 -.1 0.0 0.0 MONTHLY VALUE .2 .4 1.1 -.1 0.0 o.o ----------------------------------------------------------------- A-48 Appendix Table A-7 (Continued). -DECEMBER 19 82 - -----------------------------------------------------------------INTRAGRA VEL SURFACE WATER DATE -------------------------------------- MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 821201 .4 .s .s -.1 o.o 0.0 821202 .4 .s .5 -.1 o.o 0.0 821203 .4 .s .5 -.1 0.0 0.0 821204 .s .s .7 -.1 o.o 0.0 82120S .s .6 .7 -.1 o.o 0.0 821206 .s .6 .8 -.1 o.o .1 821207 .4 .s .5 -.1 o.o .1 821208 .s .s .6 0.0 o.o 0.0 821209 .4 .s .6 -.1 o.o .1 821210 .4 .s .6 -.1 o.o .1 821211 .3 .s .6 -.1 o.o .1 821212 .3 .4 .4 -.1 .1 .1 821213 .3 .4 .5 0.0 <.OS .1 821214 .3 .4 .s -.1 o.o .1 821215 .3 .3 .4 ~.1 <.05 .1 821216 .3 .s .6 -.1 o.o .1 821217 .3 .4 .s -.1 o.o .1 821218 .4 .4 .s o.o <.OS .1 821219 .3 .4 .s -.1 <.OS .1 821220 .3 .3 .4 0.0 <.OS .1 821221 .3 .3 .s 0.0 0.0 .1 821222 .3 .4 .s -.1 <.OS .1 821223 .4 .4 .s -.1 0.0 .1 821224 .4 .4 .s -.1 0.0 o.o 82122S .3 .4 .s -.1 0.0 .1 821226 .3 .4 .s -.1 0.0 .1 821227 .4 .s .s -.1 0.0 .1 821228 .3 .4 .4 0.0 o.o 0.0 821229 .4 .4 .s o.o 0.0 0.0 821230 .4 .s .s -.1 0.0 .1 821231 .4 .s .5 -.1 o.o o.o MONTHLY VALUE .3 .s .8 -.1 <.OS .1 ----------------------------------------------------------------- A-49 Appendix Table A-7 (Continued). -JANUARY 1983 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE --------------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 830101 .4 .5 .5 -.1 o.o o.o 830102 .4 .4 .5 -.1 o.o .1 830103 .3 .4 .5 -.1 -.1 o.o 830104 .3 .4 .4 -.1 -.1 0.0 830105 .2 .3 .4 -.1 -.1 o.o 830106 .3 .4 .4 -.1 -.1 o.o 830114 .3 .4 -.1 o.o 830115 .3 .3 .4 -.1 -.1 o.o 830116 .3 .4 .4 -.1 o.o 0.0 830117 .3 .3 .4 -.1 -.1 0.0 830118 .3 .4 .4 -.1 0.0 o.o 830119 .3 .4 .4 -.1 o.o o.o 830120 .3 .3 .4 -.1 -.1 o.o 830121 .3 .3 .4 -.1 -.1 0.0 830122 .3 .6 2.0 -.1 o.o o.o 830123 1.1 1.6 2.8 -.1 0.0 0.0 830124 .5 3.9 -.1 -.1 0.0 830125 -.1 -.1 0.0 830126 -.1 0.0 o.o 830127 -.1 o.o o.o 830128 -.1 0.0 o.o 830129 -.1 0.0 0.0 830130 -.1 0.0 0.0 830131 0.0 o.o MONTHLY VALUE .2 3.9 -.1 0.0 .1 ----------------------------------------------------------------- A-50 Appendix Table A-8 Datapod intragravel and surface water temperature {C) data summary, at Slough 16B, RM 138.0, Geocode S31N02Wl7AAA. -AUGUST 1982 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE --------------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 820821 4.8 5.5 6.7 4.3 5.9 9.2 820822 4.7 5.7 6.9 4.2 5.9 9.0 820823 5.6 6.2 6.8 5.5 6.4 8.0 820824 5.4 6.2 7.4 5.1 6.3 8.7 820825 5.9 6.5 7.5 5.5 6.7 9.0 820826 5.9 6.5 7.6 5.5 6.8 9.1 820827 4.6 5.9 7.4 3.9 5.7 8.7 820828 4.7 5.6 7.0 4.5 5.6 7.8 820829 5.3 5.9 6.7 5.0 6.0 7.1 820830 5.5 5.8 6.2 5.3 5.9 6.7 820831 5.6 5.8 6.3 5.2 6.2 8.0 MONTHLY VALUE 4.6 7:6 3.9 9.2 A··51 Appendix Table A-8 (Continued). -SEPTEMBER 1982 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE --------------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 820901 5.7 6.0 6.4 5.4 6.6 8.6 820902 5.5 5.9 6.4 4.9 6.1 8.6 820903 5.5 5.8 6.2 5.0 5.9 7.7 820904 5.2 5.6 6.0 4.6 5.7 7.9 820905 5.1 5.6 5.9 4.6 5.6 7.6 820906 5.3 5.6 6.0 5.0 5.7 6 .6 820907 5.0 5.7 6.7 4.8 5.8 7.6 820908 5.1 5.5 5.9 4.8 5.4 6.2 820909 5.0 5.5 6.0 4.8 5.5 7.0 820910 5.0 5.5 6.0 4.6 5.5 6.9 820911 5.0 5.2 5.5 4.5 5.0 5.6 820912 4.4 4.9 5.4 3.9 4.8 6.3 820913 4.8 5.0 5.2 4.5 5.1 6.1 820914 5.0 5.2 5.3 5.0 5.5 6.4 820915 5.3 5.8 6.6 6.1 6.7 8.0 820916 6.4 6.6 6.8 6. 7 7.2 7.9 820917 5.9 6.2 6.6 5.7 6.2 6.9 820918 5.5 5.7 6.0 5.5 6.1 6.6 820919 5.2 5.4 5.6 5.9 6.2 6.5 820920 5.0 5.2 5.3 5.7 6.1 6.5 820921 4.9 5.0 5.1 5.5 6.0 6.4 820922 4.7 4.9 5.1 4.7 5.8 6.5 820923 4.1 4.5 4.9 3.2 4.3 5.8 820924 3.8 4.2 4.6 2.3 3 .7 5.7 820925 3.7 4.2 4.5 2.7 4.2 5.8 820926 4.2 4.4 4.6 4.0 4.6 5.5 820927 4.3 4.5 4.8 3.6 4.6 6.3 820928 3.7 4.1 4. 7 2.6 3.7 5.0 820929 4.1 4.3 4.7 3.9 4.6 6.0 820930 4.4 4.6 4.9 4.0 4.8 6.1 MONTHLY VALUE 3.7 5.2 6.8 2.3 5.4 8.6 I ----------------------------------------------------------------- A-52 Appendix Table A-8 (Continued). -OCTOBER 19 82 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE ---------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 821001 4.4 4.6 4.8 3.7 4.4 5.4 821002 4.1 4.5 4.8 3 .6 4.3 5.6 821003 4.1 4.4 4.7 3.4 4.1 5.3 821004 3.5 3.9 4.5 2.3 3.2 4.7 821005 3.3 3.6 3.9 2.2 2.9 4.1 821006 2.9 3.3 3.7 2.0 3.0 4.4 821007 3.3 3.5 3.7 2.7 3.2 4.1 821008 3.4 3.6 3.9 2.0 3.3 4.5 821009 3.2 3.4 3.8 2.1 3.2 4.3 821010 3.5 3.7 4.0 3.1 3.5 4.2 821011 3.3 3.5 3.9 1.9 3.0 3.7 821012 2.9 3.2 3.5 2.0 2.8 3.5 821013 3 .1 3.3 3.5 2.4 2.9 3.4 821014 3.0 3.2 3.5 2.4 2.9 3.8 821015 3.0 3.1 3.5 2.3 2.6 3.3 821016 3.0 3.1 3.2 2.4 2.8 3.1 821017 3.0 3.2 3.6 2.2 3.0 3.8 821018 3.0 3.2 3.5 2.3 2.8 3.4 821019 2.9 3.2 3.3 2.1 2.8 3.3 821020 3.1 3.2 3.4 2.5 2.8 3.5 821021 3.0 3.1 3.3 2.3 2.7 3.2 821022 2.6 3.0 3.4 2.0 2.7 3.4 821023 2.9 3.1 3.3 2.4 2.8 3.2 821024 3.0 3.2 3.5 2.5 2.9 3.6 821025 2.7 3.4 2.2 3.0 MONTHLY VALUE 2.6 3.5 4.8 1.9 3.1 5.6 ---------------------------~----------------------------------- A-53 Appendix Table A-9 Datapod intragravel and surface water temperature (C) data summary, at Slough 19, RM 140.0, Geocode S31N02Wl0DBA. -AUGUST 1982 - INTRAGRAVEL SURFACE WATER DATE MIN MEAN MAX MIN MEAN MAX 820821 2.8 2.9 3.0 3.5 4.9 7.9 820822 2.8 3.0 3.1 3.5 5.0 7.4 820823 2.9 3.0 3.1 4.3 5.3 6 0 7 820824 2.9 3.0 3.1 4.0 5.2 7.5 820825 3.0 3.0 3.1 4.3 5.6 7.9 820826 2.9 3.0 3.1 4.2 5.7 8.2 820827 2.9 3.0 3.1 3 .2 4.9 7.8 820828 2.9 3.0 3.1 3 .6 4.8 6 .6 820829 2.9 3.0 3.0 4.1 4.9 5.9 820830 2.9 3.0 3.0 4.3 4.6 5.2 820831 2.8 2.9 3.0 3.9 4.6 6 .1 MONTHLY VALUE 2.8 3.1 3.2 8.2 A-54 Appendix Table A-9 (Continued). -SEPTEMBER 1982 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE --------------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 820901 2.8 3.0 3.2 3.8 4.8 6.2 820902 2.8 3.0 3.1 3 .6 4.7 6.8 820903 2.9 2.9 3.0 3.9 4.6 5.9 820904 2.9 2.9 3.0 3.8 4.6 6.3 820905 2.9 3.0 3.0 3.6 4.5 6.0 820906 2.9 3.0 3.1 3.8 4.5 5.3 820907 2.9 3.0 3.2 4.0 5.2 7.4 820908 3 .1 3.1 3.2 4.2 4.9 5.8 820909 3.0 3.1 3.2 4.1 4.7 6.4 820910 3.0 3.1 3.1 3.8 4.4 5.5 820911 3.0 3.0 3.1 3.6 4.1 4.7 820912 2.9 3.0 3.1 3.4 4.0 5.3 820913 2.9 3.0 3.1 3.8 4.1 5.2 820914 3 .1 3.1 3.2 3.7 4.3 4.9 820915 3.2 3.3 3.5 4.1 4.6 5.5 820916 3.5 3.6 4.2 4.3 4.7 5.6 820917 3.7 3.9 4.2 4.2 4.6 5.1 820918 3.5 3.7 3.9 3.9 4.3 4.8 820919 3.5 3.5 3.7 3.9 4.1 4.4 820920 3.4 3.5 3.6 3.8 4.1 4.6 820921 3.4 3.5 3.6 3 0 7 4.1 4.6 820922 3.4 3.5 3.7 3 .7 4.2 5.1 820923 3.2 3.4 3.6 3.4 3.8 4.7 820924 3.1 3.3 3.4 3 .1 3.6 4.5 820925 3.1 3.2 3.5 3.1 3.6 4.2 820926 3.2 3.3 3.4 3.4 3.7 4.1 820927 3.2 3.4 3.6 3.5 3.8 4.6 820928 3.0 3.2 3.4 3.0 3.4 4.0 820929 3.2 3.4 3.6 3.4 3.7 4.3 820930 3.2 3.4 3.6 3.4 3.7 4.3 MONTHLY VALUE 2.8 3.2 4.2 3.0 4.2 7.4 ----------------------------------------------------------------- A-55 Appendix Table A-9 (Continued). -OCTOBER 1982 - INTRAGRAVEL SURFACE WATER DATE MIN MEAN MAX MIN MEAN MAX 821001 3.4 3.7 4.4 821002 3 .1 3.5 4.4 821003 2.9 3.5 4.4 821004 2.6 3 .1 4.0 821005 2.5 2.8 3.5 821006 2.4 2.8 3 .6 821007 2.5 2.7 3.2 821008 2.0 2.7 3.6 821009 2.4 2.8 3.4 821010 2.4 2.7 3.1 8210ll 2.5 2.8 3.4 821012 2.2 2.5 2.9 821013 1.7 2.5 3.2 821014 2.2 2.7 4.0 821015 2.6 3.0 3.5 821016 2.0 2.4 2.9 821017 2.0 2.4 3.3 821018 2.2 2.6 3.1 821019 1.6 2.0 2.4 821020 1.6 2.0 2.5 821021 1.9 2.3 2.6 821022 1.9 2.1 2.5 821023 2.1 2.2 2.4 821024 2.2 2.3 2.6 821025 2.2 2.6 821029 2.0 2.1 1.2 1.4 821030 2.0 2.1 2.1 1.1 1.2 1.4 821031 2.0 2.1 2.2 1.0 1.2 1.2 MONTHLY VALUE 2.0 2.2 1.0 2.5 4.4 A-56 Appendix Table A-9 (Continued). -NOVEMBER 1982 - ----------------------------------------------------~------------INTRAGRAVEL SURFACE WATER DATE ------------------- -------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 821101 2.1 2.2 2.2 1.1 1.2 1.3 821102 2.1 2.2 2.3 1.1 1.2 1.3 821103 2.1 2.1 2.2 1.1 1.2 1.3 821104 2.0 2.0 2.1 1.0 1.2 1.3 821105 1.9 2.0 2.1 .9 <.05 1.1 821106 1.8 1.9 2.0 .7 .8 .9 821107 1.7 1.8 1.9 .7 .8 .9 821108 1.6 1.7 1.8 .7 .8 .9 821109 1.6 1.6 1.7 .8 .8 .9 821110 1.6 1.7 1.7 .7 .8 .9 821111 1.6 1.7 1.7 .9 <.05 1.0 821112 1.7 1.7 1.8 .7 .9 1.0 821113 1.7 1.7 1.8 .7 .9 1.0 821114 1.8 1.8 1.8 .8 .9 .9 821115 1.8 2.0 2.1 .9 1.1 1.1 821116 2.0 2.0 2.1 1.1 1.3 1.4 821117 2.0 2.0 2.1 1.3 1.4 1.6 821118 2 .o . 2.0 2.1 1.3 1.5 1.6 821119 2.0 2.0 2.1 1.4 1.5 1.6 821120 1.8 1.9 2.0 .9 1.4 1.6 821121 1.6 1.7 1.8 .7 .8 1.0 821122 1.6 1.6 1.6 .7 .9 1.0 821123 1.6 1.7 1.7 .9 1.0 1.1 821124 1.7 1.7 1.8 .9 1.0 1.1 821125 1.7 1.8 1.8 .8 .9 1.0 821126 1.7 1.7 1.8 .8 .8 .9 821127 1.6 1.7 1.7 .7 .8 .8 821128 1.6 1.6 .1.7 .7 .8 .9 MONTHLY VALUE 1.6 1.8 2.3 .7 1.0 1.6 ----------------------------------------------------------------- A-57 Appendix Table A-9 (Continued). -JANUARY 1983 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE --------------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 830114 2.1 2.2 1.2 1.3 830115 2.0 2.2 2.3 1.2 1.3 1.5 830116 2.1 2.2 2.3 1.4 1.5 1.6 830117 2.1 2.3 2.5 1.5 1.8 2.2 830118 2.4 2.6 2.6 2.1 2.2 2.3 830119 2.5 2.6 2.6 2.1 2.3 2.4 830120 2.5 2.6 2.6 2.1 2.3 2.4 830121 2.6 2.6 2.7 2.2 2.3 2.4 830122 2.6 2.7 2.8 2.3 2.5 2.6 830123 2.6 2.7 2.8 2.4 2.6 2.6 830124 2.6 2.7 2.8 2.4 2.5 2.6 830125 2.6 2.7 2.8 2.4 2.5 2.5 830126 2.6 2.7 2.7 2.4 2.5 2.5 830127 2.6 2.7 2.8 2.4 2.5 2.6 830128 2.5 2.7 2.8 2.0 2.4 2.6 830129 2.5 2.6 2.6 2.2 2.3 2.5 830130 2.5 2.6 2.6 2.2 2.3 2.4 830131 2.5 2.6 2.6 2.1 2.3 2.4 MONTHLY VALUE 2.0 2.8 1.2 2.6 ----------------------------------------------------------------- A-58 Appendix Table A-9 (Continued). -FEBRUARY 1983 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE --------------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 830201 2.4 2.5 2.6 2.0 2.2 2.3 830202 2.4 2.5 2.6 2.0 2.2 2.3 830203 2.4 2.5 2.6 2.1 2.2 2.4 830204 2.4 2.5 2.6 2.1 2.2 2.4 830205 2.4 2.5 2.6 2.1 2.2 2.3 830206 2.4 2.5 2.5 2.1 2.2 2.3 830207 2.3 2.4 2.5 1.9 2.2 2.3 830208 2.3 2.4 2.5 2.0 2.1 2.2 830209 2.3 2.4 2.5 2.0 2.2 2.3 830210 2.3 2.4 2.5 2.0 2.1 2.2 830211 2.3 2.4 2.5 2.0 2.1 2.3 830212 2.3 2.4 2.5 2.1 2.2 2.3 830213 2.3 2.4 2.5 2.0 2.1 2.3 830214 2.3 2.4 2.5 2.1 2.2 2.3 830215 2.3 2.4 2.4 2.1 2.2 2.3 830216 2.2 2.3 2.4 2.1 2.2 2.3 830217 2.2 2.3 2.4 2.0 2.2 2.3 830218 2.1 2.3 2.4 2.0 2.1 2.2 830219 2.1 2.2 2.3 1.9 2.0 2.1 830220 2.1 2.2 2.3 1.8 2.0 2.0 830221 2.0 2.1 2.1 1.8 1.9 2.0 830222 2.0 2.1 2.1 1.8 2.0 2.0 830223 1.9 2.0 2.1 1.8 1.9 2.0 830224 1.8 1.9 2.0 1.8 1.8 1.9 830225 1.8 2.0 2.0 1.8 1.9 1.9 830226 L8 1.9 2.0 1.7 1.9 1.9 830227 1.8 1.9 2.0 1.7 1.8 1.8 830228 1.7 1.9 1.9 1.7 1.8 1.8 MONTHLY VALUE 1.7 2.3 2.6 1.7 2.1 2.4 ----------------------------------------------------------------- A-59 Appendix Table A-9 (Continued). -MARCH 1983 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE --------------------------------------MIN MEAN MAX MIN MEAN MAX ------------------------------------------------------~---------- 830301 1.7 1.8 1.9 1.6 1.7 1.8 830302 1.6 1.9 2.0 1.5 1.8 1.9 830303 1.6 1.9 2.0 1.6 1.7 2.0 830304 1.7 1.9 2.1 1.6 1.7 2.0 830305 1.6 1.7 1.9 1.6 1.6 1.8 830306 1.6 1.8 2.0 1.5 1.6 1.8 830307 1.6 1.8 2.0 1.5 1.7 1.8 830308 1.6 1.8 2.0 1.5 1.7 1.9 830309 1.5 1.8 2.0 1.5 1.7 1.9 830310 1.6 1.8 2.0 1.5 1.7 1.8 830311 1.5 1.7 1.8 1.4 1.6 1.7 830312 1.5 1.6 1.8 1.4 1.5 1.7 830313 1.5 1.7 1.9 1.4 1.6 1.8 830314 1.5 1.7 1.9 1.4 1.6 1.7 830315 1.5 1.6 1.8 1.3 1.5 1.6 830316 1.5 1.7 1.9 1.4 1.6 1.7 830317 1.5 1.7 2.0 1.4 1.6 1.8 830318 1.5 1.7 1.9 1.4 1.6 1.7 830319 1.4 1.7 1.9 1.3 1.5 1.7 830320 1.4 1.6 1.9 1.3 1.5 1.7 830321 1.4 1.6 1.7 1.3 1.5 1.6 830322 1.4 1.7 1.8 1.3 1.5 1.6 830323 1.4 1.7 1.8 1.3 1.5 1.6 830324 1.3 1.6 1.8 1.2 1.5 1.6 830325 1.3 1.5 1.8 1.3 1.4 1.7 830326 1.3 1.6 1.8 1.3 1.5 1.6 830327 1.3 1.6 1.7 1.3 1.5 1.6 830328 1.3 1.6 1.8 1.3 1.5 1.7 830329 1.3 1.6 1.8 1.3 1.5 1.7 830330 1.3 1.6 1.8 1.3 1.5 1.8 830331 1.3 1.6 1.8 1.2 1.6 1.9 MONTHLY VALUE 1.3 1.7 2.1 1.2 1.6 2.0 ----------------------------------------------------------------- A-60 Appendix Table A-9 (Continued). -APRIL 1983 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE ------------------- -------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 830401 1.4 1.7 1.9 1.3 1.6 2.1 830402 1.4 1.7 2.0 1.5 1.8 2.4 830403 1.7 1.9 2.1 1.6 1.9 2.6 830404 1.6 1.8 2.1 1.4 1.8 2.1 830405 1.5 1.7 1.9 1.4 1.6 1.8 830406 1.4 1.6 1.8 1.3 1.6 1.9 830407 1.5 1.8 2.1 1.4 1.8 2.6 830408 1.6 2.0 2.5 1.5 2.1 3.1 830409 1.6 1.9 2.4 1.4 1.6 2.1 830410 1.5 1.8 2.1 1.4 1.7 2.0 830411 1.6 1.9 2.2 1.5 1.7 2.0 830412 1.3 1.6 1.8 1.1 1.3 1.6 830413 1.2 1.3 1.5 1.0 1.1 1.2 830414 1.1 1.3 1.4 .9 1.1 1.2 830415 1.1 1.2 L4 .9 1.1 1.2 830416 1.1 1.2 1.4 .9 1.1 1.4 830417 1.2 1.4 1.5 1.1 1.2 1.4 830418 1.1 1.3 1.5 .9 1.1 1.3 830419 1.1 1.2 1.4 .9 1.1 1.3 830420 1.1 1.4 1.6 .9 1.3 1.8 830421 1.3 1.6 2.1 1.1 1.6 2.4 830422 1.6 1.9 2.2 1.4 1.8 2.3 830423 1.7 1.9 2.2 1.6 1.9 2.3 830424 1.8 2.3 3.4 1.6 2.5 4.2 830425 2.5 3.2 4.2 2.5 3.5 5.0 830426 3.0 3.7 4.4 3.0 4.1 5.6 830427 3.4 4.0 4.6 3.4 4.4 5.8 830428 2.8 3.5 4.2 3.5 4.1 5.0 830429 2.7 3.0 3.4 3.1 4.5 6.8 830430 3.2 3.5 4.0 4.2 5.7 7.9 MONTHLY VALUE 1.1 2.0 4.6 .9 2.1 7.9 ---------------------------------~------------------------------- A-61 Appendix Table A-9 (Continued). -MAY 1983 - -----------------------------------------~-----------------------INTRAGRAVEL SURFACE WATER DATE --------------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 830501 3.6 4.0 4.2 4.7 5.9 8.5 830502 3.5 3.7 4.2 4.0 5.1 6.6 830503 2.9 3.3 3.7 2.8 4.5 6.4 830504 2.8 3.1 3.4 2.9 4.5 6.5 830505 2.6 3.0 3.3 2.7 4.4 6.7 830506 2.5 2.9 3.2 2.5 4.0 7.0 830507 2.3 2.7 3.0 2.2 4.0 6.7 830508 2.5 2.8 3.1 2.6 4.4 6. 7 830509 2.3 2.7 3.1 1.6 3.4 5.3 830510 2.3 2.6 2.8 2.1 3.8 6.1 830511 2.3 2.7 2.9 2.5 4.4 6.4 830512 2.4 2.7 2.9 2.0 3.6 5.7 830513 2.5 2.7 2.9 2.1 3.4 5.7 830514 2.4 2.7 2.9 2.0 3.4 5.6 830515 2.5 2.8 3.2 2.3 3.8 5.7 830516 3.0 3.2 3.5 3.4 4.4 6 .1 830517 3.1 3.5 2.9 4.2 MONTHLY VALUE 2.3 4.2 1.6 8.5 ----------------------------------------------------------------- A-62 Appendix Table A-10 Datapod intragravel and surface water temperature (C) data summary, at Slough 21 - Mouth, RM 141.8, Geocode S31N02W02AAB. -SEPTEMBER 19 82 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE --------------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 820917 3.7 6.7 7.4 6.6 6.9 7.5 820918 5.2 5.8 6.8 4.7 5.7 6.6 820919 3.6 4.4 5.4 4.3 5.0 7.1 820920 3.6 3. 7 3.7 4.5 5.0 5.6 820921 3.6 3.7 3.7 4.4 4.9 5.8 820922 3 .6 3.7 3.7 3.5 4.4 5.3 820923 3.6 3.6 3.7 2.6 3.4 5.2 820924 3.6 3.6 3.7 2.3 3.2 4.9 820925 3.6 3.6 3.7 2.6 3.4 4.7 820926 3.6 3.7 3.7 3.2 3.6 4.3 820927 3.6 3.6 3.7 3.0 3.8 5.0 820928 3.6 3.7 3.7 2.4 3.1 4.2 820929 3.6 3.7 3. 7 3.3 3.7 4.8 820930 3.6 3.7 3.7 3.4 3.8 5.1 MONTHLY VALUE 3.6 7.4 2.3 7.5 A-63 Appendix Table A-10 (Continued). -OCTOBER 1982 - -----------------------------------------------------------------INTRAGRA VEL SURFACE WATER DATE ------------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 821001 3 .6 3.7 3.7 3.1 3.6 4.3 821002 3 .6 3.7 3.7 3 .o 3.6 4.6 821003 3.6 3.7 3. 7 2.8 3.4 4.5 821004 3 .6 3.7 3.7 2.2 2.8 4.3 821005 3.6 3.7 3.7 2.1 2.5 3.5 821006 3.6 3.7 3.7 2.0 2.7 3. 7 821007 3.6 3.7 3.7 2.3 2.7 3 .6 821008 3.6 3 .6 3.7 1.5 2.8 3.9 821009 3 .6 3.6 3.7 1.5 2.8 3.7 821010 3 .6 3.7 3.7 2.5 2.8 3.5 821011 3.6 3.7 3.7 1.2 2.6 3.3 821012 3.6 3. 7 3.7 1.6 2.6 3 .3 821013 3.6 3.7 3. 7 1.7 2.7 3 .1 821014 3.6 3.7 3.7 1.8 2.6 3 .7 821015 3.6 3.7 3. 7 1.1 1.6 2.4 821016 3.6 3.6 3.7 1.5 2.0 2.5 821017 3.6 3.6 3.7 1.9 2.6 3.6 821018 3.6 3.7 3.7 1.5 2.0 2.8 821019 3.6 3.7 3.7 1.3 2.3 3.0 821020 3.6 3.7 3.7 1.3 2.0 2.5 821021 3 .6 3.6 3.7 .6 1.0 1.5 821022 3 .6 3.6 3.7 .6 1.0 1.5 821023 3 .6 3.6 3.7 .6 <.OS 1.2 821024 3.6 3.6 3. 7 .3 1.1 1.9 821025 3 .6 3.7 .7 1.3 821029 3.5 3.6 .s 1.5 821030 3.5 3.5 3.6 .3 .s .9 821031 3.5 3.5 3.5 .2 .6 1.4 MONTHLY VALUE 3.5 3.6 3.7 .2 2.2 4.6 ----------------------------------------------------------------- A-64 Appendix Table A-10 (Continued). -NOVEMBER 1982 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE --------------------------------HIN MEAN MAX MIN MEAN MAX . ----------------------------------------------------------------- 821101 3.5 3.5 3.5 1.0 1.7 2.4 821102 3.5 3.5 3.5 1.8 2.3 3.0 821103 3.5 3.5 3.5 .5 1.2 2.0 821104 3.5 3.5 3.5 1.4 1.8 2.6 821105 3.5 3.5 3.5 .8 1.5 2.1 821106 3.5 3.5 3.6 .2 .5 .8 821107 3.5 3.5 3.5 .1 .3 .6 821108 3.5 3.5 3.5 .3 .7 1.3 821109 3.5 3.5 3.5 1.1 1.6 2.0 821110 3.5 3.5 3.5 .6 1.3 1.9 821111 3.5 3.5 3.5 .8 1.6 2.4 821112 3.5 3.5 3.5 1.6 1.9 2.5 821113 3.5 3.5 3.5 1.3 1.9 2.2 821114 3.4 3.5 3.5 .4 1.6 2.2 821115 3.4 3.5 3.5 .3 .8 1.2 821116 3.5 3.5 3.5 .1 .3 .5 821117 3.5 3.5 3.5 -.1 .1 .4 821118 3 .5 3.5 3.5 0.0 .1 .2 821119 3.5 3.5 3.5 0.0 .1 .3 821120 3.5 3.5 3.5 .3 .4 .8 821121 3.5 3.5 3.5 .7 1.1 1.5 821122 3.5 3.5 3.5 1.3 1.5 1.7 821123 3.4 3.5 3.5 1.4 1.9 2.2 821124 3.4 3.5 3.5 .7 1.6 2.2 821125 3.4 3.5 3.5 .6 .9 1.3 821126 3.4 3.5 3.5 .5 .8 1.2 821127 3.4 3.4 3.5 .6 1.1 1.6 821128 3.4 3.5 3.5 .1 .4 .7 821129 3.4 3.5 3.5 .4 .8 1.2 821130 3.4 3.5 3.5 .2 .7 1.1 MONTHLY VALUE 3.4 3.5 3.6 -.1 1.1 3.0 ----------------------------------------------------------------- A-65 Appendix Table A-10 (Continued). -DECEMBER 1982 - -----------------------------------------------------------------INTRAGRA VEL SURFACE WATER DATE --------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 821201 3.4 3.5 3.5 .1 .5 .9 821202 3.4 3.4 3.5 -.1 <.05 .2 . 821203 3.4 3.5 3.5 -.1 <.05 .1 821204 3.4 3.5 3.5 0.0 <.05 .2 821205 3.5 3.5 3.5 .1 .4 .9 821206 3.4 3.5 3.5 .5 .8 1.1 821207 3.4 3.5 3.5 1.1 1.6 2.1 821208 3.4 3.4 3.5 .7 1.6 2.1 821209 3.4 3.4 3.5 .2 1.2 2.1 821210 3.4 3.4 3.5 -.2 <.05 .3 821211 3.4 3.5 3.5 .1 .4 .8 821212 3.4 3.4 3.5 .3 <.05 1.4 821213 3.4 3.4 3.5 .8 1.2 1.6 821214 3.4 3.4 3.5 .5 1.0 1.6 821215 3.4 3.4 3.4 .6 1.3 1.9 821216 3.4 3.4 3.4 .4 .9 1.3 821217 3.4 3.4 3.4 1.0 1.3 1.7 821218 3.4 3.4 3.4 o.o .3 1.2 821219 3.4 3.4 3.4 .1 .3 .6 821220 3.4 3.4 3.4 .1 .3 .6 821221 3.4 3.4 3.4 -.1 <.05 .2 821222 3.4 3.4 3.4 -.1 <.05 .1 821223 3.4 3.4 3.4 0.0 .1 .3 821224 3.4 3.4 3.5 .1 .4 .6 821225 3.4 3.4 3.4 .4 .6 .8 821226 3.4 3.4 3.4 .6 1.0 1.3 821227 3.4 3.4 3.4 1.2 1.5 1.7 821228 3.4 3.4 3.4 .6 1.0 1.7 821229 3.4 3.4 3.4 1.5 1.8 2.0 821230 3.4 3.4 3.4 .9 1.6 1.9 821231 3.4 3.4 3.4 .7 1.1 1.5 MONTHLY VALUE 3.4 3.4 3.5 -.2 .8 2.1 ----------------------------------------------------------------- A-66 Appendix Table A-10 (Continued). -JANUARY 1983 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE --------------------------------------MIN MEAN MAX MIN MEAN MAX -------~------------------------------------------------------ 830101 3.4 3.4 3.4 1.2 l.S 1.8 830102 3.4 3.4 3.4 l.S 1.7 2.0 830103 3.4 3.4 3.4 1.0 1.4 1.8 830104 3.4 3.4 3.4 -.1 .2 1.0 83010S 3.4 3.4 3.4 -.1 <.OS .1 830106 3.4 3.4 3.4 0.0 .1 .3 830107 3.4 3.4 3.4 -.1 .1 .2 830108 3.4 3.S 3.5 0.0 .2 .4 830109 3.4 3.S 3.5 0.0 <.OS .1 830110 3.4 3.4 3.5 0.0 <.05 .1 830111 3.4 3.4 3.4 o.o <.OS .1 830112 3.4 3.4 3.5 o.o .1 .2 830113 3.4 3.4 o.o .2 830114 3.4 3.5 .4 .6 83011S 3.4 3.4 3.5 .4 .6 1.1 830116 3.4 3c4 3.5 1.1 1.3 1.6 830117 3.4 3.4 3.5 .6 1.2 1.6 830118 3.4 3.4 3.4 .6 1.4 1.8 830119 3.4 3 .s 3.5 1.4 1.7 1.9 830120 3.4 3.5 3.5 .6 1.0 l.S 830121 3.4 3.4 3.5 .6 .8 1.0 830122 3.4 3.4 3.5 -.3 .3 .7 830123 3.4 3.5 3.5 -.1 .3 .6 830124 3.4 3.5 3.5 .1 .s .8 83012S 3.4 3.4 3.5 .3 .6 .9 830126 3.4 3.5 3.5 .s 1.0 1.6 830127 3.4 3.S 3.5 .5 <.05 1.3 830128 3.4 3.S 3.5 .8 1.2 1.7 830129 3.4 3.S 3.5 o.o .4 .9 830130 3.4 3.4 3.5 .1 .7 l.S 830131 3.4 3.5 3.5 1.3 1.6 2.3 MONTHLY VALUE 3.4 3.4 3.5 -.3 .7 2.3 -----------------------------------~----------------------------- A·67 Appendix Table A-10 (Continued). -FEBRUARY 1983 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE --------------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 830201 3.4 3.4 3.5 1.3 1.7 2.3 830202 3.4 3.5 3.5 1.1 1.7 2.3 830203 3.4 3.5 3.5 1.4 1.7 2.1 830204 3.4 3.5 3.5 1.3 1.6 2.0 830205 3.4 3.4 3.5 1.3 1.7 2.4 830206 3.4 3.4 3.5 .8 1.5 2.4 830207 3.4 3.4 3.5 1.0 1.9 2.8 830208 3.4 3.4 3.5 1.1 1.5 2.4 830209 3.4 3.4 3 .s .1 .4 1.4 830210 3.4 3.4 3.5 0.0 .3 .8 830211 3.4 3.4 3.5 0.0 .2 .s 830212 3.4 3.4 3.4 0.0 .2 .4 830213 3.4 3.4 3.5 .1 .2 .4 830214 3.4 3.4 3.5 .2 .4 .s 830215 3.4 3.4 3.4 .1 .3 . .6 830216 3.4 3.4 3.4 .2 .4 .s 830217 3.4 3.4 3.4 .1 .s .8 830218 3.4 3.4 3.4 .4 .6 .8 830219 3.4 3.4 3.4 .7 1.0 1.3 830220 3.4 3.4 3.4 .s 1.1 1.7 830221 3.4 3.4 3.4 .9 1.4 2.2 830222 3.4 3.4 3.4 .6 1.2 1.8 830223 3.4 3.4 3.4 .4 <.OS 1.8 830224 3.4 3.4 3.4 1.1 1.7 2.6 830225 3.3 3.4 3.4 .4 1.0 1.7 830226 3.3 3.4 3.4 .4 1.1 2.0 830227 3.3 3.4 3.4 .s 1.2 2.7 830228 3.3 3.4 3.4 .8 1.8 3.0 MONTHLY VALUE 3.3 3.4 3.5 0.0 1.1 3.0 ----------------------------------------------------------------- A-68 Appendix Table A-10 (Continued). -MARCH 1983 - -----------------------------------------------------------------INTRAGRA VEL SURFACE WATER DATE --------------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 830301 3.3 3.4 3.4 1.2 2.0 2.6 830302 3.3 3.4 3.4 .1 .9 1.5 830303 3.3 3.4 3.4 o.o .3 .8 830304 3.3 3.4 3.4 .1 .5 1.1 830305 3.3 3.4 3.4 .3 .9 1.5 830306 3.3 3.4 3.4 .1 .8 1.6 830307 3.4 3.4 3.4 .3 .8 1.8 830308 3 .3 3.4 3.4 0.0 .4 1.3 830309 3.3 3.4 3.4 .1 .4 1.0 830310 3.3 3.4 3.4 .1 .7 1.5 830311 3.3 3.4 3.4 .9 1.5 2.5 830312 3.3 3.3 3.4 .7 1.7 3.3 830313 3.3 3.4 3.4 .5 1.3 3.3 830314 3 .3 3.4 3.4 .4 1.3 3.2 830315 3.3 3.4 3.4 1.5 2.4 4.3 830316 3.3 3.4 3.4 .5 1.6 3.8 830317 3.3 3.3 3.4 .3 1.2 3.6 830318 3.3 3.3 3.4 .1 1.0 3.4 830319 3.3 3.3 3.4 .1 .9 3.0 830320 3.3 3.3 3.4 .5 1.5 3.8 830321 3.3 3.3 3.4 .4 1.7 4.3 830322 3.3 3.3 3.4 o.o 1.2 4.0 830323 3.3 3.3 3.4 .1 1.1 3. 7 830324 3.3 3.3 3.4 .2 1.7 4.4 830325 3.3 3.3 3.4 .7 2.0 4.6 830326 3.3 3.3 3.4 .2 1.3 3.9 830327 3.3 3.3 3.4 .3 1.4 4.4 830328 3.3 3.3 3.4 .2 1.5 4.8 830329 3.3 3.3 3.4 0.0 1.5 4.9 830330 3.3 3.3 3.4 0.0 1.6 5.1 830331 3.3 3.3 3.3 .• 3 2.4 6.3 MONTHLY VALUE 3.3 3.3 3.4 0.0 1.3 6 .3 ----------------------------------------------------------------- A-69 Appendix Table A-10 (Continued). -APRIL 1983 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE ---------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 830401 3.3 3.3 3.4 .2 2.0 6 .2 830402 3.3 3.3 3.4 .1 1.9 6.0 830403 3 .3 3.3 3.4 .1 1.9 6 .3 830404 3 .3 3.3 3.4 1.3 2.6 4.4 830405 3.3 3.4 3.4 1.2 2.7 5.0 830406 3.3 3.4 3.4 1.3 3.3 7.3 830407 3.3 3.4 3.4 1.1 3.1 8.4 830408 3.3 3.3 3.4 .9 3.0 6.8 830409 3 .3 3.3 3.4 1.5 2.8 6 .3 830410 3.3 3.3 3.4 .2 1.9 5.7 830411 3 .3 3.3 3.4 o.o 1.1 2.7 830412 3 .3 3.3 3.4 .3 1.9 4.2 830413 3.3 3.3 3.3 1.3 3.0 6. 7 830414 3.3 3.3 3 .3 1.6 3.4 6.8 830415 3.3 3.3 3.3 .7 2.8 5.1 830416 3.3 3.3 3.4 2.0 3.8 7.0 830417 3.3 3.3 3.4 .6 2.5 5.3 830418 3.3 3.3 3.3 .8 3.1 6.4 830419 3.3 3.3 3.3 1.8 4.0 8.1 830420 3.3 3.3 3.4 1.5 4.1 8.7 830421 3.3 3.3 3.4 1.3 4.6 10.0 830422 3.3 3.3 3.4 1.7 4.1 7.7 830423 3 .3 3.3 3.4 2.5 4.3 7.3 830424 3.3 3.3 3.4 2.5 5.1 10.9 830425 3.3 3.3 3.4 2.0 5.0 10.7 830426 3.3 3.3 3.4 1.5 4.8 10.5 830427 3.3 3.3 3.4 1.5 4.8 10.5 830428 3 .3 3.3 3.4 1.9 3.8 8.1 830429 3.3 3.3 3.4 3.0 4.9 8.1 830430 3.3 3.4 1.6 4.5 MONTHLY VALUE 3.3 3.3 3.4 o.o 3.3 10.9 ----------------------------------------------------------------- A-70 Appendix Table A-ll Datapod intragravel and surface water temperature (C) data summary, at Slough 21 - Upper, RM 142.0, Geocode S32N02W36CCC. -AUGUST 1982 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE MIN MEAN MAX MIN MEAN MAX 820821 3 .7 3.7 3.8 4.0 5.4 7.9 820822 3.7 3.7 3.8 3.9 5.2 7.6 820823 3.7 3.7 3.8 4.8 5.5 6.9 820824 3.7 4.0 4.4 4.6 5.6 7.6 820825 3.9 4.1 4.6 4.8 5.9 8.1 820826 3.9 4.2 4.6 4.9 6 .o 8.3 820827 3.8 4.1 4.6 3.9 5.4 8.3 820828 3.8 4.0 4.3 4.2 5.2 7.1 820829 3.8 4.0 4.2 4.6 5.2 6.2 820830 3.9 4.0 4.1 4.7 5.1 5.5 820831 3.8 4.0 4.3 4.5 5.2 6.7 MONTHLY VALUE 3.7 4.6 3.9 8.3 A·-71 Appendix Table A-ll (Continued). -SEPTEMBER 1982 - -------------------------------------------------------------~---INTRAGRAVEL SURFACE WATER DATE --------------------------------------MIN MEAN MAX MIN ~AN MAX ----------------------------------------------------------------- 820901 3.8 4.0 4.3 4.6. 5.4 6.9 820902 3.8 4.0 4.3 4.4 5.3 7.1 820903 3.8 4.0 4.1 4.6 5.1 6.4 820904 3.8 4.0 4.1 4.2 s.o 6.7 820905 3.8 3.9 4.1 4.0 4.9 6.3 820906 3.8 3.9 4.0 4.4 4.9 5.8 820907 3.8 3.9 4.1 4.4 5.2 7.2 820908 3.8 3.9 4.0 4.4 4.9 5.9 820909 3.8 3.9 4.1 4.4 5.0 6.5 820910 3.8 3.9 4.0 4.2 4.9 6.2 820911 3.8 3.8 3.9 4.1 4.4 5.0 820912 3. 7 3.8 3.9 3.5 4.3 6.0 820913 3.8 3.8 3.9 4.1 4.5 5.6 820914 3.8 3.8 3.9 4.4 4.8 5.5 820915 3.8 4.6 6.0 4. 7 5.9 7. 7 820916 5.6 6.4 7.5 7 .6 7.9 8.2 820917 5.8 6.8 7.5 6.9 7.3 7.8 820918 4.4 5.0 5.9 5.1 6.0 6.9 820919 4.0 4.2 4.4 4.2 4. 7 5.1 820920 4.0 4.2 4.5 4.2 4.6 5.3 820921 3.9 4.2 4.4 4.0 4.5 5.2 820922 3.8 4.1 4.5 3.7 4.4 5.4 820923 3.5 3.8 4.4 2.8 3. 7 5.1 820924 3.3 3.7 4.4 2.5 3.4 4.9 820925 3.4 3.8 4.2 2.6 3.5 4.5 820926 3.7 3.9 4.1 3.4 3.7 4.2 820927 3.7 3.9 4.3 3.2 3.8 4. 7 820928 3 .5 3.7 4.0 2.5 3.2 4.0 820929 3.7 3.9 4.2 3.3 3.7 4.5 820930 3.8 4.0 4.3 3.4 3.9 4.8 MONTHLY VALUE 3.3 4.2 7.5 2.5 4. 7 8.2 ----------------------------------------------------------------- A-72 Appendix Table A-ll (Continued). -OCTOBER 1982 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE ---------------------------------MIN MEAN MAX MIN MEAN MAX ~-----------------------------------~-------~-------------------- 821001 3.8 3.9 4.1 3.4 3.7 4.2 821002 3.7 3.9 4.2 3.2 3.6 4.5 821003 3.6 3.8 4.2 3.0 3.5 4.5 821004 3.5 3.7 4.1 2.4 3.0 4.3 821005 3.4 3.5 3.9 2.4 2.8 3.8 821006 3.4 3.6 3.9 2.3 2.9 3.8 821007 3.5 3.6 3.8 2.6 2.9 3.5 821008 3.4 3.6 3.9 2.1 3.0 3.8 821009 3.3 3.6 3.9 2.2 3.0 3.7 821010 3.5 3.6 3.9 2.8 3.1 3.5 821011 3.3 3.6 3.8 2.0 2.8 3.4 821012 3.4 3.6 3.8 2.4 2.8 3.3 821013 3.5 3.6 3.7 2.4 2.9 3.2 821014 3.5 3.6 3.9 2.4 2.9 3.6 821015 3.4 3.5 3.7 2.2 2.5 3.1 821016 3.5 3.5 3.7 2.3 2.6 2.9 821017 3.5 3.6 3.9 2.5 2.9 3.6 821018 3.5 3.5 3 .7 2.3 2.6 3.2 821019 3.4 3.6 3.8 2.2 2.7 3.1 821020 3.4 3.5 3.6 2.2 2.6 2.9 821021 3.3 3.5 3.5 2.0 2.2 2.5 821022 3.4 3.5 3.6 2.0 2.2 2.6 821023 3.3 3.5 3.5 2.0 2.2 2.4 821024 3.3 3.5 3.6 1.8 2.3 2.6 821025 3.3 3.5 1.9 2.4 821029 3.3 3.5 1.7 2.2 821030. 3.2 3.4 3.5 1.6 1.9 2.2 821031 3.3 3.4 3.5 1.7 2.0 2.3 MONTHLY VALUE 3.2 3.6 4.2 1.6 2.7 4.5 --------------------------------------------------~-------------- A-73 Appendix Table A-ll (Continued). -NOVEMBER 1982 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE --------------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 821101 3.4 3.5 3.6 1.9 2.3 2.6 821102 3.5 3.6 3.8 2.3 2.6 3.0 821103 3.3 3.5 3.6 1.7 2.2 2.6 821104 3.4 3.5 3.7 2.1 2.5 2.9 821105 3.3 3.5 3 .6 1.8 2.2 2.6 821106 3.1 3.2 3.4 1.5 1.8 2.2 821107 3.2 3.2 3.4 1.6 1.9 2.1 821108 3.2 3.3 3.4 1.6 1.9 2.1 821109 3.3 3.5 3.5 2.0 2.3 2.6 821110 3.3 3.4 3.5 1.7 2.2 2.5 821111 3.3 3.5 3.6 1.9 2.3 2.7 821112 3.4 3.5 3.6 2.1 2.5 2.8 821113 3.3 3.5 3.6 2.1 2.5 2.7 821114 3.2 3.5 3.5 1.7 2.4 2.6 821115 3.1 3.3 3.4 1.6 2.0 2.3 821116 3.1 3.2 3.4 1.3 1.7 2.0 821117 2.9 3.0 3.2 1.1 1.5 1.8 821118 2.9 3.0 3.1 1.1 1.4 1.6 821119 2.9 3.0 3.1 1.2 1.4 1.6 821120 3.0 3.1 3.2 1.3 1.5 1.8 821121 3.1 3.2 3.4 1.7 1.9 2.2 821122 3.2 3.3 3.4 1.9 2.2 2.3 821123 3.3 3.4 3.5 2.1 2.4 2.6 821124 3.3 3.4 3.5 1.7 2.2 2.6 821125 3.2 3.3 3.4 1.7 1.9 2.2 821126 3.2 3.3 3.4 1.6 1.9 2.2 821127 3.2 3.3 3.4 1.8 2.0 2.4 821128 3.0 3.2 3.3 1.4· 1.7 1.9 821129 3.0 3.2 3.3 1.6 1.9 2.1 821130 3.0 3.1 3.3 1.6 1.8 2.0 MONTHLY VALUE 2.9 3.3 3.8 1.1 2.0 3.0 ----------------------------------------------------------------- A-74 Appendix Table A-ll (Continued). -DECEMBER 1982 - ----------------~-----------------------------------------------INTRAGRAVEL SURFACE WATER DATE --------------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 821201 3.0 3.2 3.3 1.4 1.8 2.0 821202 2.9 3.0 3.2 1.1 1.4 1.6 821203 2.8 2.9 3.1 1.0 1.2 1.5 821204 2.9 3.0 3.1 1.0 1.3 1.5 821205 2.9 3.1 3.2 1.1 1.6 1.9 821206 3.0 3.2 3.3 1.5 1.7 2.0 821207 3.1 3.3 3.5 1.7 2.0 2.3 . 821208 3.2 3.4 3.5 1.7 2.1 2.4 821209 3 .1 3.3 3.5 1.4 2.0 2.4 821210 2.9 3.0 3.2 .8 1.2 1.6 821211 3.0 3.1 3.3 1.1 1.4 1.8 821212 3.0 3.2 3.3 1.4 1.8 2.0 821213 3.1 3.3 3.3 1.6 1.9 2.2 821214 3.0 3.2 3.3 1.5 1.9 2.2 821215 3.1 3.2 3.4 1.6 2.0 2.3 821216 3.0 3.1 3.3 1.4 1.7 2.0 821217 3.1 3.3 3.4 1.7 2.0 2.2 821218 2.9 3.0 3.3 1.2 1.5 2.0 821219 2.9 3.0 3.1 1.2 1.5 1.7 821220 2.9 3.0 3.2 1.1 1.4 1.7 821221 2.7 2.9 3.0 .8 1.1 1.5 821222 2.7 2.9 3.0 .9 1.1 1.3 821223 2.7 2.9 3.0 1.0 1.2 1.4 821224 2.8 2.9 3.0 1.1 1.3 1.6 821225 2.9 3.0 3.1 1.3 1.5 1.6 821226 2.9 3.0 3.2 1.3 1.6 1.9 821227 3.1 3.2 3.3 1.7 1.9 2.2 821228 2.9 3.1 3.3 1.4 1.8 2.1 821229 3.2 3.3 3.3 2.0 2.1 2.3 821230 3.1 3.2 3 .3 1.7 2.1 2.3 821231 3.1 3.1 3.2 1.6 1.9 2.2 MONTHLY VALUE 2.7 3.1 3.5 .8 1.6 2.4 ----------------------------------------------------------------- A-75 Appendix Table A-ll (Continued). -JANUARY 1 9 83 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE -------------------------------------- MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 830101 3.1 3.2 3.3 1.8 2.1 2.3 830102 3.2 3.2 3.4 1.9 2.2 . 2.3 830103 3.1 3.2 3.3 1. 7 2.0 2.3 830104 2.8 3.0 3.2 1.1 1.5 1.9 830105 2.7 2.8 2.9 .9 1.2 1.5 830106 2.6 2.7 2.9 .8 1.1 1.3 830107 2.6 2.8 2.9 .7 1.0 1.2 830108 2.7 2.8 2.9 .9 1.2 1.4 830109 2.6 2.7 2.9 .9 1.0 1.2 830110 2.6 2.7 2.8 .7 <.05 1.2 830111 2.5 2.7 2.8 .8 1.0 1.3 830112 2.7 2.8 2.8 1.0 1.2 1.3 830113 2.7 2.9 .9 1.2 830114 2.8 3.0 1.5 1.7 830115 2.7 3.0 3.1 1.4 1.6 1.9 830116 3.0 3.2 3.3 1.8 2.0 2.2 830117 3.1 3.2 3.3 1.7 2.0 2.2 830118 3.1 3.3 3.4 1.7 2.1 2.4 830119 3.2 3.3 3.4 2.1 2.3 2.4 830120 3.1 3.2 3.3 1.7 2.0 2.3 830121 3.1 3.2 3.3 1.6 1.9 2.1 830122 2.7 3.0 3.2 .9 1.5 1.8 830123 2.7 3.0 3 .1 .9 1.4 1.8 830124 2.7 3.0 3.2 1.0 1.6 1.9 830125 2.8 3.0 3.2 1.2 1.6 1.9 830126 2.9 3.1 3.3 1.3 1.9 2.1 830127 3.0 3.1 3.3 1.6 1.9 2.1 830128 3.1 3.2 3.3 1.8 2.0 2.3 830129 2.8 3.0 3.2 1.0 1.5 2.0 830130 2.9 3.1 3.2 1.4 1.7 2.1 830131 3.2 3.3 3.4 1.9 2.2 2.6 MONTHLY VALUE 2.5 3.0 3.4 .7 1.6 2.6 ----------------------------------------------------------------- A-76 Appendix Table A-ll (Continued). -FEBRUARY 19 83 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE --------------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 830201 3.2 3.3 3.5 2.1 2.4 2.6 830202 3.2 3.3 3.5 1.9 2.3 2.7 830203 3.2 3.3 3.4 2.0 2.3 2.6 830204 3.2 3.3 3.4 1.9 2.2 2.5 830205 3.1 3.2 3.4 2.0 2.3 2.7 830206 3.0 3.2 3.4 1.8 2.2 2.6 830207 3.1 3.3 3.5 1.7 2.3 2.8 830208 3.1 3.2 3.4 1.8 2.2 2.5 830209 2.7 2.9 3.2 1.1 1.6 2.2 830210 2.6 2.8 3.1 1.0 1.4 2.0 830211 2.6 2.7 2.9 1.1 1.4 1.6 830212 2.6 2.6 2.8 .9 1.2 1.5 830213 2.6 2.7 2.8 1.0 1.2 1.5 830214 2.6 2.7 2.8 1.1 1.3 1.5 830215 2.6 2.7 2.8 .9 1.2 1.5 830216 2.6 2.7 2.8 1.1 1.2 1.4 830217 2.6 2.6 2.7 .9 1.0 1.2 830218 2.6 2.6 2.8 .8 1.0 1.4 830219 2.7 2.9 3.1 1.3 1.6 1.9 830220 2.7 3.0 3.2 1.4 1.9 2.2 830221 2.9 3.1 3.4 1.7 2.1 2.5 830222 2.8 3.0 3.3 1.6 2.0 2.4 830223 2.9 3.0 3.2 1.5 1.8 2.3 830224 2.9 3.1 3.4 1.7 2.2 2.6 830225 2.8 3.0 3.3 1.5 1.9 2.4 830226 2.9 3.1 3.3 1.5 1.9 2.4 830227 2.9 3.1 3.4 1.6 2.0 2.7 830228 3.0 3.2 3.5 1.8 2.3 2.8 MONTHLY VALUE 2.6 3.0 3.5 .8 1.8 2.8 ----------------------------------------------------------------- A-77 Appendix Table A-ll (Continued). -MARCH 1983 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE --------------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 830301 3.0 3.2 3.4 1.8 2.3 2.7 830302 2.8 3.0 3.3 1.3 1.8 2.3 830303 2.6 2.8 3.0 1.2 1.4 1.8 830304 2.6 2.8 3.0 1.1 1.4 1.8 830305 2.7 2.9 3.1 1.2 1.6 2.0 830306 2.6 2.8 3.1 1.1 1.6 2.1 830307 2.7 2.9 3.2 1.3 1.7 2.2 830308 2.5 2.7 3.0 .9 1.3 1.9 830309 2.3 2.6 3.0 .7 1.1 1.8 830310 2.5 2.7 3.0 1.0 1.4 1.9 830311 2.7 2.9 3.3 1.5 1.8 2.4 830312 2.8 3.0 3.4 1.6 2.0 2.7 830313 2.7 3.0 3.4 1.4 1.9 2.8 830314 2.7 3.0 3.4 1.4 1.9 2.7 830315 2.9 3.2 3.7 1.9 2.4 3.3 830316 2.8 3.1 3.5 1.5 2.1 3.1 830317 2.7 3.0 3.5 1.4 1.9 2.9 830318 2.6 2.9 3.5 1.3 1.9 2.9 830319 2.6 2.9 3.4 1.2 1.7 2.7 830320 2.8 3.0 3.5 1.4 2.0 3.0 830321 2.7 3.0 3.6 1.5 2.1 3.1 830322 2.6 2.9 3.6 1.4 1.9 3.1 830323 2.7 2.9 3 .5 1.3 1.8 2.9 830324 2.7 3.0 3.6 1.3 2.1 3.1 830325 2.8 3.1 3.7 1.5 2.2 3.3 830326 2.7 3.0 3.6 1.4 2.0 3.0 830327 2.7 2.9 3. 7 1.4 2.0 3.1 830328 2.6 2.9 3.7 1.4 2.0 3.2 830329 2.6 3.0 3.8 1.3 1.9 3 .3 830330 2.6 3.0 3.8 1.4 2.0 3.4 830331 2.7 3.1 3.9 1.5 2.3 3. 7 MONTHLY VALUE 2.3 2.9 3.9 .7 1.9 3.7 ----------------------------------------------------------------- A-78 Appendix Table A-ll (Continued). -APRIL 1983 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE --------------------------------------MIN MEAN MAX MIN MEAN MAX ----------------------------------------------------------------- 830401 2.6 3.1 3.9 1.5 2.3 3.7 830402 2.7 3.1 3.9 1.5 2.2 3 .7 830403 2.7 3.1 4.0 1.6 2.2 3.7 830404 3.0 3.2 3.6 2.1 2.7 3.2 830405 2.8 3.2 3.8 1.9 2.7 3.6 830406 2.9 3.4 4.6 2.1 3.0 5.1 830407 2.9 3.5 4.8 2.0 3.0 5.4 830408 2.8 3.4 4.3 2.0 3.0 4.5 830409 3.1 3.4 4.2 2.2 2.8 4.4 830410 2.7 3.2 3.9 1.7 2.4 3.7 830411 2.7 3.0 3.5 1.5 2.1 2.7 830412 2.8 3.1 3.6 1.8 2.3 3.0 830413 2.9 3.2 4.0 1.9 2.6 3.9 830414 3.0 3.4 4.4 2.3 3.0 4.7 830415 2.9 3.3 3.8 2.2 2.8 3.6 830416 3.0 3.5 4.3 2.4 3.1 4.4 830417 2.7 3.2 3.9 1.8 2.7 3.8 830418 2.9 3.3 4.0 2.2 2.8 4.0 830419 3.1 3.6 4. 7 2.5 3.3 5.5 830420 3.2 3.8 4.6 2.4 3.5 5.1 830421 3.4 4.0 5.2 2.6 3.8 6.0 830422 3.5 3.9 4.7 2.9 3.8 5.2 830423 3.5 3.9 4.6 3.1 3.8 4.8 830424 3.4 4.1 5.7 2.9 4.3 7.2 830425 3.3 4.2 5.6 2.7 4.3 6.9 830426 3.3 4.1 5.5 2.7 4.2 7.0 830427 3.2 4.2 5.6 2.7 4.3 6.9 830428 3.5 3.9 5.0 3.0 4.0 5.8 830429 3.8 4.2 5.0 3. 7 4.4 5.8 830430 3.3 4.2 5.7 2.8 4.4 7.1 MONTHLY VALUE 2.6 3.6 5.7 1.5 3.2 7.2 ----------------------------------------------------------------- A-79 Appendix Table A-ll (Continued). -MAY 1983 - -----------------------------------------------------------------INTRAGRAVEL SURFACE WATER DATE --------------------------------------MIN MEAN MAX MIN MEAN MAX --------~----------------------------------------~-------~------ 830501 3.2 4.3 5.7 2.8 4.5 7.3 830502 4.0 4.3 5.1 4.1 4. 7 5.9 830503 .4 3.2 5.0 .1 3.0 5.7 830504 .5 1.3 3.3 0.0 .8 3.0 830505 2.7 3.8 5.7 2.4 3.6 6.1 830506 3.4 4.2 5.8 3.0 4.1 6.4 830507 3.5 4.7 7.0 3.0 4. 7 7.9 830508 3.6 4.8 7.3 3.4 4.9 8.3 830509 4.0 5.0 7.5 3.9 5.2 8.2 830510 4.1 5.0 7.1 4.1 5.2 7.9 830511 3.9 5.1 7.4 3.8 5.3 8.6 83 0512 4.3 5.2 6.4 4.3 5.4 6.9 830513 4.2 5.4 8.0 4.2 5.7 9.2 830514 4.3 5.3 7.2 4.3 5.6 7.9 830515 4.1 5.1 6.6 4.1 5.4 7.2 830516 3.2 4.9 7.0 2.9 5.1 7.8 830517 4.1 4.8 5.8 4.2 5.0 6.2 83 0518 3.8 4.9 6.3 3.8 5.1 6.8 830519 3.9 4.9 6.3 3.9 5.2 7.0 830520 3.8 5.1 6.8 3.8 5.3 7 .6 830521 3.9 4.9 6.5 3.9 5.1 7.0 830522 4.1 5.1 7.2 4.2 5.3 7.9 830523 4.1 5.1 6.9 4.1 5.3 7.5 830524 3.9 5.3 7.2 3.9 5.5 7.8 830525 3.5 5.0 7.0 3 .3 5.1 7.6 830526 4.2 5.0 6.6 4.3 5.2 7.2 83 0527 3.8 4.9 6.6 3.7 5·.o 7.2 830528 3.6 5.1 7.0 3.5 5.4 7. 7 830529 3.8 5.3 6.9 3.8 5.5 7.5 830530 4.5 5.8 7.8 4.6 6.2 8.6 830531 7.2 7.5 7.8 7.6 7.9 8.4 MONTHLY VALUE .4 4.8 8.0 0.0 5.0 9.2 -----~---------------------------------------------------------- A-80 APPENDIX B Incubation Habitat: Data collected within standpipes and at adjacent surface water locations. Appendix B consists of raw data (Appendix Ta.bles B-5 to B-8) and corresponding summary tables (Appendix Tables B-1 to B-4). Summary tables precede the raw data tables in this Appendix for ease of reference. These data were collected by ADF&G personnel during two sampling periods (April 15-18 and April 29-May 2) in spring, 1983. In the summary tables, sampling periods are referred to as 11 first 11 and 11 Second 11 , respectively. Appendix Table B-1 Appendix Table 8-2 Appendix Table B-3 Appendix Table B-4 Appendix Table B-5 Appendix Table B-6 Appendix Table B-7 LIST OF APPENDIX 8 TABLES Summary of intragravel and corresponding surface water quality data collected along the left bank of specific sites in sloughs 8A, 9, 11 and 21 during early (April 15-18) and late (April 29-May 2) sampling periods in spring, 1983 .......................•....... 8-1 Summary of intragravel and correspond~ng surface water quality data collected along the right bank of specific sites in sloughs 8A, 9, 11 and 21 during early (April 15-18) and late (April 29-May 2) sampling periods in spring, 1983 .................•............. B-2 Summary of intragravel and corresponding surface water quality data collected specific sites in sloughs 8A, 9, 11 and 21 during early (April 15-18) and late (April 29- May 2) sampling periods in spring, 1983 ....... B-3 Summary of intragravel and corresponding surface water quality data collected in sloughs 8A, 9, 11 and 21 during early (April 15-18) and late (April 29- May 2) sampling periods in spring, 1983 ....... B-5 lntragravel and corresponding surface water quality measurements collected in Slough 8A (RM 125.9, Geographic Code S30N03W30BCD) of the Susitna River during two sampling periods {April 15-18) and late (April 29-May 2) sampling periods in spring, 1983 ............................... 8-6 Intragravel and corresponding surface water quality measurements collected in Slough 9 (RM 129.2, Geographic Code S30N03W09DC8) of the Susitna River during two sampling periods (April 15-18) and late (April 29-May 2) sampling periods in spring, 1983 •....•......................... B-7 Intragravel and corresponding surface water quality measurements collected in Slough 11 (RM 135.3, Geographic Code S31N02W19DDD) of the Susitna River during two sampling periods (April 15-18) and late (April 29-May 2) sampling periods in spring, 1983 ............................... B-8 Appendix Table B-8 Intragravel and corresponding surface water quality measurements collected in Slough 21 (RM 142.0, Geographic Code S31N02W02AAA) of the Susitna River during two sampling periods (April 15-18) and late (April 29-May 2) sampling periods in spring, 1983 .................•....•....... B-10 co I ,_. Appendix Table B-1 Summary of intragravel and corresponding surface water quality data collected along the left bank of specific sites in sloughs SA, 9, 11 and 21 during early (April 15-18) and late (April 29-May 2) sampling periods in spring, 1983. Sampling Slough lntragravel Water Surface Water Slough Site Period Bank Variable Min Mean Max SD N Min Mean Max SD N Slough 8A A Early Left Dissolved Oxygen 4.0 4.3 4.6 0.2 10 7.4 9.5 10.5 1.0 10 A Late Left Dissolved Oxygen 4.0 4.4 4.6 0.2 10 10.5 11.1 11.3 0.3 10 A Early Left Water Temperature 2.0 2.3 2.5 0.2 10 2.0 2.4 3.0 0.384 10 A Late Left Water Temperature 3.0 3.6 5.8 0,8 10 4.2 4.6 5.0 0.245 10 A Late Left Specific Conductance 236 254 258 6 10 178 183 188 3.0 10 A Early Left pH 7.2 7.3 10 7.1 7.3 10 A Late Left pH 6.4 6.6 5 6.4 6.8 5 Slough 9 B Early Left Dissolved Oxygen 5.5 6.2 6.8 0.4 10 9.0 9.5 10.0 0.3 10 B Late Left Dissolved Oxygen 5.3 6.0 6.6 0.5 10 10.4 10.7 1 o. 9 0.1 10 c Late Left Dissolved Oxygen 1.3 3.3 6.4 27 3 8.0 8.1 8.2 0.1 3 B Early Left Water Temperature 3.0 3.9 4.9 0.6 10 5.0 5.2 5.4 0.129 10 B Late Left Water Temperature 3.5 4.0 4.5 0.3 10 6.0 6.3 6.5 0.204 10 c Late Left Water Temperature 4.0 4.1 4.2 o. 1 3 5.2 5.6 6.2 0.513 3 B Late Left Specific Conductance 201 217 236 15 10 153 157 163 3,0 10 c Late Left Specific Conductance 218 242 257 21 3 192 196 198 3.0 3 B Early Left pH 6.5 7.0 10 6.5 7.0 10 B Late Left pH 6.2 6.4 5 5.9 6.3 5 Slough 11 A Early Left Dissolved Oxygen 7.4 7.9 8.4 0.3 10 11.3 11.5 11.6 0.1 10 A Late Left Dissolved Oxygen 6.7 7.1 7.5 0.3 10 1 o. 9 11.1 11.2 0.1 10 B Early Left Dissolved Oxygen 6.2 9.0 10.5 1.1 10 9.8 10.2 11.0 6.4 10 B Late Left Dissolved Oxygen a. 1 8.9 9.2 0.3 10 10.8 11.1 11.3 0.2 10 A Early Left Water Temperature 2.5 2.8 3.0 0.1 10 3.0 3.1 3.2 0.103 10 A Late Left Water Temperature 3.5 4.7 7.2 1.0 10 7.5 7.8 8.2 0.271 10 B Early Left Water Temperature 2.0 2.1 2.2 0.1 10 2.0 2.0 2.0 0.000 10 B Late Left Water Temperature 3.5 4.0 4.5 0.4 10 6.0 6.1 6.2 0.097 10 A Late Left Specific Conductance 245 260 268 6 10 241 245 247 2 10 B Early Left Specific Conductance 258 268 271 4 8 198 262 285 25 9 A Early Left pH 7.1 7.3 10 7.1 7.2 10 Slough 21 A Early Left Dissolved Oxygen 2.3 6.1 6.9 1.4 10 6.2 8.5 9.4 1.1 10 A Late Left Dissolved Oxygen 6.7 7.0 7.4 0.2 9 7.3 9.2 10.2 1 • 1 9 A Early Left Water Temperature 2.5 3.0 3.5 0.3 10 2.5 4.5 5.5 1 .047 10 A Late Left Water Temperature 2.5 2.9 4.0 0.5 9 2.5 4.8 6.8 1 .571 9 A Late Left Specific Conductance 236 242 248 4 9 245 251 262 5 9 A Early Left pH 6.6 7.1 10 6.6 7.2 10 A Late Left pH 6.6 6.8 5 6.6 6.8 5 Appendix Table B-2 Slough Site Slough 8A A A A A A A A 00 Slough 9 A I N A A A A A A Slough 11 B B c c B B c c B c B c Slough 21 A A A A A A A Summary of intragravel and corresponding surface water quality data collected along the right bank of specific sites in sloughs 8A, 9, 11 and 21 during early (April 15-18) and late (April 29-May 2} sampling periods in spring, 1983. Sampling Slough lntragravel Water Surface Water Period Bank Variable Min Mean Max SD N Min Mean Max so N Early Right Dissolved Oxygen 4.2 5.0 9.2 1.5 10 10.2 11.1 11.6 0.4 10 Late Right Dissolved Oxygen 4.4 4.9 7.9 1.1 10 11.3 11.4 11.6 o. 1 10 Early Right Water Temperature 0.4 1.8 2.0 0.5 10 0.3 0.5 1.8 0.478 10 Late Right Water Temperature 2.2 2,9 3.2 0.3 10 2.0 3.7 4.5 0.696 10 Late Right Specific Conductance 215 246 255 11 10 164 179 184 6 10 Early Right pH 7.2 7.3 10 7. 1 7.3 10 Late Right pH 6.7 6.8 5 6.6 6.8 5 Early Right Dissolved Oxygen 3.7 4.9 6.7 0.9 10 9.3 9.6 9.8 0.2 10 Late Right Dissolved Oxygen 7. 1 8,8 10.8 1.3 10 1 o. 9 11.0 11.0 0.1 10 Early Right Water Temperature 4.1 4.3 5.2 0.4 10 5.1 5.3 5.3 0.070 10 Late Right Water Temperature 3.5 4.0 5.0 0.5 10 5.8 6.0 6.2 0.133 10 Late Right Specific Conductance 128 156 186 19 10 146 153 156 3 10 Early Right pH 6.8 7. 1 10 6.8 7.0 10 Late Right pH 6.2 6.6 5 6.3 6.8 5 Early Right Dissolved Oxygen 9.5 10.0 10.8 0.4 10 9.8 10.3 10.6 0.2 10 Late Right Dissolved Oxygen 9.4 9.8 10.4 0.3 10 10.3 10.8 11.0 0.2 10 Early Right Dissolved Oxygen 1.3 4.9 11.2 4.5 4 11 • 0 11.6 12.4 0.6 4 Late Right Dissolved Oxygen 1.1 4.3 10.2 4.1 4 10.5 10.6 10.8 0.1 4 Early Right Water Temperature 1.8 2.1 2.2 o. 1 10 1.8 2.0 2.2 0,094 10 Late Right Water Temperature 3.5 4.2 4.8 0.4 10 5.2 5.7 6.2 0.357 10 Early Right Water Temperature 2.2 2.4 2.5 o. 1 4 1. 8 1.9 2.0 0.100 4 Late Right Water Temperature 4.0 4.7 5.2 0.6 4 5.2 5.4 5.5 0.173 4 Early Right Specific Conductance 267 273 280 5 10 267 269 271 2 10 Late Right Specific Conductance 159 191 234 35 4 232 239 245 5 4 Early Right pH 6.8 6.8 1 6.3 6.3 1 Early Right pH 6.2 6.4 4 6.3 6.4 4 Early Right Dissolved Oxygen 5.0 7.6 8.8 1.1 10 9.5 9.8 1 o.o 0,2 10 Late Right Dissolved Oxygen 7.3 7.7 8.4 0.4 10 10.3 10.5 10.6 0.1 10 Early Right Water Temperature 4.0 4.4 5.0 0.3 10 5.2 5.2 5.2 0.000 10 Late Right Water Temperature 3.8 4.1 4.5 0.3 10 6.8 7.1 7.5 0.207 10 Late Right Specific Conductance 174 201 216 16 10 238 243 248 3 10 Early Right pH 6.9 7. 1 10 6.7 7.2 10 Late Right pH 6.8 6.8 5 6.7 6.9 5 OJ ! w Appendix Table B-3 Summary of intragravel and corresponding surface water quality data collected at specific sites in sloughs SA, 9, 11 and 21 during early (April 15-18) and late (April 29-May 2) sampling periods in spring, 1983. Sampling lntragravel Water Surface Water Slough Site Period Variable Min Mean Max so N Min Mean Max so N Slough 8A A Early Dissolved Oxygen 4.0 4.6 9,2 1.1 20 7.4 10.3 11.6 1.1 20 A Late Dissolved Oxygen 4.0 4.6 7.9 0.8 20 10.5 11.2 11.6 0.2 20 A Early Water Temperature 0.4 2.0 2.5 0.5 20 0.3 1.4 3.0 1.0 20 A Late Water Temperature 2.2 3.2 5.8 0.7 20 2.0 4.1 5.0 0.7 20 A Late Specific Conductance 215 250 258 10 20 164 181 188 5 20 A Early pH 7.2 7.3 20 7.1 7.3 20 A Late pH 6.4 6,8 10 6.4 6.8 10 Slough 9 A Early Dissolved Oxygen 3.7 4.9 6.7 0.9 10 9 •. 3 9.6 9.8 0.2 10 A Late Dissolved Oxygen 7.1 8.8 10.8 1 .3 10 10.9 11.0 11.0 0.1 10 B Early Dissolved Oxygen 5.5 6.2 6.8 0.4 10 9.0 9.5 10.0 0.3 10 B Late Dissolved Oxygen 5.3 6.0 6.6 0.5 10 10.4 1 o. 7 10.9 0.1 10 c Late Dissolved Oxygen 1.3 3.3 6.4 2.7 3 8.0 8.1 8.2 o. 1 3 A Early Water Temperature 4.1 4.3 5.2 0.4 10 5.1 5.3 5.3 0.1 10 A Late Water Temperature 3.5 4.0 5.0 0.5 10 5.8 6.0 6.2 0.1 10 8 Early Water Temperature 3.0 3.9 4.9 0.6 10 5.0 5.2 5.4 o. 1 10 B Late Water Temperature 3.5 4.0 4.5 0.3 10 6.0 6.3 6.5 0.2 10 c Late Water Temperature 4.0 4.1 4.2 0.1 3 5.2 5.6 6.2 0.5 3 A Late Specific Conductance 128 156 186 19 10 146 153 156 3 10 B Late Specific Conductance 201 217 236 15 10 153 157 163 3 10 c Late Specific Conductance 218 242 257 21 3 192 196 198 3 3 A Early pH 6.8 7.1 10 6.8 7.0 10 A Late pH 6.2 6.6 5 6.3 6,8 5 8 Early pH 6.5 7.0 10 6.5 7.0 10 B Late pH 6.2 6.4 5 5.9 6.3 5 Slough 11 A Early Dissolved Oxygen 7.4 7.9 8,4 0.3 10 11.3 11.5 11.6 0.1 10 A Late Dissolved Oxygen 6.7 7. 1 7.5 0.3 10 10.9 11.1 11.2 0.1 10 B Early Dissolved Oxygen 6.2 9.5 10.8 1.0 20 9.8 10.3 11.0 0.3 20 B Late Dissolved Oxygen 8.1 9.3 10.4 0.6 20 10.3 1 o. 9 11.3 0.2 20 c Early Dissolved Oxygen 1.3 4.9 11.2 4.5 4 11.0 11.6 12.4 0.6 4 c Late Dissolved Oxygen 1.1 4.3 1 o. 2 4.1 4 10.5 10.6 10.8 0.1 4 A Early Water Temperature 2.5 2.8 3,0 0.1 10 3.0 3.1 3.2 o. 1 10 A Late Water Temperature 3.5 4.7 7.2 1.0 10 7.5 7.8 8.2 0.3 10 8 Early Water Temperature 1.8 2.1 2.2 o. 1 20 1.8 2.0 2.2 o. 1 20 B Late Water Temperature 3.5 4.1 4.8 0.4 20 5.2 5.9 6.2 0.3 20 c Early Water Temperature 2.2 2.4 2.5 o. 1 4 1.8 1.9 2.0 o. 1 4 c Late Water Temperature 4.0 4.7 5.2 0.6 4 5.2 5.4 5.5 0.2 4 A Late Specific Conductance 245 260 268 6 10 241 245 247 2 10 B Early Specific Conductance 258 270 280 5 18 198 265 285 17 19 c Late Specific Conductance 159 191 234 35 4 232 239 245 5 4 A Early pH 7.1 7.3 10 7.1 7.2 10 B Early pH 6.8 6.8 1 6.3 6.3 1 c Early pH 6.2 6.4 4 6.3 5.4 4 Appendix Table B-3 (Continued) Sampling lntragravel Water Surface Water Slough Site Period Variable Min Mean Max SD N Min Mean Max SD N 51 ough 21 A Early Dissolved Oxygen 2.3 6.9 8.8 1.4 20 6.2 9.1 10.0 1 .o 20 A Late Dissolved Oxygen 6.7 7.4 8.4 0.5 19 7.3 9.9 10.6 1.0 19 A Early Water Temperature 2.5 3.7 5.0 0.8 20 2.5 4.8 5.5 0.8 20 A Late Water Temperature 2.5 3.5 4.5 0.7 19 2.5 6.0 7.5 1.6 19 A Late Specific Conductance 174 221 248 24 19 238 247 262 6 19 A Early pH 6.6 7.1 20 6.6 7.2 20 A Late pH 6.6 6.8 10 6.6 6.9 10 OJ I Ul Appendix Table B-4 Summary of intragravel and corresponding surface water quality data collected in sloughs 8A, 9, 11 and 21 during early (April 15-18) and late (April 29-May 2) sampling periods in spring, 1983. Sampling lntragravel Water Surface Water Slough Period Variable Min Mean Max SD N Min Mean Max SD N Slough 8A Early Dissolved Oxygen 4.0 4.6 9.2 1.1 20 7.4 10.3 11.6 1.1 20 Late Dissolved Oxygen 4,0 4.6 7.9 0.8 20 10.5 11.2 11.6 0.2 20 Early Water Temperature 0.4 2.0 2.5 0,5 20 0.3 1.4 3.0 1.0 20 Late Water Temperature 2,2 3.2 5.8 0,7 20 2.0 4.1 5.0 0.7 20 Late Specific Conductance 215 250 258 10 20 164 181 188 5 20 Early pH 7.2 7.3 20 7.1 7.3 20 Late pH 6.4 6.8 10 6.4 6.8 10 Slough 9 Early Dissolved Oxygen 3.7 5.6 6.8 0.9 20 9.0 9.6 10.0 0.2 20 Late Dissolved Oxygen 1.3 6.9 10.8 2.3 23 8.0 10.5 11 .o 1.0 23 Early Water Temperature 3.0 4,1 5.2 0.5 20 5.0 5,2 5.4 0.1 20 Late Water Temperature 3,5 4.0 5.0 0.4 23 5.2 6.1 6,5 0.3 23 Late Specific Conductance 128 194 257 39 23 146 160 198 14 23 Early pH 6,5 7.1 20 6.5 7.0 20 Late pH 6.2 6.6 10 5.9 6.8 10 Slough 11 Early Dissolved Oxygen 1.3 8.5 11.2 2.2 34 9.8 10.8 12.4 0.7 34 Late Dissolved Oxygen 1.1 5.1 10.4 2.2 34 10.3 11 • 0 11.3 0.2 34 Early Water Temperature 1.8 2.3 3.0 0.4 34 1.8 2,3 3.2 0.5 34 Late Water Temperature 3.5 4.3 7.2 0.7 34 5,2 6.4 8.2 1.0 34 Early Specific Conductance 258 270 280 5 18 198 265 285 17 19 Late Specific Conductance 159 240 268 87 14 232 243 247 4 14 Early pH 6.2 7.3 15 6.3 7.2 15 Slough 21 Early Dissolved Oxygen 2,3 6.9 8.8 1.4 20 6.2 9.1 10.0 1.0 20 Late Dissolved Oxygen 6.7 7.4 8.4 8.5 19 7,3 9.9 10.6 1.0 19 Early Water Temperature 2.5 3.7 5,0 0.8 20 2.5 4.8 5.5 0.8 20 Late Water Temperature 2.5 3.5 4.5 0.7 19 2.5 6.0 7.5 1.6 19 Late Specific Conductance 174 221 248 24 19 238 247 262 6 19 Early pH 6.6 7.1 20 6,6 7.2 20 Late pH 6.6 6.8 10 6.6 6.9 10 ApjJendix Table B-5. Intragravel and corresponding surface water quality measurements collected ln Slough 8A ( R}! 125.9, Geographic Code S30N03W30BCD) of the Susitna River during two samp 1 ing periods (April 15-18 and April 29-May 2) in spring, 1983. ------------------------------------------------------------------------------------------------------INTRAGRAVEL SURFACE WATER ------------------------------------------------------------STANDPIPE SAMPLING SLOUGH WATER D.O. SPEC.COND. WATER D.O. SPEC.COND. SITE NUMBER DATE BANK pH TEMP( C) (mg/1) (umhos/cm) pH TENP(C) (mg/1) (umhos/cm) ------------------------------------------------------------------------------------------------------A 01 830417 LEFT 7 .3 2.0 4.4 7.3 2.0 10.4 A 02 830417 LEFT 7 .2 2.0 4.2 7 .3 2.2 9.2 A 03 830417 LEFT 7.2 2.2 4.3 7 .3 2.0 10.5 A 04 830417 LEFT 7.2 2.2 4.5 7.2 2.5 7.4 A 05 830417 LEFT 7 .2 2.5 4.6 7.3 2.5 9.5 A 06 830417 LEFT 7.2 2.5 4.4 7 .3 2.2 10.4 A 07 830417 LEFT 7.2 2.5 4.2 7.2 2.2 9.5 A 08 830417 LEFT 7 .2 2.5 4.3 7 .3 3.0 8.4 A 09 830417 LEFT 7 .2 2.5 4.3 7.2 3.0 9.4 A 10 830417 LEFT 7 .2 2.5 4.0 7 .1 2.0 10.2 A 01 830417 RIGHT 7 .2 .4 9.2 7.3 .3 11.3 A 02 830417 RIGHT 7 .2 1.8 4.5 7.2 .3 11.4 A 03 830417 RIGHT 7 .3 1.8 4.8 7 .3 .3 11.3 A 04 830417 RIGHT 7 .2 2.0 4.4 7.2 .3 11.4 A 05 830417 RIGHT 7.2 1.8 4.5 7.2 .3 11.2 A 06 830417 RIGHT 7 .2 2.0 4.8 7 .2 .3 11.6 A 07 830417 RIGHT 7 .2 1.8 4.6 7.2 .3 11.4 A 08 830417 RIGHT 7 .2 2.0 4.2 7.1 .8 10.8 A 09 830417 RIGHT 7.2 2.0 4.4 7.1 .5 10.2 A 10 830417 RIGHT 7.2 2.0 4.4 7.2 1.8 10.6 A 01 830501 LEFT 6.4 5.8 4.3 236 6.4 5.0 10.5 17 8 A 02 830501 LEFT 6.4 3.8 4.6 255 6.5 5.0 11.0 181 A 03 830501 LEFT 6.4 3.8 4.3 252 6.6 4.5 11.2 181 A 04 830501 LEFT 6. 5 3.2 4.3 257 6.8 4.5 10.9 188 A 05 830501 LEFT 6.6 3.2 4.4 257 6.8 4.5 11.3 184 A 06 830501 LEFT 3.2 4.4 257 4.5 11.3 184 A 07 830501 LEFT 3.0 4.3 258 4.5 11.3 181 A 08 830501 LEFT 3.2 4.5 257 4.5 11.3 184 A 09 830501 LEFT 3.2 4.4 257 4.5 11.2 184 A 10 830501 LEFT 3.2 4.0 257 4.2 11.2 186 A 01 830501 RIGHT 6. 7 2.2 7.9 215 6.6 2.0 11.3 164 A 02 830501 RIGHT 6.8 2.8 4.6 249 6.8 3 .5 11.3 183 A 03 830501 RIGHT 6. 7 2.8 4.6 249 6.8 3 .5 11.3 183 A 04 830501 RIGHT 6.8 2.8 4.5 249 6.6 3.8 11.4 181 A 05 830501 RIGHT 6.8 3.0 4.7 248 6.7 3.8 11.3 181 A 06 830501 RIGilT 2.8 4.5 249 3.2 11.3 184 A 07 830501 RIGHT 3.2 4,6 246 3. 8 11.4 181 A 08 830501 RIGHT 3.0 4.4 251 4.2 11.5 17 9 A 09 830501 RIGHT 3.2 4.6 250 4.2 11.6 179 A 10 830501 RIGHT 3.0 4.4 255 4.5 11.3 181 ------------------------------------------------------------------------------------------------------ B-6 Appendix Table B-6. lntragravel and corresponding surface water quality measurements collected in Slough 9 (RM 129.2, Geographic Code S30N03WO 9DCB) of the Susitna River during two sampling periods (April lS-18 and April 29-Hay 2) 1n spring, 1983. -----------------------------------------------------------------------------------------INTRAGRAVEL SURFACE WATER --------------------------------------------------------------STANDPIPE SAMPLING SLOUGH WATER D.O. SPEC.COND. WATER D.O. SPEC.COND. SITE NUMBER DATE BANK pH T~IP(C) (mg/1) (umhos/cm) pH TEHP(C) ( mg /l) ( umho s/ em) ------------------------------------------------------------------------------------------------------A 01 830418 RIGHT 7.0 4.2 3.7 6.9 S.2 9.4 A 02 830418 RIGHT 7.1 4.4 4.0 7.0 S.3 9.8 A 03 830418 RIGHT 7.0 4.2 4.7 7 .o S.2 9.8 A 04 830418 RIGHT 6.8 4.7 4.1 6.9 S.3 9.6 A OS 830418 RIGHT 6.8 4.2 4.9 6.8 S.3 9.7 A 06 830418 RIGHT 6.9 4.1 5.1 6.8 s .1 9.8 A 07 830418 RIGHT 6.8 4.2 5 .1 6.8 S.3 9.3 A 08 830418 RIGHT 6.9 4.1 5.4 7.0 S.3 9.4 A 09 830418 RIGHT 6.8 4.1 5.4 6.8 S.3 9.S A 10 830418 RIGHT 7.0 S.2 6. 7 6. 9 S.3 9.7 A 01 830S02 RIGHT 6.4 4.S 7.1 184 6.3 6.0 10.9 146 A 02 830S02 RIGHT 6.2 3 .s 7. 7 1S2 6 .3 S.8 10.9 1S6 A 03 830S02 RIGHT 6.5 4.2 7 .2 186 6.8 6.0 11.0 1S5 A 04 830S02 RIGHT 6.6 4.S 8.0 171 6.S 6.0 11.0 1S5 A OS 830S02 RIGHT 6 .6 3.5 8.6 1S8 6.4 5.8 11.0 1S6 A 06 830S02 RIGHT 3.8 10.8 128 6.0 10.9 1S1 A 07 830S02 RIGHT 3.8 9.8 147 6.2 10.9 1S4 A 08 830S02 RIGHT 3.S 9.S 1S8 6.2 10.9 1S4 A 09 830S02 RIGHT 4.2 10.4 141 6.0 11.0 15S A 10 83 osoz RIGHT s.o 9.3 136 6,0 11.0 !50 B 01 830418 LEFT 6.8 3.0 5.S 6.8 5.0 9.S B 02 830418 LEFT 6.S 4.0 5.8 6.5 5.3 10.0 B 03 830418 LEFT 6.8 4.3 6. 7 6.8 S.2 9.2 B 04 830418 LEFT 6 .6 4.9 6 .1 6.6 5.2 9.6 B OS 830418 LEFT 6.8 3.8 6.4 6.8 5.1 9.6 B 06 830418 LEFT 7 .o 3.1 6.8 7.0 S.1 9.0 B 07 830418 LEFT 6.8 3.9 6.3 6.8 S.2 9.6 B 08 83 0418 LEFT 6.7 4.1 6 .3 6o7 5.4 9.6 B 09 830418 LEFT 6.7 4.6 6.1 6. 7 5.4 9.4 B 10 830418 LEFT 6.8 3.8 6.4 6.8 S.2 9.7 B 01 830S02 LEFT 6 .3 3.S 5.7 226 6.2 6.0 1 0. 7 155 ll 02 830S02 LEFT 6.4 4.0 5.4 236 6.3 6.0 1 0. 7 lSS B 03 830S02 LEFT 6.2 4.S 5.S 233 5.9 6.2 10.5 163 B 04 830502 LEFT 6.2 4.S 5.3 236 6.3 6 .2 10.7 1S 7 B 05 830S02 LEFT 6 .3 3.8 5.8 221 6.2 6.5 10.7 1S6 B 06 830502 LEFT 3.8 6.6 203 6.2 10.4 163 B 07 830S02 LEFT 3.8 6.3 203 6.5 10.7 153 B 08 830S02 LEFT 4.0 6.4 206 6.2 10.8 1S 7 B 09 83 0502 LEFT 4.0 6 .1 206 6. 5 10.9 1 56 B 10 830502 LEFT 4.2 6.6 201 6.S 10.6 156 c 01 830502 LEFT 4.2 6.4 218 6.2 8.2 192 c 02 83 OS02 LEFT 4.0 2.3 2S7 5.5 8.0 197 c 03 830S02 u:n 4.0 1.3 250 5.2 8.0 198 ------------------------------------------------------------------------------------------------------ B-7 Appendix Table B-7. Intragravel and corresponding surface water quality measurements collected in Slough 11 (RM 135.3' Geographic Code S31N02Wl9DDD) of the Susitna River during two sampling periods (April 15-18 and April 29-May 2) in spring, 1983. ------------------------------------------------------------------------------------------------------INTRAGRAVEL SURFACE WATER --------------------------------------------------------------STANDPIPE SAMPLING SLOUGH WATER D.O. SPEC.COND. WATER D.O. SPEC.COND. SITE NUMBER DATE BANK pH TEMP( C) (mg/1) ( urnhos/cm) pH TmP(c) (mg/1) ( umho s /ern) ------------------------------------------------------------------------------------------------------A 01 830417 LEFT 7 .3 2.8 7 .8 7.2 3.2 11.6 A 02 830417 LEFT 7.2 3.0 7.4 7.1 3.2 11.3 A 03 83 0417 LEFT 7.1 2.8 8.4 7 .1 3.2 11.4 A 04 830417 LEFT 7.1 2.8 7.8 7 .1 3.2 11.3 A 05 830417 LEFT 7.1 2.5 7.8 7 .1 3.2 ll.5 A 06 83 0417 LEFT 7.2 3.0 7.8 7 .1 3.2 11.4 A 07 83 0417 LEFT 7.2 2.8 7.6 7.2 3.0 11.4 A 08 83 0417 LEFT 7.2 2.8 8.3 7 .2 3.0 11.5 A 09 830417 LEFT 7.2 2.8 8.2 7.2 3.0 11.6 A 10 83 0417 LEFT 7.1 3.0 7.5 7.2 3.0 11.6 A 01 830430 LEFT 4.8 6.7 260 7.8 11.2 244 A 02 830430 LEFT 5.0 7.4 262 7 .5 11.2 246 A 03 830430 LEFT 4.0 6.7 264 7.5 11.1 246 A 04 830430 LEFT 4.0 7.0 26 7 7.5 10.9 246 A 05 83043 0 LEFT 3 .5 7.5 268 7.8 11.1 244 A 06 830430 LEFT 4.5 7.3 263 7.8 11.1 247 A 07 830430 LEFT 4.8 7.2 257 8.0 11.1 246 A 08 830430 LEFT 4.8 7 .3 257 8.0 11.2 243 A 09 830430 LEFT 4.8 7 .3 257 8.2 11.0 241 A 10 830430 LEFT 7.2 6.9 245 8.2 11.1 241 B 01 830415 LEFT 2.2 9.3 2.0 10.0 B 02 830415 LEFT 2.0 9.3 2.0 10.2 198 B 03 830415 LEFT 2.0 8.8 271 2.0 10.0 285 B 04 830415 LEFT 2.0 9.0 265 2.0 10.1 26 9 B 05 830415 LEFT 2.0 8.8 26 7 2.0 9.8 26 7 B 06 830415 LEFT 2.2 9.3 271 2.0 10.2 26 9 E 07 830415 LEFT 2.0 6.2 258 2.0 9.8 26 7 B 08 830415 LEFT 2.2 9.5 271 2.0 10.4 26 7 B 09 830415 LEFT 2.2 10.5 269 2.0 10.6 26 9 B 10 830415 LEFT 2.2 9.5 26 9 2.0 11.0 26 7 B 01 830415 RIGHT 6. 8 2.0 9.8 26 7 6 .3 2.0 9.8 26 7 B 02 830415 RIGHT 2.0 10.0 271 2.2 10.6 26 7 B 03 830415 RIGHT 2.2 9.5 26 9 2.0 10.2 26 7 B 04 83 0415 RIGHT 2.0 9.6 26 7 2.0 10.6 271 B 05 83 0415 RIGHT 1.8 10.8 271 1.8 10.4 26 9 B 06 83 0415 RIGHT 2.0 10.6 273 2.0 10.4 26 9 B 07 830415 RIGHT 2.2 10.1 276 2.0 10.5 271 B 08 830415 RIGHT 2.2 9.6 276 2.0 10.2 26 7 B 09 830415 RIGHT 2.2 10.1 27 8 2.0 10.1 26 7 !\ 10 83 0415 RIGHT 2.2 9.7 280 2.0 10.2 271 B Ul 83 0429 RIGHT 4.0 9.7 5.8 10.3 B 02 830429 RIGHT 4. 5 9.4 5.2 10.5 B 03 830429 RIGHT 3.8 9.5 5.2 10.8 B 04 830429 RIGIIT 4.2 10.1 5.5 10.9 B 05 830429 RIGHT 4.5 10.4 5.2 11.0 ------------------------------------------------------------------------------------------------------ B-8 Appendix Table B-7. (Cant.) ------------------------------------------------------------------------------------------------------INTRAGRA VEL SURFACE WATER ----------------------------------------------------------STANDPIPE SAMPLING SLOUGH W:ATER D.O. SPEC.COND. WATER D.O. SPEC.COND. SITE NUMBER DATE BANK pH TEMP(C) (mg/1) (umhos/cm) pH TEMP(C) (mg/1) (umhos/cm) ------------------------------------------------------------------------------------------------------B 06 830429 RIGHT 4.5 9.9 6.2 10.8 Jl 07 830429 RIGHT 4.8 9.8 5.8 10.9 B 08 830429 RIGHT 4.0 9.6 &.0 10.7 Jl 09 830429 RIGHT 4.0 9.6 5.8 1 o. 9 Jl 10 830429 RIGHT 3.5 9.6 5.8 11.0 B 01 830429 LEFT 3.8 9.0 6.0 10.8 B 02 830429 LEFT 4.0 9.0 6.0 11.1 B 03 830429 LEFT 4.5 8.6 6.2 11.1 B 04 830429 LEFT 4.0 8.6 6.0 11.0 B OS 830429 LEFT 4.5 8.1 6.0 11.1 B 06 830429 LEFT 4.0 9.0 6.0 11.1 B 07 830429 LEFT 4.2 8.9 6.2 11.3 B 08 83 0429 LEFT 3.5 9.2 6.2 11.2 B 09 830429 LEFT 3.5 9.0 6.0 10.9 B 10 830429 LEFT 3.8 9.2 6.0 11.3 c 06 830417 RIGHT 6.4 2.5 11.2 6.4 2.0 11.4 c 08 830417 RIGHT 6 .3 2.5 4.8 6 .3 1.8 11.0 c 09 830417 RIGHT 6 .3 2.5 2.3 6 .3 1.8 11.6 c 10 830417 RIGHT 6 .2 2.2 1.3 6 .3 1.8 12.4 c 06 830430 RIGHT 4.0 10.2 206 5.5 lO.S 245 c 08 830430 RIGHT 4.5 3.6 234 5.2 10.7 238 c 09 830430 RIGHT 5.2 2.3 159 5.2 10.6 241 c 10 830430 RIGHT 5.2 1.1 166 5.5 10.5 232 ------------------------------------------------------------------------------------------------------ B-9 Appendix Table B-8. Intragrave 1 and corresponding surface water quality measurements collected in Slough 21 (RN 142 .0. Geographic Code S31N02W02AAA) of the Susitna River during two sampling periods (April 15-18 and April 29-Hay 2) in spring, 1983. ------------------------------------------------------------------------------------------------------INTR.AGRA VEL SURFACE WATER --------------------------------------------------------------STANDPIPE SAMPLING SLOUGH WATER D.O. SPEC.COND. WATER 0.0. SPEC.COND. SITE NUMBER DATE BANK pH TEMP( C) (mg/1) (umhos/cm) pH TEMP(C) (mg/1) (umhos/cm) --------------------------------------------------------------------------------------A 01 830416 LEFT 7 .1 2.8 2.3 7 .2 2.8 6.2 A 02 830416 LEFT 7.0 2.5 6.5 6 .8 2.5 6".5 A 03 830416 LEFT 6.9 3.0 6.8 6.7 4.0 8.8 A 04 830416 LEFT 6.6 3.0 6.9 6 .6 5.0 8.8 A 05 830416 LEFT 6. 7 3.2 6.0 6 • 7 5.0 8.8 A 06 830416 LEFT 6.7 3.2 6.7 6 • 7 4.5 8.6 A 07 830416 LEFT 6. 7 3.0 6.5 6. 7 5.0 8.7 A OS 830416 LEFT 6. 7 3.0 6.6 6 • 7 5.2 9.4 A 09 830416 LEFT 6.8 3.0 6.5 6.8 5.2 9.3 A 10 830416 LEFT 6.7 3.5 6.7 6.7 5.5 9.4 A 01 830416 RIGHT 7 .1 4.0 7.4 7.2 5.2 9.6 A 02 830416 RIGHT 7.1 4.0 7 • 5 7 .1 5.2 9.8 A 03 830416 RIGHT 7 .1 4.0 7. 7 7.1 5.2 10.0 A 04 830416 RIGHT 7 .1 4.5 8.6 7 .1 5.2 9.8 A OS 830416 RIGHT 7.0 4.5 7. 7 7 .1 5.2 9.7 A 06 830416 RIGHT 7.0 4.5 5.0 7.1 5.2 9.5 A 07 830416 RIGHT 7.0 4.5 8.8 7.1 5.2 9.8 A 08 830416 RIGHT 7 .1 4.5 8.4 7 .1 5.2 9.8 A 09 830416 RIGHT 7 .1 4.5 8.2 6.9 5.2 10.0 A 10 830416 RIGHT 6.9 5.0 6.8 6. 7 5.2 9.7 A 01 830501 LEFT 6. 7 2.5 6.7 239 6 .6 2.5 7 .3 245 A 02 830501 LEFT 6.8 2.5 7.1 245 6 .6 2.5 7. 7 248 A 03 830501 LEFT 6.8 2.8 7.4 242 6.6 5.0 9.4 254 A 04 830501 LEFT 6 .6 3.0 7.1 241 6.8 5.2 9.8 252 A 06 830501 LEFT 6. 7 2.5 7.0 239 6.8 4.0 8.7 262 A 07 830501 LEFT 2.5 7 .o 248 4.8 9.8 255 A 08 830501 LEFT 2.8 6.9 246 6.8 9.7 245 A 09 830501 LEFT 3.2 6.9 243 6.0 10.1 251 A 10 830501 LEFT 4.0 6.9 236 6.5 10.2 250 A 01 830501 RIGHT 6.8 4.5 7 .3 216 6.8 7 .5 10.5 240 A 02 830501 RIGHT 6.8 4.0 7.4 212 6.9 7.2 10.5 23 8 A 03 830501 RIGHT 6.8 3.8 7 .5 213 6.8 7.0 10.5 244 A 04 830501 RIGHT 6.8 4.0 7 .6 206 6. 7 7.0 10.5 239 A 05 830501 RIGHT 6.8 4.2 7 .6 210 6. 7 7 .2 10.5 242 A 06 830501 RIGHT 4.5 7. 7 208 7 .0 10.5 244 A 07 830501 RIGHT 4.0 8.3 174 7.0 10.6 244 A 08 830501 RIGHT 3.8 7 .9 175 7.0 10.5 244 A 09 830501 RIGHT 3.8 8.4 185 6.8 10.5 248 A 10 830501 RIGHT 4.0 7 .6 212 6.8 10.3 248 ------------------------------------------------------------------------------------------------------ B-10 APPENDIX C Burbot winter catch data and age. length. and sex data. Appendix Table C-1 Appendix Table C-2 Appendix Table C-3 Appendix Table C-4 LIST OF APPENDIX C TABLES Burbot catch per unit effort (CPUE) at selected fish habitat (SFH) sites in the Susitna River and tributaries between Cook Inlet and Devil Canyon, December, 1982,to March, 1983 ................. C-1 Burbot age-length relationships of the Susitna River between Cook Inlet and Devil Canyon, December, 1982, to March, 1983 .. C-2 Relative spawning maturity of burbot captured in the Susitna River between Cook Inlet and Devil Canyon, December, 1982, to March, 1983 ......•..•................ C-3 Burbot age-length relationships by sex on the Susitna River between Cook Inlet and Devil Canyon, February, 1981, to March, 1983 ....•.•......••.....••...•.•....... C-6 Appendix Table C-1. Burbot catch per unit effort (CPUE) at selected fish habitat (SFH) sites in the Susitna River and tributaries between Cook Inlet and Devil Canyon, December, 1982 to March, 1983. Numbers Date(s) Method of of Fish Location RM/TRM Sampled Capture Captured (CPUE) Deshka River 40.6/0.0 12/2 -12/3 Trotline 22 1.69 Deshka River 40.6/0.0 12/2 -12/3 Burbot Set 1 0.50 Deshka River 40.6/2.0 12/2 -12/3 Trotl ine 13 2.17 Deshka River 40.6/2.0 12/2 -12/3 Burbot Set 1 0.50 Deshka River 40.6/0.0 11/11 -1/12 Trotline 10 1.25 Deshka River 40.6/2.0 1/10 -1/12 Trotl i ne. 8 0.80 Deshka River 40.6/0.0 2/16 -2/17 Trotline 19 2.70 Deshka River 40.6/0.0 2/16 -2/17 Burbot Set 1 1.00 Indian River 138.6/0.0 1/27 -1/29 Trotline 1 0.17 Susitna River 136.7 12/19 -12/24 Trotline 2 0.08 Susitna River 76.1 3/10 -3/11 Trotline 5 1.00 Susitna River 72.0 3/11 -3/12 Trotl·i ne 6 1.50 C-1 n I N Appendix Table C-2 Burbot age-lengtn!1 relationships on the Susitna River between Cook Inlet and Devil Canyon, December 1982 to March 1983. Cook Inlet to Chulitna Confluence Chulitna Confluence to Devil Can~on Cook Inlet to Devil Can~on Total No. Mean Range of Total No, Mean Range of Total No. Mean Age of fish length lengths of fish 1 ength lengths of fish Percent length (Years) Sam[! led ~ ~ Sam[! led ~ ~ Samf!led Freguenc:z:: ~ 0 I II Ill IV 3 417 395-430 3 4.4 417 v 15 472 440-545 15 21.7 472 VI 19 503 430-580 1 470 20 29.0 502 VII 7 525 420-600 "1 585 8 11.6 532 VIII 7 554 490-660 7 1 o. 1 554 IX 6 625 598-710 660 7 1 o. 1 630 X 5 703 604-795 5 7,3 703 XI 2 725 670-780 2 2.9 725 X II 2 730 695-765 2 2,9 730 TOTAL 66 584 395-795 3 572 470-660 69 100.0 585 1/ Total length in millimeters. Range of 1 engths ~ 395-430 440-545 430-580 420-600 490-660 598-710 604-795 670-780 695-765 395-795 J\ppendix Table C-3. Relative spawning maturity of burbot captured ·in the Susitna River between Cook Inlet and Devil Canyon, December, 1982 to March, 1983. Condition of Length 1 Date Area of River/Tributary Gonads Age Captured Capture Mile/River Mile Sex -Male ripe 424 5 12/3 Deshka R. 40.6/0.0 ripe 425 5 12/3 Deshka R. 40.6/0.0 immature 425 4 3/12 Mainstem 72.0 ripe 427 5 1/12 Deshka R. 40.6/0.0 ripe 430 4 12/3 Deshka R. 40.6/0.0 ripe 445 5 1/12 Deshka R. 40.6/0.0 ripe 465 5 12/3 Deshka R. 40.6/0.0 ripe 492 7 12/3 Deshka R. 40.6/0.0 ripe 498 6 1/12 Deshka R. 40.6/0.0 ripe 535 5 1/12 Deshka R. 40.6/0.0 ripe 540 7 1/12 Deshka R. 40.6/0.0 immature 545 5 3/12 Mainstem 72.0 ripe 580 8 12/3 Deshka R. 40.6/0.0 immature 585 7 1/29 Indian R. 138.6/0.0 ripe 725 10 1/11 Deshka R. 40.6/0.0 spent 420 7 2/17 Deshka R. 40.6/0.0 spent 435 5 2/17 Deshka R. 40.6/0.0 spent 440 5 2/17 Deshka R. 40.6/0.0 spent 500 6 2/17 Deshka R. 40.6/0.0 spent 515 6 2/17 Deshka R. 40.6/0.0 spent 630 9 3/11 Mainstem 76.1 spent 660 9 3/11 Mains tern 76.1 spent 780 11 3/11 Mainstem 76.1 Total number males, 23. 1 Total length in millimeters. C-3 Appendix Table C-3 (Continued). Condition of Length 1 Date Area of River/Tributary Gonads Age Captured Capture Mi 1 e/River 111i 1 e Sex -Female immature 395 4 1/11 Deshka R. 40.6/2.0 ripe 430 6 12/3 Deshka R. 40.6/2.0 ripe 440 6 12/3 Deshka R. 40.6/2.0 ripe 440 5 12/3 Deshka R. 40.6/2.0 immature 440 6 12/3 Deshka R. 40.6/2.0 ripe 460 6 12/3 Deshka R. 40.6/2.0 ripe 461 6 1/12 Deshka R. 40.6/0.0 ripe 465 5 12/3 Deshka R. 40.6/0.0 ripe 470 6 12/20 Mainstem ·136. 7 ripe 471 6 12/3 Deshka R. 40.6/0.0 ripe 474 6 12/3 Deshka R. 40.6/2.0 ripe 488 5 12/3 Deshka R. 40.6/2.0 ripe 490 7 12/3 Deshka R. 40.6/2.0 immature 495 5 1/12 Deshka R. 40.6/2.0 ripe 510 5 12/3 Deshka R. 40.6/2.0 immature 525 6 1/12 Deshka R. 40.6/0.0 immature 535 5 3/12 Mainstem 72.0 ripe 543 6 12/3 Deshka R. 40.6/0.0 ripe 550 8 12/3 Deshka R. 40.6/2.0 ripe 550 6 1/12 Deshka R. 40.6/0.0 ripe 550 6 1/12 Oeshka R. 40.6/2.0 ripe 552 7 12/3 Deshka R. 40.6/2.0 ripe 555 8 12/3 Deshka R. 40.6/0.0 ripe 568 6 1/11 Deshka R. 40.6/2.0 ripe 570 6 12/3 Deshka R. 40.6/0.0 ripe 578 7 12/3 Deshka R. 40.6/0.0 ripe 580 6 12/3 Deshka R. 40.6/0.0 ripe 598 9 12/3 Deshka R. 40.6/0.0 1 Total length in millimeters. C-4 Appendix Table C-3 (Continued). Condition of Length 1 Date Area of Ri ver/Tri buta ry Gonads Age Caetured Caeture Mile/River Mile Sex -Female ripe 600 7 1/11 Deshka R. 40.6/2.0 ripe 600 8 1/12 Deshka R. 40.6/0.0 ripe 604 10 12/3 Deshka R. 40.6/0.0 ripe 610 9 12/3 Deshka R. 40.6/0.0 ripe 615 9 12/3 Deshka R. 40.6/2.0 ripe 626 10 12/3 Deshka R. 40.6/0.0 immature 695 12 . 3/12 Mains tern 72.0 . immature 710 9 3/12 Mainstem 72.0 ripe 765 12 12/3 Deshka R. 40.6/2.0 spent 470 6 2/17 Deshka R. 40.6/0.0 spent 490 8 2/17 Deshka R. 40.6/0.0 spent 490 8 2/17 Deshka R. 40.6/0.0 spent 515 6 2/17 Deshka R. 40.6/0.0 spent 590 9 2/17 Deshka R. 40.6/0.0 spent 660 8 3/11 Mains tern 76.1 spent 670 11 2/17 Deshka R. 40.6/0.0 spent 765 10 3/11 Mains tern 76.1 spent 795 10 3/12 Mainstem 72.0 Total number of females, 46 1 Total length in millimeters. C-5 Appendix Table C-4 Burbot age-lengt~/ relationships by sex on the Susitna River between Cook Inlet and Devil Canyon, February 1981 to March 1983, Cook Inlet to Chulitna Chulitna Confluence to Cook Inlet to Devil Canyon Both Sexes: Cook Inlet to Devil Canyon Confluence Devil Canyon Total No. Mean Range of Total No. Mean Range of Total No. Mean Range of Total No, Mean Range of Age of fish 1 ength length of fish length 1 ength of fish length length of fish Precent 1 ength length (Years) Sex Same led ~ ~ Same led ~ ~ Same led ·~ ~ Same led Freguency ~ ~ 0 I 5 99 85-115 2 108 102-114 7 102 85-115 I I 5 189 168-205 1 110 6 175 168-205 II I 1 180 1 180 Ill M 4 355 295-400 3 334 322-353 7 346 295-400 13 5.0 339 238-400 F 2 289 238-340 4 351 330-398 6 331 238-398 IV M 10 404 303-450 1 415 11 405 303-450 30 11.6 418 303-490 F 16 422 355-490 3 441 430-460 19 425 355-490 v M 26 448 370-550 7 457 390-530 33 450 370-550 62 24.0 453 365-550 F 21 466 365-535 8 432 378-482 29 457 365-535 VI M 12 497 430-555 6 490 440-575 18 495 430-575 47 18.2 492 394-580 F 23 496 430-580 6 471 394-525 29 491 394-580 n VII M 6 534 420-614 6 546 468-600 12 540 420-614 28 10.9 523 418-614 I F 12 517 418-600 4 489 469-510 16 510 418-600 0"1 VIII M 9 585 513-672 2 581 515-647 11 585 513-672 33 12.8 568 456-672 F 17 563 456-660 5 546 480-600 22 559 456-660 IX M 4 638 572-680 2 615 570-660 6 631 570-680 17 6.6 615 500-710 F 8 615 556-710 3 585 500-675 11 607 500-710 X M 3 658 600-725 3 658 600-725 11 4.3 662 555-795 F 7 659 555-795 1 690 8 663 555-795 XI M 3 670 609-780 1 780 4 697 609-780 8 3.1 697 609-780 F 2 690 670-710 2 703 665-740 4 696 665-740 XII M 2 697 654-740 2 697 654-740 6 2.3 725 654-790 F 3 721 695-765 790 4 739 695-790 XIII F 1 900 1 900 0.4 900 XIV F 1 815 1 815 0.4 815 XV F 1 804 1 804 0.4 804 TOTAL 204 535 85-900 68 497 102-790 272 537 85-900 258 100.0 616 238-900 I = Immature, sex not identified M = Male F = Female 1/ Total length in millimeters. APPENDIX D Winter radio telemetry data on burbot, rainbow trout, and Arctic grayling. Appendix Table D-1 Appendix Table D-2 Appendix Table D-3 Appendix Table D-4 LIST OF APPENDIX D TABLES List of tributaries, sloughs, and lakes in the Susitna River drainage that were aerial surveyed to track the movements of radio-tagged Arctic grayling, rainbow trout, and burbot ........... D-1 Summary of tagging and tracking data for radio-tagged rainbow trout in the Susitna River between Cook Inlet and Devil Canyon, September, 1982, to April, 1983 ...........•... D-2 Summary of tagging and tracking data for radio-tagged burbot in the Susitna River between Cook Inlet and Devil Canyon, August, 1982, to April, 1983 .................. D-3 Summary of tagging and track·ing data for radio-tagged Arctic grayling in the proposed impoundment area of the Susitna River drainage above Devil Canyon, August, 1982, to April, 1983 ........•. D-5 0 I 1-' Appendix Table D-1 List of tributaries, sloughs and lakes in the Susitna River drainage that were aerial surveyed to track the movements of radio-tagged Arctic grayling, rainbow trout and burbot. Surveys for the tributaries start at their mouths. Trib, slough, lake surveyed (distance surveyed (in miles) Cook Inlet to Devils Canyon Alexander Creek (7.0) Yentna River (10,0) Deshka River (6.0) Kroto Slough (complete) Willow Channel (complete Kashwitna River (5.0) Montana Creek (3,0) Rabideux Creek (2.5) Sunshine Slough (complete) Birch Creek Slough (complete) Talkeetna River (20,0 Larson Lake (complete) Sheep River (5,0) Clear Creek (12.0) Fish Creek (complete) Chulitna River (20.0) Byer Lake (complete) #Surveys/by 2 month intervals ~ Nov Jan Mar Oct Dec 'F"ei) ~ 2 2 2 1 4 2 2 1 2 1 Trib, slough, lake surveyed (distance surveyed (in miles) #Surveys/by 2 month intervals ~ Nov Jan Mar Oct Dec Feb ~ Cook Inlet to Devils Canyon (Cont) Whiskers Creek (4.0) Slough 6a (complete) Cash Creek & Lake (complete) Slough Sa (complete) Slough 9 (complete) Fourth of July Creek (3.0) 3 Unnamed lake, drains into Fourth of July Creek 4 mf upstream from its mouth (complete) Indian River (10.0) 3 Miami Lake (complete) Proposed Impoundment Area: Tsusena Creek (4.0) 5 Deadman Creek (14.0) 5 Deadman Lake (complete) 1 Watana Creek (E.Fork-8,0) 4 Kosina Creek (6.0) 4 Clarence Lake (complete) Oshetna River (4.0) 4 1 1 1 3 3 1 2 1 2 1 2 0 I N Appendix Table D-2 Summary of tagging and tracking data for radio-tagged rainbow trout in the Susitna River between Cook Inlet and Devil Canyon, September 1982 to April 1963. caeture Data 1 1982 Radio Fre-Date River-Date guency Lengt~/ ~ ~ Tagged t!.!..!! Released 600-.5 410 10/13 10/14 601-1 508 9/19 9/20 600-3 443 6 10/9 10/10 620-1 445 6 9/19 9/20 640-1 446 10/9 10/10 660-.5 435 6 9/7 9/8 660-1 423 10/9 10/10 670-3 440 6 9/18 9/19 680-1 445 9/18 9/19 710-1 440 9/16 9/19 E~Fork length in millimeters -Talkeetna River, TRM 1. 5 77.0 10/15 131.0 9/21 136.6 10/11 131.1 9/21 138.6 10/11 125.3 9/9 138.6 10/11 131.1 10/20 131.1 9/20 131,1 9/20 Tracking Data: Date tracked, location and rivermile Se~t OCT 10 14 1 22 25 4 15 ~ B ~ ~ ~ p p 76,5 131.0 130.5 129.5 129.5 138.0 130.4 129.1 128.0 128.0 138.6 125.5 126.1 112,8 113.5 113.5 113.5 111.5 138.6 NS 129.6 128.6 129.0 130.9 131.0 131.0 132,5 130.6 127.7 128,0 126.0 Note-P ~ Tracked by plane or helicopter B = Boat survey S = Snowmobile survey NC = Not checked NS = No signal Nov 30 ...,-s--2 ~ p p 72,0 72.0 72.0 131.0 131.0 131.0 134.8 131.0 63.5 126.4 128.4 128.0 NS 138.2 NS 112.5 112.5 112,5 135.5 118.0 117.8 127.0 127.0 127.0 132.5 132.5 132.5 124.8 123.2 118.5 Dec Feb Mar 14 30 q 4 9 12 ~ ~ ~ p ~ s 72.0 NS 73.5 NS NS NC 131.5 NC 131.1 131.5 131.5 131.5 64,0 62.0 62,0 63.0 63.0 63.0 121.5 111,0 112.0 NS 131.5 NC NS NS 97 .rJ!/ NS NS NC 113.4 113.4 113.4 113.1 113.1 113.1 83.0 63.0 63.0 NS NS NC 126.6 NS NS NS NS NC 129.5 130.0 NS NS NS NC NS 104.0 103.5 NS NS NC w: ~ NC NS NC NS NC 113.1 NC NS NS NS CJ I w Appendix Table D-3 Summary of tagging and tracking data for radio-tagged burbot in the Susitna River between Cook Inlet and Devil Canyon, August 1982 to April 1983. Caeture Data~ 1982 Radio Fre-Date ~ Length~1 Date Tagged 600-2 660 9/14 9/15 610-2 584 8/18 8/19 630-2 865 9/10 9/11 640-2 570 8/19 8/20 660-2 715 9/19 9/20 660-3 607 9/19 9/20 670-1 580 10/13 10/13 670-2 565 10/13 10/13 680-2 535 10/13 10/13 710-3 615 10/13 10/13 740-3 667 9/19 9/20 ~/Total length in millimeters Tracking Data: Date tracked~ location and rivermile AUG River-Date 22 26 28 2 5 Mile Re 1 eased p p B B B 139.5 101.2 103.0 137.3 139.5 135.7 83.7 83.7 83.7 83.7 129.2 9/16 8/20 101.2 101.2 100,0 99.5 98.7 9/13 9/21 137.3 137.3 136.9 136,9 136.9 9/21 9/21 10/15 10/15 10/15 10/15 9/21 Note -P = Tracked by plane or helicopter B = Boat survey S = Snowmobile survey NC = Not checked NS = No signal SEPT 9 15 18 22 p B B B 139.6 139.6 91.0 NC NC NC 103.0 101.0 96.7 136.9 136.9 136.9 NS NC 135.7 128.1 25 p 139.6 NS 92,7 101 .0 139.6 135.7 128.0 Appendix Table D-3 Continued Caeture Data 2 1982 Radio Fre-Date River- guency Length~1 Date Tagged Mile 600-2 660 9/14 9/15 139.5 610-2 584 8/18 8/19 101.2 630-2 865 9/10 9/11 103.0 640-2 570 8/19 8/20 137.3 660-2 715 9/19 9/20 139.5 0 660-3 607 9/19 9/20 135,7 I ..,. 670-1 580 10/13 10/13 83.7 670-2 565 10/13 10/13 83.7 680-2 535 10/13 10/13 83.7 710-3 615 10/13 10/13 83,7 740-3 667 9/19 9/20 129.2 ~/Total length in millimeters Trackin9 Data: Date tracked 2 location and rivermile OCT NOV DEC FEB MAR APR Date 4 15 30 15 2 14 19 30 4 4 12 19 Released p p p p p p s p p p s p 9/16 139.6 139.6 NS 139.6 139.6 139.6 NC NC 139.6 NS NC NS 8/20 5,0 NS NS -Presumed dead, out to Cook Inlet - 9/13 80,0 50.0 NS NS NS 9/21 100.0 100.0 NS 100,0 100.0 9/21 136,0 135.3 NS 26,0 26.0 9/21 135.7 135.3 135.3 135,3 135.3 10/15 83.5 83.6 83.0 83.0 10/15 83.5 NS NS NS 10/15 83.0 77.5 77.5 77.5 10/15 83.2 80.0 80.0 NS 9/21 128,0 NS NS NS NS Note - P ; Tracked by plane or helicopter B = Boat survey S ; Snowmobile survey NC = Not checked NS = No signal NS 100.0 26.0 135.3 82.5 NS 77.0 79.5 NS NS -Presummed dead, out to Cook Inlet - NC 100.0 100.0 NS NS NS NC 26.0 27.0 NS NC NC 135.3 -Dead, located in 2" of water- NC 83.0 83.0 82,5 82.5 NC NS -Presumed tag failure- NC 76.0 75.0 72.0 72.0 NC NC 79.0 76.0 76.1 76.1 NC NS -Presumed tag failure - 0 I U1 Appendix Tab 1 e D-4 Summary of tagging and track t ng data for radi a-tagged Arctic grayling in the proposed impoundment area of the Susi tna River drainage above De vi 1 Canyon, August 1982 -April 1983. All fish were captured by hook and line. Capture Data, 1982 Tracking Data: Date tracked, location and river mile; Susitna River mile/Tributary River mile Radio Fre· guency 600-1 620-.6 630-.5 650-.5 650-.6 660-.6 670-1 11 o-.5 710-1 720-.5 720-.6 720-1 730-.5 740-.5 740-.6 Len~~~ ~- 37!> 375 395 375 360 375 395 375 385 380 390 395 370 390 390 !!1 Fork 1 ength Date Captured 8/16 9/10 8/24 9/30 9/10 9/8 9/7 9/28 6/22 9/15 9/10 8/18 9/15 9/30 9/7 Location (tributary rivermile) Oshetna ( 1. 7) Tsusena(1.5) Watana (East Fork 8,0) Kosina(1.6) Tsusena(1.5) Tsusena(1.5) Oshetna(O. 7) Kosina(1,6) Kosina(4,0) Kosina(1.6) Tsusena(1.5) Oshetna(l. 7) Kosina(1.6) Kosina(1.6) Oshetna ( 0. 7) Date Date Tagged ~ 8/19 9/11 8/25 10/1 9/11 9/9 9/8 9/29 8/23 9/16 9/11 8/19 9/16 10/1 9/8 8/20 9/12 6/26 10/2 9/12 9/10 9/9 9/30 8/24 9/17 9/12 8/20 9/17 10/2 9/9 16 p NC 181.3 /1.5 194,1 /8.0 T/1,5 T/1,5 NC NC T/1.5 NC NC Sept 18 t.. 233.4 /1.2 181,3 -/1.5 194.1 /8,0 T/0.7 T/0. 7 232.5 156.0 206.4 /1.6 172.5 233.4 /1,7 206.4 /1,6 233.4 /1,0 Note -P = Tracked by plane or helicopter C = Ground survey NC = Not checked NS = No si gna1 27 p 0 /1.2 161.3 /1.5 194,1 /8,0 NS T/0. 1 227.5 NC NS 174.0 233,4 /1.7 206,4 /1.4 233.4 /1.0 2 p 233.4 /1,2 177,5 194.1 /8.0 153,0 T/0.0 206,3 206,4 /1.0 153,0 NS NS 220.0 206.4 /1,4 T/1. 6 233.4 /1.0 OCT 15 .t.. NS 154.0 194,1 o.o 206,1 153.0 T/0.0 NS 206.4 /0,8 156.0 NS NS 201.8 202.0 NS 233,4 /0.0 30 p NS 154.5 193,5 205.0 154,0 174.5 NS 206,4 /0.8 156.0 197.0 179.5 205.5 196.5 NS 233.4 15 t.. 233.4 /0.2 154.5 193,5 187.5 153.8 174.5 192.5 206,4 /0.5 156.0 198.0 176.6 206.0 197 .o 206.8 228.0 2 t.. 233.4 /0.2 154.5 193,0 NS 153,8 NS 191.5 206.4 /0.5 NS 198.5 NS 206.0 197.0 NS 226.7 Dec -14 p 233.4 /0.2 NS 192.0 186.7 153,6 NS 191.5 206,4 /0.5 NS 196.5 NS 206.0 197.0 NS 226,7 Feb 4 p NS NS 192.0 166,7 153,1 NS 191.5 206.4 /0,5 NS 198.5 175.0 NS 198.0 NS 226.7 Mar 3·4 c NS NS 191.8 187.0 153.1 NS 190.9 NS NS 198.0 NS NS 197.5 NS NS ~ 19 .t.. NS NS NS 187,0 NS NS NS NS NS 198.0 NS NS 197,5 NS NS