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HomeMy WebLinkAboutAngoon Hatchery Concepts 1980Alaska Power Authority LIBRARY COPY ANGOON HATCHERY - CONCEPTS 740 1ST. ANCHORAGE,ALASKA TRYCK Head Office / 740 | Street Anchorage, Ala: k1 99501 / 907-279-0543 / Cable TNHANCAK/ Telex 090-2332 ENGINEERS / PLANNERS / SURVEYORS a 6354.0 September 19, 1980 Carroll Martell, AIA North 10 Post Street Spokane, WN 99201 4 Dear Mr. Martell: Enclosed you will find a report detailing our work to date including a copy of the application for a preliminary non-profit hatchery permit that we have prepared and Submitted to the State of Alaske on behalf of the Angocn Aquaculture Association. We believe that this fulfiils the requirements of cur contract. : According to our proposed schedule of fees datea 2/29/60, the only remaining item te te completed is a preliminary plan laycut and cross section through site (item #3) which presumably includes some architectural work. Included you will find copies of the conceptual work completed by TNH/Weliis on this subject outlining the engineering neecs for the facility. We hope you find the work we have done adequate to satisfy your needs. We are ready and willing to proceea to the next phase of this work. If there are any questions, please call. Sincerely ,, MAN & HAY, 1 = —) z i “ Degli Mee . Lake Frank E. Nyman, P.E. Projeét Engineer Senior Partner img Enclosure TABLE OF CONTENTS ANGOON HATCHERY CONCEPTS COVER LETTER I. INTRODUCTION II. HYDROLOGIC REPORT A. Report B. Synthetic Hydrograph III. CONCEPTUAL DESIGN A. Building Requirements B. Biological Concepts c. Work Patterns at the Angoon Hatchery IV. ACCESS ROAD AND SERVICE DOCK A. Road Plan and Section B. Explanation of Why Dock was Droppec V. PRELIMINARY NON-PROFIT HATCHERY APPLICATION AS SUBMITTED TO THE STATE OF ALASKA APPENDIX Aerial Photo of Project Site Plan View Showing Installation and Flow Diagram Cross Section Hyoraulic Profiie ra INTRODUCTION This report deals with the development concepts for a private non-profit salmon hatchery located on Favorite Bay Stream, approximately four miles south of the village of Angoon, Alaska. The hatchery is planned as an integral part of a multiple use facility integrating a hydroelectric power project, a salmon hatchery ana a safe public water supply into one project. The project is planned for native owned lands and will provide multiple benefits for the community including jobs, reliable power, fishery enhancement and safe, reliable water. The phase of the work culminating in this report included preparation of a private non-profit hatchery permit application, a copy of which is inciudec in this document. HYDROLOGIC REPORT II HYDROLOGY-FAVORITE BAY The generai climate in the project area is maritime occasionally affected by dry air from Canada. These conditions produce a mild climate with a substantial amount of precipitation. The quantity of precipitation in a specific location varies considerably depending upon orographic effects. The maritime influence tends to moderate temperatures. Summer highs are rarely above 70° and winter lows rarely below 15°F. A climatological summary is included as Figure I-1. Temperature and precipitation cata are summarized for Angoon based upon 26 years of record. Mean annual rainfall in Angoon is 37.9 inches, somewhet lower than average for Southeast Alaska. The drainage basin, however, is at a much higher average elevation (985') than Angoon and has a greater degree of exposure to the southeast. Each of these factors will tena to increase annual precipitation and streamflow. A climatic factor of the basin favorable to both hatchery and hydro development is the relatively small change in mean monthly Tainfall throughout the year. Favorite Bay Stream is ungauged. Therefore, no accurate data on streamflow is available. There is, however, considerable stream flow data available on streams in the same region, i.e. less than 25 miles away and in similar terrain. This data has been utilized to produce a stream flow per square mile of drainage basin figure representative of the region. Since basin average elevation is known to have measurable effect on precipitation, a correction of .003 CFS/square mile per foot of basin elevation was included. The mean annual runoff derived from the analysis of gauged basins was 6.02 CFS/square mile. When corrected for basin elevation, this figure was reduced to 5.45 CFS/square mile. A synthetic hydrograph for Favorite Bay Stream was developed by distributing average annual streamflow over the year. This was done based upon gauged data from Hasselborg Creek, located approximately 16 miles north of the project area, for which there is 26 years of excellent quality streamflow Gata. The results of the distribution are presented in Figuré I-2. As indicated in Figure I-2, low flows occur in late winter and average approximately 52 CFS. This is followed by an increase in flow from melt water in May and June which, in turn, is followed by a drop to approximately $0 CFS in August. Stream flow rises to a peak of about 200 CFS in October. This synthetic data has been supported by stream flow measurement mace by Tryck, Nyman & Hayes. Results of these measurements are presented in Table 1. TABLE 1 MEASURED DATE STREAMFLOW March 20, 1980 50 CFS May 3, 1980 152 CFS *September 4, 1980 28 CFS *This measurement was made during a particularly dry period. August 1980 rainfall was well below the 3.04" mean. vod. pt oe euimavondateat para sun ey ve gs SH ee i wot i i DSPARTMERT OF COMPENCE |. ; i ; ot : : il : : ROWMENTAL RATA SERVICE A we Station: Ongern! latltusa: £7.30! Longhuse: /9Y “3°! Grou ele : an hrpereatune () ‘ ats . _ fens fiuvormos : ! : : % » 1 as ty at : BE be oe ’ $3 ge ua as 55 gh . )ze ae | 3 Ha | aie z ry. t , . g x2 # ee 2Z on zt ee. or | } ° | a. “4 2 6 | , . 2. 1 . @ ; ° af @ 2. os 6] t Cail m : x, i z | i 4 . ‘ "() Period of record, years (through 1967) . : : Saat + Also on earlicr datus, months or yoars : 5 . ! * Leaga than one half (0.5) wc" °° Prost Free Period - 170 days i : side eter 7 e-| AYNSIs 300 250 200 150 100 a ° FLOW (CFS) FAVORITE BAY STREAM SYNTHETIC HYDROGRAPH rt —__+——_—— - ——t + = ade aie mane ah aie hee JJ 2 x b t Q 8 TS § 8 Q xX x +% a SX r& «78 coy rs a { SUT weeqal » ff FL FT. 120 + fO C6 Go 46 Lj 20 LZROSS SECTION AT Fk2oPoseD DAM SITE CONCEPTUAL DESIGN III BUILDING REQUIREMENTS FOR ANGOON HATCHERY A. Space Requirements - Hatchery and Related Activities l. Incubation - Coho salmon will be incubated indoors in Heath incubators. A 16-tray cabinet occupies 4 square feet of floor space; approximately twice as much floor space is needed to work in and around the incubators. Short-term goal is to produce 1 million smolts, for which 1.5 million green eggs will be needed. Each incubator tray should be stocked with approximately 6,000 green eggs, thereby requiring 250 trays or 16 stacks of 16-tray incubator cabinets. Space requirement will be 16 KX 4 sq ft X 3 = 192 sq ft. Each incubator should be provided with 7 GPM or a total of 112 GPM. The space and floor requirement to meet the long-term goal should be doubled. Early Rearing - Troughs should be provided in which to place fry from incubator trays in order to remove dead and de- formed embryos, and it is more convenient to start feeding fry in small indoor troughs than in large outdoor ponds. Fry will be taken from incubators over a period of time, therefore it will not be necessary to have trough space to hold all of the fry at one time. It is projected that 10 troughs will provide ample space. Troughs recommended are approximately 24 inches wide, 12 inches deep and 14 feet long. Approximately an equal amount of space around the trough area is needed for work -R- uo room. Space requirement will be 10 X 28 sq ft X 2 = 560 sq ft. Each trough should be supplied with 20 GPM of water, for a total of 200 GPM. Space and floor requirement to meet the long-term goal should be doubled. Food Preparation Area An area of approximately 144 sq ft is needed for prepara- tion of food for daily feedings. This area should contain a work counter, scale area, utensil storage area, and space for maintaining daily feeding records. It should be located adjacent to the entry to the freezer, near the indoor troughs, and near an outside door leading to the outside ponds. Hatchery Apparatus and Supplies Storage An area, preferably a room, approximately 144 sq ft is needed for storage of the miscellany of hatchery utensils and apparatus. This room should be provided with both closed cabinets and shelving. Food Storage It is anticipated that Oregon starter mash and Oregon pellets will be used for fish feed. This product must be stored frozen until immediately before feeding. It is calculated that approximately 160,000 pounds of feed will be used when the hatchery is operating at capacity to achieve the long-term goal. At present it is not possible to make accurate projections of fish feed utilization by time. However, it is recommended that a storage capacity of 40,000 pounds be provided. e Egg Disinfection Area An area of approximately 64 sq ft should be provided in which to disinfect eggs before they are placed into incu- bators. Ideally, this would be an anteroom located near the incgubators, and in an area where any possible contami- nated organisms and apparatus could be disinfected before entry into the building proper. "Scrub Room" An area of approximately 64 sq ft should be provided where utensils and apparatus can be thoroughly cleaned after use. Such an area would fit well adjacent to the disinfection area. B. Space Requirements - Support Activities 1. Office An office of approximately 192 sq ft should be provided. This will provide space for a desk, file cabinet, typing stand, work table, book shelves and extra chairs. Laboratory A small laboratory of approximately 80 sq ft should be provided. This will provide cabinet and work counter space for the limited chemical and biological laboratory work that must be done. In some places such a laboratory can successfully be combined within the office room provided the extra space is alloted. Crew Room A room or approximately 240 sq ft should be provided as a lunch and coffee room and a clothes locker room. Bunk Rooms Two bunk rooms should be provided to house temporary -8- employees when they must spend extended periods at the hatchery. Each room should be large enough to accommodate 4 bunks; estimate that approximately 144 sq ft would be adequate for each room. Each bunk room should have an adjacent rest room and shower. Mechanical Room Necessary to house all necessary mechanical and electrical systems for the station; e.g. electrical panels, heating system, building ventilation system, domestic water supply. Workshop Space necessary to perform a variety of maintenance and construction projects to keep the station functional. Wood working, metal working, mechanical repair and painting areas are necessary. Garage Space necessary to garage hatchery vehicles and vessels, including a pickup, a flatbed truck, a flat-bottomed work boat and skiff. Housing Three permanent full-time employees should be provided with on-site housing and required to live there. This provides enough people to insure that at least one person and usually © two will be on the grounds to cope with odd-hour emergencies and work schedules and yet provide necessary relief. Three family residences will be required. GOI Ha CMB RS BIOLOGICAL CONCEPTS FOR THE ANGOON HATCHERY A. B. Species to be Enhanced 1. Coho salmon. This is the primary species of this project due to the greater value of the fish, and it is the primary target species in current local fisheries. Pink salmon. This is a secondary species, but due to a shorter life span, they are expected to provide an earlier monetary return. Chum salmon. A more desirable species than pinks due to greater market value, but propagation is more experimental in nature. Project Goals l. 2. Short-term goal (2 life cycles) a. Coho salmon. To produce 1 million smolts with an ex- pected total production of 50,000 adult fish. b. Pink salmon. To produce 6 million fry or fingerlings with an expected total production of 120,000 adult fish. c. Chum salmon. To produce 1 million fingerlings with an expected total production of 20,000 adult fish. Long-term goal (4 life cycles) a. Coho salmon. To produce 2 million smolts with an expect- ed total production of 100,000 adult fish. b. Pink salmon. To produce 6 million fingerlings with an expected production of 120,000 fish. c. Chum salmon. To produce 4 million fingerlings with an expected total production of 80,000 adult fish. -11- C. Planning Assumptions 1. Survival rates a. Green egg to emergent fry - 80% b. Green egg to fingerling - 75% c. Green egg to smolt - 66.7% Fecundities a. Coho - 2800 eggs per female b. Pink - 1700 eggs per female c. Chum - 2200 eggs per female Sex ratios a. Returning adults - Male - 50%; Female - 50% b. Used in spawning operation - Males - 33.3%; Females - 66.7% Catch to eScapement ratio Catch in Common Property fishery 50%; Escapement to Hatchery Harvest area 50%. Holding mortality of adults prior to spawning - 25% D. Incubation Requirements l. Coho salmon. Successfully incubated in vertical tray, flow- through incubators, e.g., Heayh incubators. Pink salmon. Most successful operations have used deep- matrix incubators using gravel or plastic saddle substrate, or shallow-matrix incubators using gravel substrate. Chum salmon. Same techniques as for pink salmon. E. Rearing Requirements 1. Coho salmon. This species rears in freshwater habitat until a minimum critical size is reached, usually near 100 millimeters, then they migrate during the spring migration season. In natural waters in Alaska some fish reach -12- critical migratory size in one year, some in two years and a small portion in three years. Under artificial conditions, it is expected that all fish will reach migratory size in one year of rearing at natural stream temperatures. 2. Pink salmon. This species..migrates to sea almost imm- ediately upon emergence. Some of the successful pink salmon programs in Alaska have been of newly-emerged fry released directly to sea. Some experimental work has shown that rearing in salt-water for a short period has increased survival. 3. Chum salmon. Chum fry migrate to sea soon after emergence, but .the most successful chum salmon propagation programs, notably those in Japan and in Washington, have been of fish reared for varying periods in fresh water ponds. F. Space and Flow Requirements 1. Eggs and fry during incubation a. Coho salmon. 6,000 eggs per tray X 16-tray stack X 16 stacks = 1,536,000 eggs initial capacity. Each stack should be provided with 7 GPM flow for a total of 112 GPM. b. Pink salmon. Use a pond tray - shallow matrix incuba- tion pond system. Each pond is 10 feet wide, 100 feet long and operates at a G-inch water depth; capacity is 2,500,000 eggs per pond and three ponds will provide the 7,500,000 green egg capacity required. Each pond should be provided with a water flow of 600 GPM for a total supply of 1,800 GPM. (Flow requirement during incubation only is less than that provided, but the total quantity will be needed when the ponds are used for rearing). Chum salmon. Use comparable pond system for chums. Three ponds, each stocked with 1,667,000 green eggs will provide the required capacity of 5,000,000 eggs. Water provided the ponds will be 600 GPM each for a total of 1,800 GPM. 2. Fingerlings and smolts a. Coho salmon. Fry will be placed in troughs for "clean- up" and started to feeding. They will then be trans- ferred to raceways and reared until the end of October. Then they will be transferred into a large "release" pond where they will be fed until spring, then released to sea in May or June. ‘1) Troughs - 10 each, 24 inches wide, 14 feet long with a 12-inch water depth. Each will be supplied with 20 GPM for a total flow of 200 GPM. 2) Raceways - 10 each, 10 feet wide, 100 feet long with an average operating water depth of 2.5 feet. Each pond will be provided with a maximum of 600 GPM which will provide two theoretical water exchanges per hour; a total flow of 6,000 GPM is required. 3) Release pond - one pond of 50,000 cubic feet capacity to be provided with a flow of 6,000 GPM which other- wise would be used in the raceways. Pink salmon. As soon as fry emerge from the substrate, water level in the incubation ponds will be increased to a depth of 2.5 feet. As the fish grow, some will be moved into one adult holding pond to limit overcrowding. Water from the three incubation ponds will flow through the adult holding pond, therefore, no added flow will be necessary during the rearing period. c. Chum salmon. Fry and fiaperi sae. will be handled the same as pinks. To limit overcrowding fish will be moved into the second adult holding pond. 3. Adult Holding - There will be an overlap in time of return and holding periods for the three species of salmon. It is estimated that the maximum weight of fish to be held at a given time will be approximately 45,000 pounds. Maximum density for holding adult fish is 4 pounds per cubic foot, therefore 11,250 cubic feet of holding pond is required. To facilitate handling and sorting two ponds should be provided. Two ponds 20 feet wide, 100 feet long and with a 3-foot water depth will provide 12,000 cubic feet of space. Water must be provided at a rate of 1 GPM per 10 pounds of fish, for a total flow of 4,500 GPM. Projected Production and Contribution Data A schedule of the donor stocks required during the first rear- ing cycle, the projected production schedule during the first 12 years of operation and the calculated contribution each year until the maximum production level is reached are presented in Tables 1, 2 and 3 respectively. 1. Donor stocks. a. Coho salmon. It is proposed to obtain coho donor stock from either Bearskin Cove or Salt Lake, dependent upon approval of management personnel of Alaska Department of Fish and Game. It is proposed that adult fish be captured by seining and transported to temporary hold- ing facilities to be constructed at the hatchery site. b. Pink salmon. It is proposed to obtain pink salmon from Thayer Creek, approximately 7 miles north of Angoon. Adult fish would be captured by seining and transported to the hatchery site for holding until mature. -18. c. Chum salmon. It is proposed to obtain chum salmon donor stock from Chaik Creek, approximately 10 miles south of Angoon. Adult fish would be seined and transported to the hatchery site for holding. Hatchery production The production level in the first operational year is pro- jected to be considerably below capacity. Such an approach is based on the premise that many unanticipated problems will occur; e.g., delays will be encountered in construction and some portions of the facility will not be completed on schedule, difficulties will be encountered in capturing adequate number of donor fish, hatchery personnel require- ments will not be met, etc. Essentially, the first year of operation should be considered a "shakedown" period. Projected production of chum salmon is less than capacity due to some uncertainty on the success to be expected from the propagation program. A long-term goal of double the initial capacity for coho salmon is shown. The advisability of meeting this long- term capacity will depend upon success of the, initial operation, as well as economic considerations when the decision must be made, approximately in operational year 6 or 7. Hatchery contribution Fish produced by the hatchery will, in the course of their normal migrations, contribute to existing or Common Property fisheries. Upon their return to the hatchery area they should become well separted from other stocks of fish and permit a clearly defined Hatchery Harvest Area. Once this aA area is defined by regulation by the Alaska Board of Fisheries, special methods of harvesting may be imple- mented. The fish captured within the Hatchery Harvest Area will provide necessary broodstock for the propaga- tion program as well ul the salable surplus to pay facility operating expenses. -17- Table 2. Projected Production Schedule for Angoon Hatchery Operational No. Fry-Fingerlings Surv. Projected Adult Production Year Species No. Eggs Smolts Released Rate Number Year Z Coho 150,000 (bp) 1/ 100,000 5% 5,000 4 Pink 500,000 (D) . 400,000 2% 8,000 3 Chum 500,000 (D) 400,000 2% 8,000 5 2 Coho 500,000 (D) 333,000 5% 16,650 5 Pink 2,000,000 (D) 1,600,000 2% 32,000 4 Chum 1,500,000 (D) 400,000 2% 8,000 6 3 Coho 500,000 (D) 333,000 ” 5% 16,650 6 Pink 2,550,000 2,040,000 2% 40,300 5 Chum 500,000 (D) 400,000 2% 6,000 7 4 Coho 1,500,000 1,000,000 5% . 50,000 7 Pink 7,500,000 6,000,000 2% 120,000 6 Chum 500,000 (D) 400,000 2% 8,000 8 5 Coho 1,500,000 1,000,000 5% 50,000 8 Pink 7,500,000 6,000,000 2% 120,000 7 Chum — 1,500,000 1,000,000 2% 20,000 9. 6 Coho 1,500,000 1,000,000 5% 50,000 9 Pink 7,500,000 6,000,000 2% 120,000 8 Chum 1,500,000 1,000,000 2% 20,000 10 7 Coho 1,500,000 1,000,000 5% 50,000 10 Pink 7,500,000 6,000,000 2% 120,000 9 Chum 1,500,000 1,000,000 _ 2% 20,000 ll 8 Coho 2,250,000 1,500,000 5% 75,000 11 Pink 7,500,000 6,000,000 2% , 120,000 10 Chum 1,500,000 1,000,000 2% 20,000 12 9 Coho 3,000,000 2,000,000 5% 100,000 12 Pink 7,500,000 6,000,000 2% 120,000 il Chum 5,000,000 4,000,000 2% 80,000 13 10 Coho 3,000,000 2,000,000 5% 100,000 13 Pink 7,500,000 6,000,000 2% 120,000 12 Chum 5,000,000 4,000,000 2% 80,000 14 ll Coho 3,000,000 2,000,000 5% 100,000 14 Pink 7,500,000 6,000,000 2% 120,000 13 Chum 5,000,000 4,000,000 2% 80,000 15 12 Coho 3,000,000 2,000,000 5% 100,000 is Pink 7,500,000 6,000,000 2% 120,000 14 Chum 5,000,000 4,000,000 2% 80,000 16 1/ (D) denotes donor stock required during the first rearing cycle. -18- Table 3. Projected Contribution Schedule for Angoon Hatchery Operational Projected Catch in Escapement Need for 1/ Surplus for Year Species Adult Prod. Fishery (50%) 50% Broodstock Hatchery Harves 3 Pink 8,000 4,000 4,000 all 0 4 Coho 5,000 2,500 2,500 1,500 1,000 Pink 32,000 16,000 16,000 12,000 4,000 5 Coho 16,650 8,325 8,325 1,500 6,825 Pink 40,800 20,400 20,400 12,000 8,400 Chum 8,000 4,000 4,000 1,800 2,200 6 Coho 16,650 8,325 8,325 * 1,500 6,825 Pink 120,000 60,000 60,000 12,000 48,000 Chum 8,000 4,000 4,000 1,800 2,200 7 Coho 50,000 25,000 25,000 1,500 23,500 Pink 120,000 60,000 60,000 12,000 48,000 Chum 8,000 4,000 4,000 1,800 2,200 8 Coho 50,000 25,000 25,000 2,100 22,900 Pink 120,000 60,000 60,000 12,000 48,000 Chum 8,000 4,000 4,000 1,800 2,200 9 Coho 50,000 25,000 25,000 3,000 22,000 Pink 120,000 60,000 60,000 12,000 48,000 Chum 20,000 10,000 10,000 6,100 3,900 10 Coho 50,000 25,000 25,000 3,000 22,000 Pink 120,000 60,000 60,000 12,000 48,000 Chum 20,000 10,000 10,000 6,100 3,900 il Coho 75,000 37,500 37,500 3,000 34,500 Pink 120,000 60,000 60,000 12,000 48,000 Chum 20,000 10,000 10,000 6,100 3,900 12 Coho 100,000 50,000 50,000 3,000 47,000 Pink 120,000 60,000 60,000 12,000 48,000 Chum 20,000 10,000 10,000 6,100 3,900 13 Coho 100,000 50,000 50,000 3,000 47,000 Pink 120,000 60,000 60,000 12,000 48,000 Chum 80,000 40,000 40,000 6,100 33,900 Maximum contribution level so long as operational level remains the same. 1/ Number of adults needed for broodstock = Green egy requirement » 7 1/3 compensate ~ No. eggs/female for estimated pre-spawning mortality xX 2 to provide an equal number of males -19- WORK PATTERNS AT ANGOON HATCHERY A. Adult Capture and Handling 1. 2. Adult fish enter trapping and sorting area. Personnel crowd fish into small areas with movable panels Fish desired for brood stock are placed into one of two adult holding ponds. Fish in excess of brood stock needs are killed and utilized in same manner as fish captured in Hatchery Harvest area; generally they would be sold or processed. B. Adult Sorting and Spawntaking 1. 2. Personnel crowd fish into small area with moveable panels. Fish are checked and sorted into separate partitioned sections of pond by degree of "ripeness" and by sex. "Ripe' females are killed and placed on spawning platform. if ripe males are plentiful, they too are killed and placed on the platform, but only as they are needed. Females are slit open to remove eggs and milt is added. a. Eggs from pinks and chums are placed directly onto prepared trays in incubation ponds. b. Eggs from coho are hauled to hatchery and placed into troughs to "water-harden', then are measured into incubator trays. If necessary to disinfect eggs, they are 'water-hardened" before being taken into the hatchery, then are disinfected, then placed into in- cubator trays. C. Operations During Incubation l. Embryos are not handled from time they are placed into incubation units until they are "eyed". During this period treatments to control fungal growth comprises -20- bo the only activity with them. After "eyeing", embryos in incubator trays are "shocked" and trays placed in adjoining troughs to remove dead and infertile eggs, then the live embryos are replaced into incubator cabinet. Unless egg loss is severe in incubation ponds, eggs are not shocked and picked. In the incubation ponds, when embryos hatch, they drop through the mesh on the trays onto the substrate on the pond bottom. When this occurs, the trays containing dead and infertile eggs can be re- moved and cleaned up. D. Operations at "Swim-up" or Start of Feeding 1. At appropriate time coho fry are removed from incubator trays and placed into indoor troughs. All dead and deformed fry are removed manually and first feeding takes place. Coho fry are left in the troughs until they are feeding actively or until the troughs are needed for the next lot of fry. Then they will be moved to outside ponds via pipes. When the fry in the incubation ponds swim-up out of the substrate, the water level is increased, the substrate is removed and feeding of the fry commences. E. Feeding and Rearing Operations l. Feed is removed from the freezer each morning and is weighed into separate containers for the various lots of fish. Fish are fed several times each day when they are first feeding, and as they grow, the frequency may be reduced. Trough and pond screens must be cleaned each morning and BO) = evening. Dead fish are also to be removed daily. This is best accomplished before fish are fed the first time. Ponds and troughs must be cleaned and algae, excess food excrement removed frequently. The frequency with which this must be done varies and must be determined at the time. In order to meet certain EPA water pollution criteria, the simplest method is to pump the settleable solids into a settling basin. F. Fish Transfers and Releases ds Periodically it is necessary to move fish from one pond to another. Each time this is done, average weight samples will be taken and the entire lot which is moved will be weighed to estimate total numbers. Fish will be moved via pipes with flowing water, or if possible through existing drain lines. When fish are to be released to go to sea similar proce- dures will be used. -22- ACCESS ROAD AND SERVICE DOCK IV An access road for the hatchery site is planned as shown in Figure IV-1 and IV-2. The road is planned to begin at the intersection with the existing Killsnoo to Angoon Road just north of Killsnoo and proceed south to the southern end of Favorite Bay, terminating at the hatchery site. The terrain along the right of way includes sections of high organic, high moisture content "muskeg" soils interspersed with shallow bedrock. The section shown in Figure IV-2 is intended for use in the muskeg areas. In areas where shallow bedrock is encountered six inches of crushed aggregate base will be sufficient to provide a driving surface. The total project length is approximately 3.6 miles. The concept of the service dock was dropped from consiceration since the roadway provides easy access to existing harbor facilities which are more than acgequate. -23- fo. ‘ ‘ f a . at : ° we Hem bfilint Oeeeption |” _ s \ Danger Pt Reel unt PLIGHTHOUSE . u + RESERVE IMILE EXISTING GROUND | (PEAT) | OVERLAY CONSTRUCTION ON PEAT AND OTHER HIGHLY ORGANIC SOILS. FIGURE IV-2 ANGOON HATCHERY ROAD TYPICAL SECTION -25- PRELIMINARY PRIVATE NON-PROFIT SALMON HATCHERY APPLICATION SSSSSSSSSSSSeSSeSeseSe TRYCK Head Office /740 | Street Anchorage, Alaska 99501 / 907-279-0543 / Cable TNHANCAK / Telex 090-25332 ENGINEERS / PLANNERS / SURVEYORS 0010.0 September 15, 1980 State of Alaska Department of Fish & Game Office of the Commissioner Subpert Builcing Juneau, AK 99801 Attn: Salmon Enhancement and Rehabilitation Coordinator Dear Sir: Enclosed you will find our preliminary application for a private non-profit hatchery permit. We have inclucec ali the information requested in the permit application form and additional information where necessary. We believe that this site will prove to be e viable and worthwhile contribution to the fishery in Southeast Alaska. The economics of the project are enhanced considerably due to the multiple use concept we have utilized in planning a reservoir for hatchery water supply, a hydropower reservoir and a public water supply. Each portion of the project increases the economic viability of the project as a whole. Your approval of this preliminary application will allow us to forge ahead with the planning of a facility that will provice jobs, reliable power and safe water to Angoon. In addition, we will be engaging in a project that will provide service without fossil fuel. If any further information is required, please co not hesitate to contact us. Sincerely, tule. Plomn— Peter H. Nease Frank E. Nyman, P.E. Angoon Aquaculture Association Senior Partner Tryck, Nyman & Hayes img Enclosure -26- Il. Ill. IV. PRELIMINARY APPLICATION PRIVATE NONPROFIT HATCHERY PERMIT STATE OF ALASKA DEPARTMENT OF FISH & GAME Date: Sept. 1980 APPLICANT Name: Angoon Aquaculture Association, Inc. Adcress: Box 138 - Angoon, Alaska 99820 APPLICANT'S AGENT Tryck Nyman and Hayes 740 I St. Anchorage, Alaska 99501 CONTACT INDIVIDUAL Name : Mr. Peter H. Nease Address: Angoon Aquaculture Association, Inc. Box 138, Angoon, Alaska 99820 Phone: (907) 788-34i1 LOCATION/DESCRIPTION: A. Site (stream name ana exact geographic coordinates): Favorite Bay Stream 57° 27'N, 154° 34'W, located at the south end of Favorite Bay near Angoon, Alaska. B. Site Physical Description (see Figure #1): The proposed hatchery site is a level open area on the west side of Favorite Bay stream approximately 1000 feet upstream from where the stream enters the tidal flat (see Figure #1). The stream channel is approximately 100 feet wide at this point. The site is surrounded by sloping forested terrain with shallow bedrock. FACILITY SITING ANALYSIS: A. Land Status 1. From whom will the land or usage rights be acquired and what will be the legal form of such rights? The Angoon Native Village Corporation, Kootznoowoo, Inc., has selected the iands invclved in this project uncer the terms of the Alaska Native Claims Settlement Act. To date no conveyance of lanus has been mace. Ultimate cunveyance is anticipated. -27- B. Water Supply l. What is the water source (lake, stream, etc.)? The water supply for the hatchery will be provicec by a reservoir created from the construction of a companion project on Favorite bay streem. The companion pioject involves a 100 foot earthfill dam approximately 1200 feet upstream from the hatchery s te. The cam wiil be usec tor hydroelectric power generation and public water supply for the village of Angcon and for operation of the hatchery (see Figure #2). The reservoir covers approximately 400 acres and will contain approximately 20,000 acre feet of water, approximately 6,000 ac.-ft. of which will be managed for optimization of hydroelectric generation potential. Water for the hatchery will be taken either from the hydraulic turbine tailrace or from a separate reservoir intake structure, depending upon the. result of thermal studies of the reservoir and the stream. Describe the characteristics of the water source. Water inflow to the reservoir will come from Favorite Bay stream and its associated tributaries. Flow in these streams is run off from snowmelt and rainfail from a 20 square mile drainage basin. The basin varies in elevation from 30 feet to 3000 feet. Basin average elevation is 985. Hydrologic computations indicate that minimum flows in the stream are approximately 30 cfs ana occur in January and February. Normal maximum flows are approximately 200 cfs and the average annual flow approximateiy 110 cfs. Indications are that record floods may be as much as 5000 cfs. Current reservoir planning calls for a steady consumption of 100 cfs for hydropower purposes. At this consumption rate, minimum reservoir levels would occur in early April at which time the reservoir woulG be drawn down approximately 20 feet. Spring runoff should fill the reservoir again by midsummer. Water quality characteristics. (In every case, cite the qualifications of the individual making the assessment and the methods used. ) a. Describe the silt load (include consideration of possible seasonal high water). -28- Observations of the stream bed and flood channels indicate that there is very little, if any, silt in the stream. This includes the high water periods. This conclusion seems reasonable since there is no glacial activity in the drainage basin or in the surrounding area to contribute silt to the stream. The reservoir will act as a sediment trap. Any silt that may be carried in the stream flow will fall out in the reservoir. Silt, therefore, is not expected to be a problem. A water quality analysis is attached as Figure 2. The analysis inaicates that there are no significant quantities of any detrimental materials in the water. The samples for the analysis were taken at the site of the proposed hatchery in May 1980 and July 1980. The indivicual making the initial water quality assessment, Frank E. Nyman, is a registered professional engineer with over 25 years experience in the water supply engineering fiela. Describe the temperature regime (include the daily temperature range and the seasonal highs and lows). Currently, stream temperatures range from wintertime lows of 32 degrees F. to summer highs of 53 degrees F during July. USGS water quality records from streams in the Angoon area indicate that temperatures may go as high as 70 degrees F, although this has not been observed in Favorite Bay Stream. The reservoir will have a substantial effect on water temperature. The summer reservoir temperatures are expected to range from 39 degrees F at the bottom to over 75 cegrees F at the surface. The warm surface layer in this case will be quite thin. Winter temperatures will range from freezing at the surface to 39 degrees F at the bottom. It is anticipated that the hatchery intake structure will be constructed such that water can be selected from different lake levels in orcer to maximize the temperature of the influent when desirable. Indicate possible seasonal low levels of oxygen. (If problems are indicated, a limited permit may be required until the facility proves up. See also low flow considerations, item 4 below). Since all water used in the hatchery will come from the reservoir, there is a possibility that low cissolved oxygen levels may be encountered. To insure that this does not become a problem, aeration equipment is planned for the hatchery influent. All hatchery influent regardless of initial D.O. will be aerated. -29- 4. Local Water Flow a. Attach a seasonal water flow profile and indicate how the data was gathered. A synthetic hydrograph is attached as Figure 3. Since there are no historical stream flow records upon which to base a statistical analysis of streamflow, it was necessary to generate a synthetic hycrograph. The hydrograph was generated by computing mean annual runoff basea upon a study of other gauged basins in the area and correcting this figure for orographic effects. Mean annual runoff was then distributed monthly based upon the runoff distribution observed in Hasselborg Creek, for which there are 15 years of excellent quality data. Hasselborg Creek is on Admiralty Island approximately 16 miles north of Angoon. Climatically and topographically it is very similar to Favorite Bay Stream. / Additionally, stream gauging was performed in the stream in March, May and July of 1979. The flows recorded from these measurements correlated well with the synthetic stream flows. Additional stream gagings are currently being performed in an effort to improve predictions. b. Indicate the profile's relation to your expected needs at maximum operation and at minimum acceptable flow. The preliminary hatchery design calls for a maximum sustained water demand of 13.9 cfs. Since hatchery water will be obtained from the reservoir, reservoir management techniques used for optimizing hydroelectric generation potential will insure an adequate hatchery supply regardless of the stream flow at the time. Preliminary reservoir planning indicates that the reservoir will be drawn down approximately 20 feet in March of an average water year. The reservoir should be full again by October. This scheme is based upon utilizing approximately 100 cfs for power generation, 15 cfs for hatchery operation and 2 cfs for public water supply. V. DONER STOCK, ADULT CAPTURE, AND EGG TAKE A. Coho Salmon - The Salt Lake - Bearskin Cove, 9 miles east of Angoon, is proposed as the site for doner stock. During the first operational year, 71 females will be required, and during each the second and third years 238 females will be needed. In each year, one male will be needed for each two females. It is proposed that adults be captured in the donor stream by seining. Ouring the first operational year, temporary holding ponds will be constructed at the hatchery site and adult coho -30- B. om Operational Year 1 2 3 4 will be transported to them to hola for spawn-taking. Following the first year, it is anticipated that permanent adult holding facilities will be ready for use. Pink Salmon - Pink salmon are naturally present in the hatchery stream, but in relatively small numbers in must years. If enough fish are present in the hatchery stream to provide eggs for the hatchery, this will be the first preference for doner stock; in that event, fish will be captured by seining and held in holaing ponos at the hatchery. Second choice for pink salmon doner stock is Chaik Bay, 12 miles south of Angoon, if it is also approved as a doner site for chums. Third choice for doners is Thayer Creek. During the first operational year, it is projected that the hatchery will operate below capacity, and that 392 females will be required to provide eggs. During the second year of operation, it is projected that the operational level of the hatchery will be increased, and that 1,569 females will be needed. In each case one-half as many males as females will be needed. Chum Salmon - Chaik Bay is proposed as the site of donor stock for chum salmon. It is projected that the hatchery will proauce chums at less than maximum capacity during the first few years, and that 303 females and 152 males will be needed during the first four years. Fish will be seined at the doner site and transported to the hatchery for holding for spawn-taking. TABLE 1 SCHEDULE OF DONER STOCK REQUIREMENTS FOR ANGOON HATCHERY No. Green Number 1/ Number Species Eggs Females Males (1/z) Total Coho : 150,000 71 36 107 Pink 500 , 000 392 196 588 Chum 500 , G00 303 152 455 Coho 500 , 000 238 119 357 Pink 2,000 ,000 1,569 785 2,354 Chum 500 , 000 303 152 455 Coho 500 , 000 238 119 357 Pink -0- -0- -0- -0- Chum 500 , 000 303 152 455 Coho -0- . -0- -0- -0- Pink -0- -0- -0- -0- Chum 500 , 000 303 152 455 1/. Increased by 1/3 to compensate for estimated pre-spawning mortality. -31- VII. VIII. Ix. INCUBATION PROVISIGNS Describe the proposed method and equipment to be used for incubation. See the attached statement on Biological Concepts for the Angoon Hatchery. REARING PROVISIONS If rearing is involved in the proposed program, discuss the provisions that will be made for such rearing. See the attached statement on Biological Concepts for the Angoon Hatchery. HARVEST MANAGEMENT A. 1. Coho Salmon - Adult coho salmon produced by the hatchery will be taken primarily in the Southeastern Alaska troll fishery. It is expected that these will contribute to the Common Property Fishery throughout Southeastern Alaska. 2. Pink and Chum Salmon - Adult pink and chum salmon produced by the hatchery will be taken in the Common Property Fishery primarily in Chatham Strait. The extent to which they will contribute to Common Property Fishery in other areas is unknown. There are minor numbers of coho salmon which return to Favorite Bay and it is expected they will be mixed with adults returning to the hatchery. No chum salmon are present in Favorite Bay and once chums enter the Bay they should be identifiable as hatchery fish. It is expected that the hatchery-produced pink salmon will be completely mixed with naturally-procuced pinks in Favorite Bay. It is anticipated that the terminal hatchery harvest area will be in Favorite Bay. Pinks and chums will be harvested by seine within the bay to harvest fish at their best quality. Coho will be harvested by seine and gill net; it is anticipated that coho entering the adult trapping facilities will also be of adequate quality to be harvestec. -32- ae entree to A. B. Cc. ATTACHMENT #1 BIOLOGICAL CONCEPTS FOR THE ANGOON HATCHERY [EMM ATCHERY Species to be Enhanced 1. Coho salmon. This is the primary species of this project due to the greater value of the fish, and it is the primary target species in current local fisheries. Pink salmon. This is a secondary species, but due to a shorter life span, they are expected to provide an earlier monetary return. Chum salmon. A more desirable species than pinks due to greater market value, but propogation is more experimental in nature. Project Goals l. Short-term goal (2 life cycles) a. Coho salmon. To produce 1 million smolts with an expected total production of 50,000 adult fish. 6. Pink salmon. To produce 6 million fry or fingerlings with an expected total prouuction of 120,000 acult fish. c. Chum salmon. To produce 1 million fingerlings with an expected total production of 20,000 adult fish. Long-term goal (4 life cycles) a. Coho salmon. To produce 2 million smolts with an expected total production of 100,000 agult fish. b. Pink salmon. To produce 6 million fingerlings with an expected production of 120,000 fish. c. Chum salmon. To produce 4 million fingerlings with an expected total production of 80,000 adult fish. Planning Assumptions 1. Survival rates a. Green egg to emergent fry - 80%. b. Green egg to fingerline - 75% c. Green egg to smolt _ 7 66.7% -33- 5. Fecundities a. Coho - 2800 eggs per female b. Pink - 1700 eggs per female c. Chum - 2200 eggs per female Sex ratios a. Returning acults - Male: 50%; Female: 50%. b. Used in spawning operation - Males: 33.3%; Females - 66.7% Catch to escapement ratio Catch in Common Property fishery 50%; Escapement to Hatchery Harvest area 50%. Holding mortality of adults prior to spawning - 25%. oO. Incubation Requirements l. 3. Coho salmon. Successfully incubated in vertical tray, flowthrough incubators, e.g., health incubators. Pink salmon. Most successful operations have used deep-matrix incubators using gravel or plastic sadcle substrate, or shallow-matrix incubators using gravel substrate. Chum salmon. Same techniques as for pink salmon. —. Rearing Requirements l. Coho salmon. This species rears in freshwater habitat until a minimum critical size is reached, usually near 100 millimeters, then they migrate during the spring migration season. In natural waters in Alaska some fish reach critical migratory size in one year, some in two years and a small portion in three years. Under artificial conditions, it is expectec that all fish will reach migratory size in one year of rearing at natural stream temperatures. Pink salmon. This species migrates to sea almost immediately upon emergence. Some of the successful pink salmon programs in Alaska have been of.newly-emerged fry released directly to sea. Some experimental work has shown that rearing in salt-water for a short period has increased survival. Chum salmon. Chum fry migrate to sea soon after emergence, but the most successful chum salmon propagation programs, notably those in Japan and in Washington, have been of fish reared for varying periods in fresh water ponds. -34- F. Space and Flow Requirements 1. Eggs and fry during incubation a. Coho salmon. 6,000 eggs per tray x l6-‘ray stack x 16 stacks = 1,536,000 eggs initial capacity. Each stack will be provided with 7 GPM flow for a total of 112 GPM. Pink salmon. A pond tray, shallow matrix incubation pond system, will be usec. Each pona will be 10 feet vide, 100 feet long and operates at a 6-inch water depth; capacity is 2,500,000 eggs per pond and three ponds will provide the 7,500,000 green egg capacity required. Each pond will be proviced with a water flow of 600 GPM for a total supply of 1,800 GPM. (Flow requirement curing incubation only is less than that provided, but the total quantity will be needed when the ponds are used for rearing). Chum salmon. A comparable pona system for chums will be used. Three ponds, each stocked with 1,667,000 green eggs will provice the required capacity of 5,000,000 eggs. Water provided the ponds will be 600 GPM each for a total of 1,800 GPM. 2. Fingerlings and smolts a. Coho salmon. Fry will be placed in troughs for "clean-up" and started to feeding. They will then be transferred to Taceways and reared until the end of October. Then they will be transferred into a large "release" pond where they will be fec until spring, then released to sea in May or June. 1) Troughs - 10 each, 24 inches wide, 14 feet long with a 12-inch water depth. Each will be supplied with 20 GPM for a total flow of 200 GPM. 2) Raceways - 10 each, 10 feet wide, 100 feet long with an average operating water depth of 2.5 feet. Each pond will be provided with a maximum of 600 GPM which will provide two theoretical water exchanges per hour; a total flow of 6,000 GPM is required. 3) Release pond - one pond of 50,000 cubic feet capacity to be provided with a flow of 6,000 GPM which otherwise would be usec in the raceways. Pink Salmon. As soon as fry emerge from the substrate, water level in the incubation ponds will be increased to a depth of 2.5 feet. As the fish grow, some will be mcvea into one adult holding pond to limit overcrowding. Water from the three incubation ponds will flow through the acult holding pond, therefore, no added flow will be necessary during the rearing period. -35- c. Chum salmon. Fry and fingerlings will be handled the same as pinks. To limit overcrowding fish will be movea into the second adult holding pond. Adult Holding - There will be an overlap in time of return and holding periods for the three species of salmon. It is estimated that the maximum weight of fish to be held at a given time will be approximately 45,000 pounds. Maximum density for holding adult fish is 4 pounds per cubic foot, therefore 11,250 cubic feet of holding pond is required. To facilitate handling and sorting two ponds should be proviced. Two ponds 20 feet wide, 100 feet long and with a 3-foot water depth will provide 12,000 cubic feet of space. Water must be provided at a rate of 1 GPM per 10 pounds of fish, for a total flow of 4,500 GPM. -36- AP PeoKMATe Reizevaue Pound2, J -——-— Feo pose dD PAM Site PeoposeD HATCHERY oo SE FAvORTE Bay StReAm / | N APPROXIMATE SCALE CHEMICAL & GEOLOGICAL LABORATORIES OF ALASKA, INC. P.O. BOX 4-1276 TELEPHONE (907)-279-4014 ANCHORAGE INDUSTRIAL CENTER Anchorage, Alaska 99509 274-3364 5633 B Street ANALYTICAL REPORT “STOMER__Tryck Nyman & Hayes SAMPLE LOCATION: Angoon, Alaska FOR LAB USE ONLY ‘ATE COLLECTED___7>24-80 TIME COLLECTED: ___--= -__ |RECVD .BY__SE LAB #4525 IPLED BY____ Peter Nease SOURCE = (DATE: RECEIVED____8=1=80 | EMARKS DATE COMPLETED-___§-7-80 DATE REPORTED___8-7-80 | reveo ez C Gla SIGNED? mg/1 = MG/L 7 mg/l []P ,Phosphorous—____ []cyanide “Ag,Silver___ (]Sulfate__ ' JA1,Aluminum_____<0.91 __ [ ]Pb, Lead As Arsenic_____—ds[] Pt, Platinum []Phenol []Sb,Antimeny []Total Dissolved ___ i lAu,Gold___— ; : Solids ,B,Boron____—— sé] Se, Se enum —______——. []Total Volatile ——________— oO Solids Ba, Barium___—s [SS icon —_____—. []Suspended____ : , Solids . 1Bi,Bismuth____-——————«[]Sn, Tin _____ [Volatile Sus-______—_§— . . ee pended Solids. . Ca,Calcium________-« [J Sr, Strontium ——___________ [JHardness as___ : : : Caco : Cd,Cadmium___SSSSSSSSs£FT 1, Titan GUM_——__________ [Jal kabinity as “env geagericangeaites. "/ CaCOg- ds, 8 go - Co,Cobalt_____——-sd&[]W, Tungsten Cr ,Chromium____—s[] VV, Vana §um____________ []_Oil s Grease ____0.G]_ 'JCu,Copper____— [Zn Zinc —________<0.005 ___ [] Sulfide ____<0.003 Fe,Iron__ (]Zr Zirconium (] * * * * * * "Hg Mercury _____—— [Ammonia ______._ [ ]mhos Conductivity Nitrogen-N i yK,Potassium______-s([] Kedah) —_______—__ Nitrogen-N / |Mg ,Magnesium (JNitrate-N_ «Turbidity NTU []pH Units ——___ i ]Mn ,Manganese []Nitrite-N___— «(JC Units |Mo ,Molybdenum____s[.] Phosphorus ——______——___- (]T.Coliform/100m1 (Ortho)-P i JNa,Sodium___ [Jor ide —__________ [] Bickel _ [Fluoride sO) ( ( CHEMICAL & GEOLOGICAL LABORATORIES OF ALASKA, INC. —== ANCHORAGE INDUSTRIAL CENTER P.O. BOX 4-1276 TELEPHONE (907)-279-4014 5633 8B Street TARO m ATOM ES Anchorage, Alaska 99509 274-3364 ANALYTICAL REPORT . Jo Angoon, Alaska "TOMER _‘Tryck, Nyman & Hayes SAMPLE LOCATION: FOR LAB USE ONLY | ATE COLLECTED__5-42-80_ __TIME COLLECTED: 2:00 PM LAB # SOURCE__Hatchery Water ______— iPLED BY___._ -——_ _~__- {MARKS NO PRESERVED BOTTLES — Alluminum due to presence of Aluminum Silicates DATE COMPLETED: DATE REPORTED. 5-23-80 sicnen Loe CL. Lbs mg/1 eit mg/h ae ag/ Ag, Silver_____<0-003__ (iP, Phosphor ous <0.02 []Pb,Lead JAl,Al uminum___»_——— > As ,Arsenic____-<0-0L__ (]pt,Platinum_____ [Phenol []Total Dissolved__82 Solids [Jse,Seleniun__—<0-01__ []Total Volatile ——_____— Solids [Suspended —____ Solids ( 181, Bismuth__ (]sn ,Tin___——____—. []Volatile Suse LL . Ms pended Solids []Sr Strontium ——____—_—__— []Hardness as__——___——— it ; CaCO 70 ‘Ca kal inity as —__—_____— CaC03 °: eh Q Oi1~& ‘Grease Au ,Gold___—————————— []Sb Antimony _____—_——— _ ;B, Boron___— \Ba ,Barium____S9- L._. (JSi,Si1 icon —_______—_ }Ca Calcium ______— . ]Cd Cadmium ___<0..0005 _ (Ti ,Titanium———_—_. _]Co,Cobal t_ —_____ (JW, Tungsten—_______—_ Jcr ,Chromi um____<0.03 __ CV, Vanadium____$0-09 __ j_____—————. ———_ [ Jcu,copper___<0-006_ (]Zn Zinc ______ (]————__—- —__——_ JFe, Iron OE (]Zr Zirconium <0.05 Ce * * * * * * "Hg Mercury_____-9-0002_ [Ammonia <0.002 []mmhos Conductivity ; Nitrogen-N | ]k,Potassium____<0.5__. [] kjedahh) —__———— C]pH units —____-+._ i : Nitrogen-N Mg Magnesium 1.4 [JNitrate-n___<0-2 []Turbidity NTU [ ]Mn ,MHanganese <0.01 []Nitrite-N. <0.01 []Color Units []T.Coliform/100m1 _]Mo ,Mol ybdenum____»___ []Phosphorus ——____- ey |e (Ortho) -P | ei 1.2 [JChloride a []izon Bacteria 0. i Nickel <0.01L_ {]Fluoride <0.1 0) an —.rine 2M