2 edition of Stock assessment of the return of late-run chinook salmon to the Kenai River, 1993 found in the catalog.
Stock assessment of the return of late-run chinook salmon to the Kenai River, 1993
by Alaska Dept. of Fish and Game, Division of Sport Fish in Anchorage
Written in English
The estimated total return of late-run chinook salmon Oncorhynchus tshawytscha to the Kenai River in 1993 was 64,583. This estimate does not include fish harvested in the recreational marine fishery near Deep Creek, which will be available later in 1994 from the Statewide Harvest Survey. The total harvest in marine gill net fisheries, commercial drift and set net fisheries, and the Kenaitze Indian educational set gill net fishery was 14,909. The total inriver return of late-run chinook salmon estimated through hydroacoustic techniques was 49,674. The estimated angler-effort and harvest measured from a creel survey during the late chinook salmon run were 293,908 angler-hours and 15,279 chinook salmon, respectively. Release mortality was estimated at 363 fish. Spawning escapement was 34,032 and met spawning requirements stipulated in the management plan. The predominant age class of the commercial harvest, inriver return, and recreational harvest was age-1.4 fish. Migratory timing models were used to project spawning escapement during the 1993 fishery. No additional restrictions to the fishery were required to achieve escapement goals. A relatively strong return allowed for an additional 4 days of recreational fishing in August. A sibling model was used to forecast the 1994 return of chinook salmon to the Kenai River at 66,876 (SE = 19,021) fish. Production from the 1984 brood did little better than replacement. However, production from the 1985 brood was 1.86 returning fish-per-spawner. Production from the 1986 brood will approximate replacement. Production from the 1987 brood has been 1.63 returning fish-per-spawner with age 7 and 8 to return in 1994 and 1995, respectively.
|Statement||by S.L. Hammarstrom.|
|Series||Fishery data series -- no. 94-8.|
|Contributions||Alaska. Division of Sport Fish.|
|The Physical Object|
|Pagination||v, 61 p. :|
|Number of Pages||61|
1. Estimated daily chinook salmon passage, Kenai River sonar, early run, 12 2. Estimated daily chinook salmon passage, Kenai River sonar, late run, 13 3. Variance components of the seasonal estimates of fish passage for early and late runs of chinook. The fall Chinook salmon run on the Columbia River is the largest ever, and could hit 1 million fish by the time it is done. The fish count at Bonneville Dam went over , on Friday, the.
the Kenai River mouth (Fig. 2). Analysis of scales from adults harvested in the Kenai River suggests that these fish as juveniles spend 1 yr in freshwater (Hmmustrom 1) and thus, they are "'stream-type" chinook salmon (Healey ). Although 5-yr- Can. 9. Fish. File Size: KB. In the Deschutes River basin, management of spring Chinook salmon is often based on the number of wild fish expected to return to the Warm Springs River. The Confederated Tribes of the Warm Springs Reservation of Oregon’s minimum escapement goal for wild fish upstream of Warm Springs NFH is 1, adults. If less than 1, adults are.
The Kenai River is the most popular sport fishing destination in Alaska, particularly for King or Chinook salmon. Each year there are two runs each of king salmon, [coho salmon]], sockeye salmon, plus a run of pink salmon every other year. The world record king salmon, which weighed about 44 kg (97 lb), was caught in the Kenai River in The Kenai is also the home of trophy size rainbow Country: United States. Marking juvenile chinook salmon in the Kenai River and Deep Creek, Alaska, (Fishery data series) [Terrence N Bendock] on *FREE* shipping on qualifying offers.
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However, the Chinook Salmon Stock Assessment and Research Plan recommended an annual project to estimate juvenile abundance in the Kenai River by run (early and late).
This project would include funding to capture, coded wire tag, and genetically identify juvenile Chinook salmon by early and late run. Chinook (king) salmon have been returning in fewer numbers to many rivers across Alaska sincerequiring painful restrictions on fisheries that harvest these stocks.
Chinook salmon have a life span of 3 to 8 years, with 5 and 6 year old fish being especially important to the reproductive health of a Chinook salmon population having nearly all of the female fish. Chinook salmon returning to the Copper River drainage pass through the Copper River Delta and begin to enter the Copper River in early May.
The peak timing in the Lower Copper River is from mid-May to mid-June, with the return essentially complete by July 1. Stephen Hammarstrom has written: 'Stock assessment of the return of early-run chinook salmon to the Kenai River, ' -- subject(s): Statistics, Fish populations, Chinook salmon, Fishery.
The finalized Chinook Salmon Stock Assessment and Research Plan,is now available. This plan results from collaboration and partnering with federal agencies and academia to develop the gap analysis and convening the Chinook Salmon Symposium to inform. Stock composition estimates were developed for the return based on the distribution of daily releases of radio-tagged fish weighted by daily measures of abundance and adjusted for fish harvested in fisheries.
The Chinook salmon run was composed primarily of Tanana River. Stock Assessment of Elk River Fall Chinook Salmon for Exploitation Rate Analysis Prepared by: Ron Williams Oregon Department of Fish and Wildlife Cherry Avenue Salem, Oregon March This project was funded through the US Section of the Pacific Salmon Commission, National Marine Stock assessment of the return of late-run chinook salmon to the Kenai River Service Award number – NA97FP Chinook Hatchery Program is to reintroduce spring Chinook salmon into Lookingglass Creek using the Catherine Creek (captive brood) stock to support natural population restoration, tributary harvest, and maintenance of a gene bank for for the Catherine Creek stock.
Chinook Salmon Oncorhynchus tshawytscha returns to the Yukon River basin have declined dramatically since the late s, and detailed information on the spawning distribution, stock structure.
Return statistics for the early run of chinook salmon into the Kenai River, 7 2. Return statistics for the late run of chinook salmon into the Kenai River, 10 3. Summary statistics for migratory timing data base for.
Annual harvests of Kenai River late-run Chinook salmon below the sonar and netting stock assessments at RM 9 ranged from fish in to nea fish in (Table 1).
Annual harvests above RM 9 ranged from fish in to nea in In fact, ADF&G readily admits they know very little about the late run of King salmon on the Kasilof and in the last few years they have redirected some funding in an effort to establish some baseline for a preliminary stock assessment.
Interest in the late run of Kasilof kings dates back to when the Fish and Game launched a feasibility. The two Kenai River wild Chinook (King) Salmon runs (early-May/June & late July) have been under stress in recent years, particularly between ~ The runs have been closely monitored and restricted or closed based on in river estimates which come from both test netting and the new ADF&G sonar which has been moved upriver near mile 1st Run Chinook (King Salmon) on the Kenai River: 15, 2nd Run Chinook on the Kenai River: 42, 1st Run Sockeye (Red Salmon) on the Kenai River (all bound for the Russian River): 52, 2nd Run Sockeye on the Kenai River (spawning in all tributaries, the main Kenai, and adjacent lakes):(almost a million, in fact was nearly 1.
We previously constructed and validated a high-fidelity, data-driven, agent-based model of the Kenai River, Alaska that simulates seasonal harvest of sockeye and Chinook salmon, the fishing.
Elk River domestic stock as ERIS for MOC group. The only group of chinook with the proper qualifications to serve as a mid-coast stock ERI was the Elk River hatchery stock.
The catch distribution shown in Figure 1 is more similar to the adjacent stocks of the Coos, Coquille, and Umpqua rivers than is the catch distribution of the Salmon River. Kenai River King Salmon Run: Two runs of King Salmon are expected with the Early Run from mid-May to July and the late run is from early July to season closure in late July or early August.
Kasilof River King Salmon Run: King Salmon arrive in Late May until the end of the season typically in late July. (b) The Kenai River late-run sockeye salmon commercial, sport, and personal use fisheries shall be managed to (1) meet an optimum escapement goal (OEG) range of- 1, late-run sockeye salmon; (2) achieve inriver goals as established by the board and measured at the Kenai River sonar counter located at river mile 19; and.
Chinook Salmon Passage in the Kenai River at River Mile Using Adaptive Resolution Imaging Sonar, by. James D. Miller. Debby L. Burwen. Brandon H. Key. and. Steven J. Fleischman. July Alaska Department of Fish and Game Divisions of Sport Fish and Commercial Fisheries. In an effort to conserve Chinook Salmon in the Kenai River, the Federal subsistence rod and reel fishery for early-run Chinook Salmon in the Kenai River downstream from the outlet of Skilak Lake will be closed beginning a.m., Friday, J through p.m., Sunday, J This closure prohibits all subsistence rod and reel fishing for Chinook Salmon.
The Kenai River receives two separate runs of Sockeyes, the first beginning in mid-June and the second in mid-July. The first run fish are headed directly for the Russian River, a small clear-water tributary of the Kenai River, and represents the smaller of the two runs with an annual return of 30, fish.In early July our focus is on the first returns of late-run king salmon.
Fishing on the middle and lower sections of the river improves daily and by mid-July the run is nearing its peak. From this point of July on we will stop back-trolling the middle river and begin drifting with the tides down low.systems in upper Cook Inlet, Alaska, that produce sockeye salmon, including the Kenai River drainage, a major system that was affected by the Exxon Valdez oil spill.
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