Escapement Goal Review for Kenai River Late-run Sockeye Salmon PDF Download
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Author: John H. Clark
Publisher:
ISBN:
Category : Escapement (Fisheries)
Languages : en
Pages : 30
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Book Description
Author: John H. Clark
Publisher:
ISBN:
Category : Escapement (Fisheries)
Languages : en
Pages : 30
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Book Description
Author: James J. Hasbrouck
Publisher:
ISBN:
Category : Escapement (Fisheries)
Languages : en
Pages : 0
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Book Description
The current sustainable escapement goal (700,000–1,200,000) for Kenai River late-run sockeye salmon was established in 2011. For this escapement goal review, the escapement time series and production data were updated through 2018. The fit of 6 spawner–recruit models to data from brood years 1968–2012 and brood years 1979–2012 was examined. Although the classic Ricker model was determined the most appropriate to use given the data, all brood years were estimated to have replaced themselves, which compromised obtaining accurate and precise estimates of most model parameter estimates and biological reference points, including a scientifically defensible estimate of maximum sustained yield. Markov-type yield tables were constructed to evaluate yields at different levels of escapement. We recommend the sustainable escapement goal for Kenai River late-run sockeye salmon be revised to 750,000–1,300,000 fish because the analyses indicated escapements in this range will likely provide better yields.
Author: Jack W. Erickson
Publisher:
ISBN:
Category : Escapement (Fisheries)
Languages : en
Pages : 98
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Book Description
The Alaska Department of Fish and Game interdivisional escapement goal review committee reviewed Pacific salmon Oncorhynchus spp. escapement goals for the major river systems in Upper Cook Inlet. Escapement goals were reviewed for 21 Chinook salmon O. tshawytscha, 1 chum salmon O. keta, 4 coho salmon O. kisutch, and 9 sockeye O. nerka salmon stocks. The committee recommended to the Divisions of Commercial Fisheries and Sport Fish directors changes to 2 Chinook salmon goals (early- and late- run Kenai River), 1 chum salmon goal (Clearwater Creek), and 4 sockeye salmon goals (Chelatna, Judd, and Larson lakes and Fish Creek). The committee also recommended creating 1 Chinook salmon (Little Susitna River; weir-based goal) and 1 coho salmon (Deshka River) escapement goal.
Author: Timothy R. McKinley
Publisher:
ISBN:
Category : Escapement (Fisheries)
Languages : en
Pages : 99
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Book Description
The Alaska Department of Fish and Game interdivisional escapement goal review committee reviewed Pacific salmon (Oncorhynchus spp.) escapement goals for the major river systems in Upper Cook Inlet. Escapement goals were reviewed for 21 Chinook salmon, 1 chum salmon, 4 coho salmon, and 9 sockeye salmon stocks. The committee recommended to the Commercial Fisheries and Sport Fish division directors updates to 7 Chinook salmon goals (Deshka River, Alexander Creek, Chulitna River, Chuitna River, Theodore River, Little Susitna River, and Crooked Creek), consolidation of 10 Chinook salmon goals into 3 goals (Eastside Susitna, Talkeetna River, and Yentna River), a discontinuation of 11 Chinook salmon goals (Goose Creek, Little Willow Creek, Montana Creek, Sheep Creek, Willow Creek, Clear [Chunilna] Creek, Prairie Creek, Talachulitna River, Lake Creek, Peters Creek, and Lewis River), updates to 3 coho salmon goals (Fish Creek, Jim Creek, and Little Susitna River), and updates to 3 sockeye salmon goals (Kasilof River, Kenai River, and late-run Russian River).
Author: Andrew Roy Munro
Publisher:
ISBN:
Category : Escapement (Fisheries)
Languages : en
Pages : 78
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Book Description
This report summarizes statewide Pacific salmon escapement goals in effect in 2017 and documents escapements for all species and stocks with goals from 2009 through 2017. Annual escapements are compared against escapement goals in place at the time to assess outcomes, with summaries by the Division of Commercial Fisheries regions. We list methods used to enumerate escapements and to develop current escapement goals (with brief descriptions) for each monitored stock. Escapement goals were reviewed for Upper Cook Inlet, Lower Cook Inlet, and Kodiak management areas leading up to the 2016/2017 Board of Fisheries meeting cycle. As a result of these reviews, there were 53 escapement goal changes in 2017, including the elimination of 2 goals, establishment of 2 new goals, and the replacement of the Kenai River early- and late-run Chinook salmon goals based on all fish with escapement goals based on large fish only. In addition, two Optimal Escapement Goals were removed from management plans by the Alaska Board of Fisheries. In 2017, 83% of the escapement goals were met or exceeded and 17% of the stocks did not meet minimum escapement goals.
Author: Timothy R. McKinley
Publisher:
ISBN:
Category : Escapement (Fisheries)
Languages : en
Pages : 144
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Book Description
An interdivisional team of staff from the Alaska Department of Fish and Game met beginning in March 2019 to review existing Pacific salmon (Oncorhynchus) escapement goals in the Kodiak Management Area (KMA) and make recommendations to the directors of the divisions of Commercial Fisheries and Sport Fish. The KMA salmon escapement goals had been reviewed previously in 2016. The current review team recommends 21 goals remain unchanged, and 1 goal be revised (Olds River coho salmon [O. kisutch] lower bound sustainable escapement goal of 500). In addition, a change in designation from a biological escapement goal to a sustainable escapement goal is recommended for 3 goals (Afognak River sockeye salmon [O. nerka], Upper Station late-run sockeye salmon, and Buskin River coho salmon). When combined with existing escapement goals, these staff recommendations to the directors of the divisions of Commercial and Sport Fisheries result in 22 escapement goals for the KMA in 2019: 12 for sockeye salmon, 2 for Chinook salmon (O. tshawytscha), 4 for coho salmon, 3 for pink salmon (O. gorbuscha), and 1 for chum salmon (O. keta).
Author: Stephen M. Fried
Publisher:
ISBN:
Category : Fish stock assessment
Languages : en
Pages : 12
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Book Description
Author: Heather Finkle
Publisher:
ISBN:
Category : Escapement (Fisheries)
Languages : en
Pages : 0
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Book Description
In October 2020, an interdivisional team of staff from the Alaska Department of Fish and Game reviewed existing Pacific salmon Oncorhynchus escapement goals in the Chignik Management Area (CMA). The 6 CMA salmon escapement goals were last reviewed in 2018. Starting in 2020, the team reviewed recent data to determine whether substantial new information existed to warrant analyzing and updating the goals. The team determined Chignik sockeye salmon warranted further review. The team revised the early- and late-run sockeye salmon goals to a single biological escapement goal (BEG) of 450,000 to 800,000 fish to address overlaps and subsequent bottlenecks in freshwater rearing between the 2 major stocks. The early- and late-run sockeye salmon goals will be eliminated, and no new goals were added for systems currently without escapement goals.
Author: Kevin L. Schaberg
Publisher:
ISBN:
Category : Escapement (Fisheries)
Languages : en
Pages : 144
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Book Description
An interdivisional team of staff from the Alaska Department of Fish and Game met 3 times beginning in March 2016 to review existing Pacific salmon Oncorhynchus spp. escapement goals in the Kodiak Management Area (KMA), for the purpose of making recommendations to the directors of the divisions of Commercial Fisheries and Sport Fish. The KMA salmon escapement goals had previously been reviewed in 2013. The review team recommends 18 goals remain unchanged, the elimination of 2 goals (Uganik Lake sockeye salmon O. nerka lower-bound sustainable escapement goal, and Mainland District chum salmon O. keta aggregate lower-bound sustainable escapement goal), and the revision of 4 goals (Ayakulik Chinook salmon O. tshawytscha biological escapement goal range 4,800?8,400, Karluk River early-run sockeye salmon biological escapement goal range 150,000?250,000, Karluk River late-run sockeye salmon biological escapement goal range 200,000?400,000, and Kodiak Archipelago chum salmon aggregate lower-bound sustainable escapement goal 101,000). When combined with existing escapement goals, these staff recommendations to the directors of the divisions of Commercial and Sport Fisheries result in 22 escapement goals for the KMA in 2017: 12 for sockeye salmon, 2 for Chinook salmon, 4 for coho salmon O. kisutch, 3 for pink salmon O. gorbuscha, and 1 for chum salmon.
Author: Stacy L. Vega
Publisher:
ISBN:
Category : Escapement (Fisheries)
Languages : en
Pages : 0
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Book Description
The Alaska Department of Fish and Game interdivisional escapement goal review committee reviewed Pacific salmon Oncorhynchus spp. escapement goals for the major river systems in Bristol Bay. There were 13 escapement goals reviewed in the Bristol Bay management area for this review. The committee evaluated spawner-return data for all Bristol Bay sockeye salmon O. nerka and Chinook salmon O. tshawytscha stocks with escapement goals. For this escapement goal review, the committee recommends that all sockeye salmon escapement goals in the Bristol Bay management area remain the same. After the development of a run reconstruction model recommended at the last cycle, the committee also recommends no change to the Nushagak River Chinook salmon escapement goal for this cycle and that a run reconstruction-based escapement goal be considered during the next Board of Fisheries cycle.
