Escapement Goal Review for Susitna River Sockeye Salmon, 2009 PDF Download
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Author: Lowell F. Fair
Publisher:
ISBN:
Category : Escapement (Fisheries)
Languages : en
Pages : 41
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Book Description
This report is a summary of reviews and recommendations for the Susitna River sockeye salmon escapement goals in Upper Cook Inlet, Alaska.
Author: Lowell F. Fair
Publisher:
ISBN:
Category : Escapement (Fisheries)
Languages : en
Pages : 41
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Book Description
This report is a summary of reviews and recommendations for the Susitna River sockeye salmon escapement goals in Upper Cook Inlet, Alaska.
Author: Timothy T. Baker
Publisher:
ISBN:
Category : Escapement (Fisheries)
Languages : en
Pages : 60
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Book Description
Author: Sara E. Miller
Publisher:
ISBN:
Category : Escapement (Fisheries)
Languages : en
Pages : 61
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Book Description
We reviewed the escapement goal for the Chilkat Lake sockeye salmon (Oncorhynchus nerka) run, which is intensely harvested in the District 15 commercial drift gillnet fishery in Lynn Canal, Southeast Alaska. The current biological escapement goal of 70,000 to 150,000 sockeye salmon was established in 2009, based on a spawner-recruit analysis with weir counts converted to mark-recapture units. We fit age-structured state-space spawner-recruit models to updated 1976-2016 data on abundance, harvest, age composition, and coefficients of variation to examine the effect of autocorrelation and fry plants on recruits and to recommend a new biological escapement goal in Dual-frequency Identification Sonar (DIDSON) units. Historical mark-recapture and weir counts were considered indices of escapement, while the DIDSON counts (2008-2016) were considered 'true' counts of escapement. Fishery management reference points as well as optimal yield, optimal recruitment, and overfishing profiles were estimated from the final state-space Ricker model. Estimates derived from the state-space Ricker model suggest that the probability of achieving yields greater than 90% of maximum sustained yield from escapements at the current upper and lower bounds is 62% and 34%, respectively, and an average 65% over the entire escapement goal range. Therefore, we recommend maintaining the current biological escapement goal of 70,000 to 150,000 sockeye salmon counted at the Chilkat Lake weir site with the DIDSON sonar.
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: Andrew Roy Munro
Publisher:
ISBN:
Category : Escapement (Fisheries)
Languages : en
Pages : 0
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Book Description
This report summarizes statewide Pacific salmon escapement goals in effect in 2022 and documents escapements for all species and stocks with goals from 2014 through 2022. 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. For the 2021–2022 Alaska Board of Fisheries meeting cycle, escapement goals were reviewed for the Southeast Region and Prince William Sound Management Area, which had been postponed from the 2020–2021 meeting cycle because of the COVID-19 pandemic. As a result of these reviews, there were 7 escapement goal changes for 2022. In the Southeast Region, 2 escapement goals were updated (1 coho and 1 sockeye salmon), and in Prince William Sound, 4 escapement goals were updated (2 coho and 2 sockeye salmon) and the Copper River Chinook salmon escapement goal was revised from a lower-bound SEG to an SEG with an upper and lower bound. The number of salmon escapement goals in Alaska remained at 264. In 2022, 67% of the escapement goals in Alaska were met or exceeded and 33% of the stocks did not meet minimum escapement goals.
Author: John H. Clark
Publisher:
ISBN:
Category : Escapement (Fisheries)
Languages : en
Pages : 30
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Book Description
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: Timothy T. Baker
Publisher:
ISBN:
Category : Escapement (Fisheries)
Languages : en
Pages : 110
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Book Description
This report contains recommendations after the Alaska Department of Fish and Game Escapement Goal Review Committee reviewed Pacific salmon, Oncorhynchus spp., escapement goals for the major river systems in Bristol Bay. Spawner-return data were evaluated for: sockeye salmon, O. nerka, in the Ugashik, Egegik, Kvichak, Naknek, Alagnak, Wood, Nushagak, Igushik, Togiak, and Kulukak Rivers; chinook salmon, O. tshawytscha, in the Nushagak, Togiak, Alagnak, Naknek, and Egegik Rivers; chum salmon, O. keta, in the Nushagak River; coho salmon, O. kisutch, in the Togiak, Nushagak, and Kulukak Rivers; and pink salmon, O. gorbuscha, in the Nushagak River.
Author: Stormy Haught
Publisher:
ISBN:
Category : Escapement (Fisheries)
Languages : en
Pages : 63
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Book Description
This report is a summary of escapement goal reviews and recommendations for major salmon stocks of the Upper Copper River and Prince William Sound Management Areas. Escapement goals were reviewed based on the Policy for the Management of Sustainable Salmon Fisheries (5 AAC 39.222) and the Policy for Statewide Salmon Escapement Goals (5 AAC 39.223) adopted by the Alaska Board of Fisheries into regulation in 2001. The escapement goal committee reviewed 29 existing escapement goals, including 1 Chinook Oncorhynchus tshawytscha , 5 chum O. keta , 2 coho O. kisutch, 16 pink O. gorbuscha (8 goals for each even- and odd-year brood line), and 5 sockeye O. nerka salmon stocks. The escapement goal committee also reviewed escapement data for Gulkana River Chinook salmon, but decided not to consider establishing an escapement goal until a sufficient time series of data are available to better understand how well the current tower count project indexes escapement. All of the existing goals were adopted in 2002, 2005, 2008, or 2011 except for the 2 coho salmon goals that were adopted in 1991. The escapement goal committee recommends all Chinook, chum, and pink salmon escapement goals be updated. The escapement goal committee recommends no modifications be made to the existing coho and sockeye salmon escapement goals, and that no goals are eliminated or created at this time.
