Sustainable Escapement Goals for Chum, Pink, and Sockeye Salmon in Lower Cook Inlet PDF Download
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Author: Edward O. Otis
Publisher:
ISBN:
Category : Escapement (Fisheries)
Languages : en
Pages : 60
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Book Description
Author: Edward O. Otis
Publisher:
ISBN:
Category : Escapement (Fisheries)
Languages : en
Pages : 60
Get Book Here
Book Description
Author: Edward O. Otis
Publisher:
ISBN:
Category : Escapement (Fisheries)
Languages : en
Pages : 0
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Book Description
The Alaska Department of Fish and Game (ADF&G) interdivisional escapement goal review committee (committee) reviewed 41 escapement goals for Pacific salmon Oncorhynchus spp. stocks in Lower Cook Inlet (LCI). 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. All of the existing goals were adopted in 2017, except for 1 chum salmon O. keta stock (McNeil River, adopted 2007) and 2 sockeye salmon O. nerka stocks (Bear and English Bay Lakes, adopted 2001). Except for 2 Chinook salmon O. tshawytscha stocks (Anchor and Ninilchik Rivers) and 4 sockeye salmon stocks (English Bay, Bear, Mikfik, and Chenik Lakes), salmon escapements in LCI are primarily monitored by single or multiple aerial and/or foot surveys of appropriate stream reaches. The resulting escapement indices do not provide absolute abundance estimates suitable for estimating biological escapement goals (BEG). Consequently, all LCI goals are sustainable escapement goals (SEG). There are no escapement goals for coho salmon O. kisutch in LCI. To improve management flexibility and consistency between management areas in Alaska, the committee supported LCI transitioning from stock-specific SEGs for pink (O. gorbuscha, 18 stocks) and chum (12 stocks) salmon to aggregate escapement goals for each of the 3 LCI districts with commercial fisheries targeting these species (Southern, Outer, and Kamishak). ADF&G will continue managing LCI Chinook (3 stocks) and sockeye (8 stocks) salmon using stock-specific SEGs, with 2 Chinook (Anchor and Ninilchik Rivers) and 2 sockeye salmon (Bear and English Bay Lakes) goals changing during this review period.
Author: Henry J. Yuen
Publisher:
ISBN:
Category : Chum salmon
Languages : en
Pages : 128
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Book Description
Author: Edward O. Otis
Publisher:
ISBN:
Category : Escapement (Fisheries)
Languages : en
Pages : 77
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Book Description
The Alaska Department of Fish and Game (ADF&G) interdivisional escapement goal review committee (committee) reviewed Pacific salmon Oncorhynchus spp. escapement goals for major river systems in Lower Cook Inlet (LCI). There were 41 escapement goals evaluated in LCI during this review. Except for 2 Chinook salmon Oncorhynchus tshawytscha stocks (Anchor and Ninilchik rivers) and 4 sockeye salmon O. nerka, stocks (English Bay, Bear, Mikfik, and Chenik lakes), salmon escapements in LCI are primarily monitored by single or multiple aerial and/or foot surveys of appropriate stream reaches. The resulting escapement indices do not provide absolute abundance estimates suitable for estimating biological escapement goals (BEG). Consequently, ADF&G developed sustainable escapement goals (SEG) for 3 Chinook, 12 chum O. keta, 18 pink O. gorbuscha, and 8 sockeye salmon stocks monitored in LCI. There are no escapement goals for coho salmon O. kisutch in LCI. Escapement performance for Chinook, chum, pink, and sockeye salmon relative to the existing goals has been good during the past 4 years, with a harvestable surplus available in 33--100% of streams during most years. Because most of the current goals were implemented 15 years ago and new methods were recently developed for establishing SEGs, the committee recommended changing 37 of 41 escapement goals for salmon stocks in LCI to incorporate the additional escapement data and new methods.
Author: Edward O. Otis
Publisher:
ISBN:
Category : Escapement (Fisheries)
Languages : en
Pages : 0
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The overall purpose of this project is to provide information on the run-timing and magnitude of sockeye salmon Oncorhynchus nerka escapements to Mikfik and Chenik lakes in the Kamishak District of the Lower Cook Inlet Management Area (LCIMA). Results will be used by Alaska Department of Fish and Game (ADF&G) fisheries managers to facilitate informed inseason management of commercial purse seine fisheries targeting these stocks to be consistent with sustained yield of wild stocks (AS 16.05.730), follow appropriate principles and criteria in the Policy for the Management of Sustainable Salmon Fisheries (5 AAC 39.222), and achieve spawning escapement goals (5 AAC 39.223). This plan documents procedures we developed for estimating sockeye salmon escapement using an unmanned, or autonomous video counting tower (AVCT) that employs above-stream remote video cameras and digital time-lapse recording equipment (Otis and Dickson 2002). Hard drives are retrieved regularly, and video reviewed immediately so managers can use these data to adjust fishery openings in season to attain established escapement goals (Hollowell et al. 2022). The annual escapement indices derived by remote video are also used to refine the sustainable escapement goals for these stocks, currently established by ADF&G at 3,400–11,000 for Mikfik Lake and 2,900–13,700 for Chenik Lake (Table 1; Otis et al. 2010, Otis et al. 2013, Otis et al. 2016).
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 842
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Author:
Publisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 170
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Author: Steven C. Heinl
Publisher:
ISBN:
Category : Escapement (Fisheries)
Languages : en
Pages : 93
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The Alaska Department of Fish and Game interdivisional escapement goal review committee reviewed Pacific salmon Oncorhynchus spp. escapement goals for Southeast Alaska in August of 2019 and again early in 2020. Escapement goals were reviewed based on the Policy for the Management of Sustainable Salmon Fisheries (5 AAC 39.222) and the Policy for Statewide Escapement Goals (5 AAC 39.223) adopted by the Alaska Board of Fisheries into regulation in 2001. There is a total of 47 escapement goals in Southeast Alaska for 11 Chinook, 12 sockeye, 13 coho, 3 pink, and 8 chum salmon stocks. The Southeast escapement goal review committee recommended changes to these goals to the directors of the Divisions of Commercial Fisheries and Sport Fish as follows: (1) change the Taku River sockeye salmon sustainable escapement goal range of 71,000–80,000 fish (based on a historical dataset) to a biological escapement goal range of 40,000–75,000 fish based on a revised dataset; and (2) change the Situk River coho salmon biological escapement goal range of 3,300–9,800 fish to a sustainable escapement goal range of 3,800–9,600 fish based on percentiles of historical survey counts. Detailed analyses of Chilkoot, Speel, and Redoubt Lakes sockeye salmon escapement goals are also documented here, although the committee did not recommend changes to those goals.
Author: Timothy R. McKinley
Publisher:
ISBN:
Category : Escapement (Fisheries)
Languages : en
Pages : 144
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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: Edward O. Otis
Publisher:
ISBN:
Category : Escapement (Fisheries)
Languages : en
Pages : 25
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