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Speel Lake Sockeye Salmon Stock Status And Escapement Goal Review
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Book Synopsis Speel Lake Sockeye Salmon Stock Status and Escapement Goal Review by : Steven C. Heinl
Download or read book Speel Lake Sockeye Salmon Stock Status and Escapement Goal Review written by Steven C. Heinl and published by . This book was released on 2014 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt: Review of the sockeye salmon escapement goal for Speel Lake, a small system located approximately 50 km southeast of Juneau, Alaska, that contributes to commercial drift gillnet fisheries in Southeast Alaska District 11.
Book Synopsis Chilkoot Lake Sockeye Salmon Stock Status and Escapement Goal Review by : Rich Brenner
Download or read book Chilkoot Lake Sockeye Salmon Stock Status and Escapement Goal Review written by Rich Brenner and published by . This book was released on 2018 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chilkoot Lake, located in upper Lynn Canal near the city of Haines, supports one of the largest runs of sockeye salmon (Oncorhynchus nerka) in southeast Alaska. This stock is currently managed as a sustainable escapement goal range with a lower bound of 38,000 and an upper bound of 86,000 spawners. Escapement is monitored by the Alaska Department of Fish and Game with a weir on the Chilkoot River, and stock of origin from the District 15 commercial drift gillnet fishery harvest is determined using scale pattern analysis. We used Ricker spawner-recuit models in a Bayesian framework to fit data from brood years 1976-2010. Given significant autocorrelation at lag-1, we chose an autoregressive Ricker model for this assessment. Based on model results, maximum sustainable yield would be achieved with an escapement of approximately 52,900 sockeye salmon (median of spawning abundance at maximum sustained yield), and a range of 45,000-60,000 spawners would result in a greater than 80% probability of achieving at least 90% of maximum sustainable yield. This range of escapements fits within the current escapement goal range and, given considerable uncertainty in parameter estimates, we do not recommend changes to the goal at this time. However, some large escapements since 2012 will provide contrast to the existing data once the resulting recruits can be enumerated; thus, we recommend reassessing this escapement goal prior to the Alaska Board of Fisheries meeting in 2021.
Book Synopsis A Review of Escapement Goals for Salmon Stocks in Lower Cook Inlet, Alaska, 2023 by : Edward O. Otis
Download or read book A Review of Escapement Goals for Salmon Stocks in Lower Cook Inlet, Alaska, 2023 written by Edward O. Otis and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Review of Salmon Escapement Goals in Southeast Alaska, 2020 by : Steven C. Heinl
Download or read book Review of Salmon Escapement Goals in Southeast Alaska, 2020 written by Steven C. Heinl and published by . This book was released on 2021 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Review of Salmon Escapement Goals in Southeast Alaska, 2014 by : Steven C. Heinl
Download or read book Review of Salmon Escapement Goals in Southeast Alaska, 2014 written by Steven C. Heinl and published by . This book was released on 2014 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Alaska Department of Fish and Game interdivisional escapement goal review committee reviewed Pacific salmon Oncorhynchus spp. escapement goals for Southeast Alaska in 2014. As specified in the Pacific Salmon Treaty, escapement goal recommendations for transboundary Alsek and Klukshu river Chinook and sockeye salmon runs underwent bilateral U.S./Canada review, and recommended changes were adopted by the Transboundary River Panel of the Pacific Salmon Commission in 2013. Thus, as of 2013, escapement goals were established for 12 Chinook, 14 sockeye, 14 coho, 4 pink, and 8 chum salmon stocks. The Southeast escapement goal review committee recommended to the directors of the divisions of Commercial Fisheries and Sport Fish that all but 5 of those escapement goals remain unchanged. The committee recommended (1) changing the Speel Lake sockeye salmon goal from a biological escapement goal range of 4,00-13,000 fish to a sustainable escapement goal range of 4,000-9,000 fish; (2) changing the Lost River coho salmon goal from a lower-bound sustainable escapement goal of 2,200 fish to a sustainable escapement goal range of 1,400-4,200 fish, and changing the name of the goal to Tawah Creek (Lost River); (3-4) increasing aggregate lower-bound sustainable escapement goals for summer-run chum salmon in the Southern Southeast and Northern Southeast Outside subregions to account for the addition of new index streams to those stock groups; and, finally, (5) changing the Chilkat River fall-run chum salmon sustainable escapement goal range of 75,000-170,000 fish to a range of 75,000-250,000 fish.
Book Synopsis Sockeye Salmon Stock Status and Escapement Goals in Southeast Alaska by : Douglas Murrell Eggers
Download or read book Sockeye Salmon Stock Status and Escapement Goals in Southeast Alaska written by Douglas Murrell Eggers and published by . This book was released on 2008 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work represents a review of escapement goals for sockeye salmon stocks (Oncorhynchus nerka) in the Southeast Alaska and Yakutat area.
Book Synopsis A Review of Escapement Goals for Salmon Stocks in Lower Cook Inlet, Alaska, 2016 by : Edward O. Otis
Download or read book A Review of Escapement Goals for Salmon Stocks in Lower Cook Inlet, Alaska, 2016 written by Edward O. Otis and published by . This book was released on 2016 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Sockeye Salmon Stock Status and Escapement Goal for Redoubt Lake in Southeast Alaska by : Harold J. Geiger
Download or read book Sockeye Salmon Stock Status and Escapement Goal for Redoubt Lake in Southeast Alaska written by Harold J. Geiger and published by . This book was released on 2003 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Escapement Goal Review of Copper and Bering Rivers, and Prince William Sound Pacific Salmon Stocks, 2020 by : Philip John Joy
Download or read book Escapement Goal Review of Copper and Bering Rivers, and Prince William Sound Pacific Salmon Stocks, 2020 written by Philip John Joy and published by . This book was released on 2021 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report is a summary of escapement goal 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 recommends escapement goals be updated for 5 stocks: Copper River Chinook salmon, Copper River Delta and Bering River coho salmon, and Bering River and Coghill Lake sockeye salmon. The escapement goal committee recommends that no modifications be made to the other existing salmon escapement goals and that no goals be eliminated or created at this time.
Book Synopsis Sockeye Salmon Stock Status and Escapement Goals for Chilkoot Lake in Southeast Alaska by : Douglas Murrell Eggers
Download or read book Sockeye Salmon Stock Status and Escapement Goals for Chilkoot Lake in Southeast Alaska written by Douglas Murrell Eggers and published by . This book was released on 2009 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Escapement Goal Recommendations for Select Arctic-Yukon-Kuskokwim Region Salmon Stocks, 2019 by : Zachary W. Liller
Download or read book Escapement Goal Recommendations for Select Arctic-Yukon-Kuskokwim Region Salmon Stocks, 2019 written by Zachary W. Liller and published by . This book was released on 2018 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt: An Alaska Department of Fish and Game (ADF&G) escapement goal review team evaluated salmon stocks in the Arctic-Yukon-Kuskokwim (AYK) region in advance of the January 2019 Alaska Board of Fisheries (BOF) meeting. At the time of this review there existed 65 escapement goals for salmon stocks in the AYK region, including 5 optimum escapement goals established by the BOF. The review team did not recommend any new escapement goals be established at this time. The review team has recommended that 12 escapement goals be revised and 7 escapement goals be discontinued. The recommendations made by the review team were intended to align salmon escapement goals throughout the region with current fishery management practices and status of escapement monitoring programs. Within the Norton Sound-Port Clarence Area, the review team recommended discontinuing the Norton Sound Subdistrict 1 aggregate chum salmon Oncorhynchus keta goal and revising goals for the Eldorado, Nome, and Snake rivers which contribute to the aggregate. Revisions were also recommended for chum salmon goals established for the Kwiniuk and Tubutulik rivers and the sockeye salmon O. nerka goal established for Salmon Lake/Grand Central River. Within the Kotzebue Area, the review team recommended discontinuing the Kotzebue-wide aggregate chum salmon goal and individual chum salmon goals for the Salmon, Squirrel, and Tutuksuk rivers. Additionally, revisions were recommended for the 2 remaining chum salmon escapement goals established for the Noatak and Upper Kobuk/Selby rivers. Within the Yukon Area, the review team recommended discontinuation of the Tanana River fall chum salmon goal and revisions to fall chum salmon goals for the Delta and Chandalar rivers. Within the Kuskokwim Area, the review team recommended discontinuation of the Holitna River Chinook salmon O. tschawytscha aerial survey goal and revised the existing Chinook and sockeye salmon goals for the Middle Fork of Goodnews River.
Book Synopsis Sockeye Salmon Stock Status and Escapement Goal for Hugh Smith Lake in Southeast Alaska by : Harold J. Geiger
Download or read book Sockeye Salmon Stock Status and Escapement Goal for Hugh Smith Lake in Southeast Alaska written by Harold J. Geiger and published by . This book was released on 2003 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Escapement Goal Review of Copper and Bering Rivers, and Prince William Sound Pacific Salmon Stocks, 2017 by : Stormy Haught
Download or read book Escapement Goal Review of Copper and Bering Rivers, and Prince William Sound Pacific Salmon Stocks, 2017 written by Stormy Haught and published by . This book was released on 2017 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Review of Salmon Escapement Goals in Southeast Alaska, 2017 by : Steven C. Heinl
Download or read book Review of Salmon Escapement Goals in Southeast Alaska, 2017 written by Steven C. Heinl and published by . This book was released on 2017 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Alaska Department of Fish and Game interdivisional escapement goal review committee reviewed Pacific salmon Oncorhynchus spp. escapement goals for Southeast Alaska in 2017. As of 2016, escapement goals were established for 12 Chinook, 14 sockeye, 14 coho, 4 pink, and 8 chum salmon stocks. The Southeast escapement goal review committee recommended changes to escapement goals to the directors of the divisions of Commercial Fisheries and Sport Fish as follows: (1, 2, 3) replace escapement goal ranges for Chickamin, Blossom, and Keta river Chinook salmon, which are expressed in index survey counts, with ranges expressed as total escapement; (4) eliminate the Klukshu (Alsek) River Chinook salmon goal; (5) eliminate the combined East Alsek-Doame river sockeye salmon biological escapement goal (13,000-26,000 fish) and replace it with a sustainable escapement goal (range 9,000-24,000 fish) germane only to the East Alsek River; (6) eliminate the Lost River sockeye salmon goal; (7) eliminate the Alsek River sockeye salmon goal (8); change the Berners River coho salmon biological escapement goal from 4,000-9,200 fish to 3,600-8,100 fish; (9) change the Tsiu-Tsivat river coho salmon goal from a biological escapement goal to a sustainable escapement goal while maintaining the same goal of 10,000-29,000 fish; (10) eliminate the Ford Arm Creek coho salmon goal; (11) eliminate the Situk River pink salmon goal; and (12) change the aggregate Northern Southeast Inside summer-run chum salmon lower bound sustainable escapement goal from 119,000 to 107,000 fish. As a result of these recommendations, a total of 47 Southeast Alaska escapement goals would be established for 11 Chinook, 12 sockeye, 13 coho, 3 pink, and 8 chum salmon stocks.
Book Synopsis Summary of Pacific Salmon Escapement Goals in Alaska with a Review of Escapements from 2014 to 2022 by : Andrew Roy Munro
Download or read book Summary of Pacific Salmon Escapement Goals in Alaska with a Review of Escapements from 2014 to 2022 written by Andrew Roy Munro and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Chilkat Lake Sockeye Salmon Escapement Goal Review by : Sara E. Miller
Download or read book Chilkat Lake Sockeye Salmon Escapement Goal Review written by Sara E. Miller and published by . This book was released on 2018 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis McDonald Lake Sockeye Salmon Stock Status and Escapement Goal Recommendations, 2008 by : Douglas Murrell Eggers
Download or read book McDonald Lake Sockeye Salmon Stock Status and Escapement Goal Recommendations, 2008 written by Douglas Murrell Eggers and published by . This book was released on 2009 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discusses the stock assessment of McDonald Lake sockeye salmon, which was implemented to assess the effects of large-scale lake fertilization project that occurred from 1982 to 2004.
