Author: Alaska. Division of Sport FishPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Development and Implementation of Escapement Goals for the Early of Sockeye Salmon to the Russian River, Alaska
Author: Alaska. Division of Sport FishPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Development and Implementation of Escapement Goals for the Early Return of Sockeye Salmon to the Russian River, Alaska
Author: Doug Vincent-LangPublisher:
ISBN:
Category : Fishery management
Languages : en
Pages : 47
Book Description
Report of a study of the rate at which sockeye salmon (Onchorychus nerka) return to the Russian River, a tributary of the Kenai River in southern Alaska, and proposal for a new management goal.
Development and Implementation of an Escapement Goal Policy for the Return of Chinook Salmon to the Kenai River
Author: Douglas N. McBridePublisher:
ISBN:
Category : Chinook salmon
Languages : en
Pages : 65
Book Description
Provides strategies (escapement goals) to prevent over exploitation of chinook salmon (Oncorhynchus tshawytscha). Methodology consisted of compiling statistics on salmon returns, and river abundance, to arrive at a specific policy, or escapement goal, which can be implemented in the Kenai River (Southcentral Alaska) fisheries.
Fishery Data Series
Author: Fishery Management Plan, Kenai National Wildlife Refuge, FY 1995-1999
Author: U.S. Fish and Wildlife Service. Kenai Fishery Resource OfficePublisher:
ISBN:
Category : Fishery management
Languages : en
Pages : 118
Book Description
Summary of Pacific Salmon Escapement Goals in Alaska with a Review of Escapements from 2014 to 2022
Author: Andrew Roy MunroPublisher:
ISBN:
Category : Escapement (Fisheries)
Languages : en
Pages : 0
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.
Kenai River Sockeye Salmon Biological Escapement Goal Review Team Findings
Author: Stephen M. FriedPublisher:
ISBN:
Category : Fish stock assessment
Languages : en
Pages : 12
Book Description
Biological Escapement Goal for Situk River Sockeye Salmon
Author: John H. ClarkPublisher:
ISBN:
Category : Escapement (Fisheries)
Languages : en
Pages : 62
Book Description
"Commercial, sport, and subsistence/personal use catches, escapements, and age compositions of sockeye salmon Oncorhynchus nerka returning to the Situk River during the years 1976-1994 were analyzed to develop a spawner-recruit relationship"--Abstract.
Operational Plan: Sockeye Salmon Escapement Studies at the Russian River, 2023-2026
Author: Jenny L. GatesPublisher:
ISBN:
Category : Fish populations
Languages : en
Pages : 0
Book Description
The Russian River sockeye salmon escapement assessment project, which began in 1962, is one of the oldest stock assessment projects in the state of Alaska. During 2023–2026, the Russian River weir will be operated annually from early June through the first 7 to 10 days of September. All species of fish seen passing the weir through the fish chute will be enumerated daily. Sampling of sockeye salmon for age, sex, and length data will be done each Friday, and the sample size each week will be based on the previous week’s fish passage. Sockeye and Chinook salmon spawning downstream of the Russian River weir to the confluence of the Russian River and the Kenai River will be assessed by a foot survey during the fourth week of August. Multiple foot surveys will also be conducted from mid-May to 10 June to assess spawning rainbow trout.
Report to the Alaska Board of Fisheries on Spawning Escapement Goal Evaluations for Bristol Bay Salmon
Author: Beverly A. CrossPublisher:
ISBN:
Category : Fishery management
Languages : en
Pages : 96
Book Description
A workshop was held on September 16-18, 1997 in Anchorage by the Alaska Department of Fish and Game to review Pacific salmon Oncorhynchus escapement goals for major rivers in Bristol Bay. Spawner-return data were analyzed for Kvichak, Naknek, Egegik, Ugashik, Wood, Igushik, Nushagak, and Togiak Rivers sockeye salmon 0. nerka. Sockeye smolt information was reviewed for Kvichak, Egegk, and Ugashik Rivers. Available limnological and juvenile information were analyzed fiom Lake Iliarnna. In addition, spawner-return data for Nushagak River chinook salmon O. tshawytscha were also reviewed. With a few exceptions available data supported current escapement goals in Bristol Bay. Based on this most recent escapement goal evaluation, workshop participants recommended the following changes. They recommended restructuring the escapement goal policy for Kvichak River sockeye salmon to a more robust variable escapement goal. Analyses of available data were inconclusive as to whether the underlying cause of cycles in Kvichak River sockeye production were due to inherent depensatory factors or lack of spawners. The recommended policy included an off-cycle escapement range of 2-10 million sockeye salmon with a minimum goal of 2 million and an exploitation rate of 50% on runs of 4 - 20 million. The point goal for a given off-cycle year would be 50% of the inshore Kvichak run but never less than 2 million or greater than 10 million. A 6 -10 million escapement range was proposed for pre-peak and peak cycle years with a minimum of 6 million and an exploitation rate of 50% on runs of 12 - 20 million. The point goal for a given prepeak or peak cycle year would be 50% of the inshore Kvichak run but never less than 6 million or greater than 10 million. Workshop participants also recommended managing for escapements within the middle of the current escapement goal ranges for Naknek, Egegik, and Ugashik Rivers. The current management objectives or point goals for those rivers are artifacts of past Ricker stock-recruitment models and are no longer supported by the data. Therefore, it was recommended that the management objectives be changed to 1.1 million sockeye salmon for Naknek River, 1.1 million sockeye salmon for Egegik River, and 0.85 million sockeye salmon for Ugashik River. The final recommendation coming out of the workshop was that the sockeye escapement goal range for Togiak River be changed to 100 - 200 thousand sockeye salmon. Available data supported the current management objective of 150 thousand sockeye salmon for Togiak River, but indicated an escapement range of 100 - 200 thousand would on average produce higher yields.