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Author: Edward O. Otis Publisher: ISBN: Category : Escapement (Fisheries) Languages : en Pages : 116
Book Description
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, follow appropriate principles and criteria in the Policy for the Management of Sustainable Salmon Fisheries, and achieve spawning escapement goals. 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. 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. 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.
Author: Edward O. Otis Publisher: ISBN: Category : Escapement (Fisheries) Languages : en Pages : 116
Book Description
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, follow appropriate principles and criteria in the Policy for the Management of Sustainable Salmon Fisheries, and achieve spawning escapement goals. 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. 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. 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.
Author: Edward O. Otis Publisher: ISBN: Category : Escapement (Fisheries) Languages : en Pages : 0
Book Description
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: Edward O. Otis Publisher: ISBN: Category : Aerial surveys Languages : en Pages : 40
Book Description
To facilitate informed inseason management of commercial fisheries targeting Pacific salmon Oncorhynchus spp., the Alaska Department of Fish and Game (ADF&G) uses aerial and ground survey methods to monitor escapement on select index streams in Lower Cook Inlet (LCI). Surveyors make periodic counts of sockeye O. nerka, chum O. keta, and pink O. gorbuscha salmon throughout the duration of their respective runs. Fishery managers use these data daily to manipulate time and area fishery openings/closures in an effort to assure that the final escapement level for monitored stocks falls within their individual escapement goal ranges. At the end of the season, periodic aerial and ground survey counts are used to calculate a final escapement index for each stream based on the area-under-the-curve method (pink and chum salmon) or the peak survey count (sockeye salmon). This report provides operational guidelines for aerial and ground survey-based monitoring of salmon escapements in LCI.
Author: Tim Blackmon Publisher: ISBN: Category : Escapement (Fisheries) Languages : en Pages : 0
Book Description
From June 8 through October 13, 2022, Alaska Department of Fish and Game staff operated an autonomous video counting tower (AVCT) immediately below the outlet of Red Lake within the Southern District of the Lower Cook Inlet Management Area (LCIMA). The AVCT was programmed to record high-resolution time-lapse video during daylight hours to provide information on the run-timing and magnitude of Pacific salmon (Oncorhynchus spp.) escapements into Red Lake. This project was a component of the Alaska Energy Authority’s preliminary assessment of fishery resources in the Martin River drainage, which is under consideration for future hydroelectric power development. Sockeye salmon (O. nerka), coho salmon (O. kisutch), pink salmon (O. gorbuscha), and Dolly Varden (Salvelinus malma) were captured on video migrating upstream to Red Lake in 2022. Additionally, juvenile coho salmon were collected from the lake shoreline during a spring sampling trip. The AVCT operated without interruption and documented 681 sockeye salmon with the peak daily count occurring on June 21. Peak run timing for coho salmon occurred on October 10 with a total observed escapement of 48. The AVCT documented 5 pink salmon and 53 Dolly Varden, as well as a variety of wildlife.
Author: Adam St. Saviour Publisher: ISBN: Category : Fishing surveys Languages : en Pages : 0
Book Description
The goals of this study are to estimate the participation and harvest of 5 personal use salmon fisheries that occur in Upper Cook Inlet. Harvests of sockeye (Oncorhynchus nerka) and Chinook (O. tshawytscha) salmon will be estimated from the Kasilof gillnet fishery; harvests of sockeye, coho (O. kisutch), and pink (O. gorbuscha) salmon will be estimated from the Kasilof dipnet fishery; harvests of sockeye, Chinook, coho, and pink salmon will be estimated from the Kenai dipnet fishery; and harvest of sockeye and coho salmon will be estimated from the Fish Creek and Susitna River dipnet fisheries. Incidental harvest of flounder will also be estimated for all for fisheries.
Author: Charles W. Russell Publisher: ISBN: Category : Chum salmon Languages : en Pages : 29
Book Description
To facilitate informed inseason management of commercial fisheries targeting pink Oncorhynchus gorbusha, and chum salmon O. keta the Alaska Department of Fish and Game, Division of Commercial Fisheries, uses aerial surveys to monitor escapement on select index streams in Prince William Sound (PWS). Surveyors make weekly counts of pink and chum salmon throughout the duration of the runs. Fishery managers use these data daily to manipulate time and area of fisheries openings to ensure sustainable escapement levels and follow appropriate principles and criteria in the Policy for the Management of Mixed Stock Salmon Fisheries (5 AAC 39.220), 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). Post-season, weekly survey counts of index streams are used to calculate a final escapement index for each district-specific escapement goal based on area-under-the curve methods and stream-specific estimates of stream life. This report provides operational guidelines for aerial monitoring of pink and chum salmon escapements in PWS.
Author: Brittany Blain-Roth Publisher: ISBN: Category : Chinook salmon Languages : en Pages : 130
Book Description
This operational plan details the qualitative evaluation of Chinook and coho salmon stocks in selected drainages within the Anchorage Management Area. The numbers of Chinook salmon and coho salmon will be counted in 5 different drainages by foot and float surveys. The numbers of other salmon species will be recorded as well. Data from these surveys will be used to manage the Chinook and coho salmon sport fisheries in the Anchorage Management Area.
Author: Samantha Oslund Publisher: ISBN: Category : Chinook salmon Languages : en Pages : 0
Book Description
Aerial index counts from 22 NCIMA Chinook salmon streams are used detect trends in escapement for various NCIMA stocks and are used to assist fisheries managers with future management and refinement of escapement goals for streams and stocks. The objectives of this project are to count the number of Chinook salmon in each of 22 selected NCIMA area streams during 1 annual survey of each stream between 15 July and 7 August in 2021 through 2025, and to count the number of coho salmon in each of 8 selected NCIMA area streams during 1 annual survey of each stream between 20 September and 4 October in 2021 through 2025. Surveys may be limited by budgetary constraints and priority will be given to streams and stocks with escapement goals.
Author: Sven Sebastian Uhlmann Publisher: Springer ISBN: 3030033082 Category : Science Languages : en Pages : 438
Book Description
This open access book provides a comprehensive examination of the European Landing Obligation policy from many relevant perspectives. It includes evaluations of its impacts at economical, socio-cultural, ecological and institutional levels. It also discusses the feasibility and benefits of several potential mitigation strategies. The book was timely published, exactly at the time where the Landing Obligation was planned to be fully implemented. This book is of significant interest to all stakeholders involved, but also to the general public of Europe and to other jurisdictions throughout the world that are also searching for ways to deal with by-catch and discard issues.
Author: Edward O. Otis
Author: Edward O. Otis
Author: Edward O. Otis
Author: Edward O. Otis
Author: Tim Blackmon
Author: Adam St. Saviour
Author: Charles W. Russell
Author: Brittany Blain-Roth
Author: Samantha Oslund
Author: Sven Sebastian Uhlmann
Author: California. Dept. of Water Resources