Download or read book Buskin River Sockeye Stock Assessment Operational Plan 2023 written by Kelly M. Krueger and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of this project is to census the sockeye salmon escapement into Buskin Lake during 2023. The age, sex, and length composition of the run (escapement and subsistence harvest combined) to Buskin Lake will also be estimated.

Download or read book Buskin River Sockeye Salmon Stock Assessment Operational Plan 2022 written by Kelly M. Krueger and published by . This book was released on 2022 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of this project is to census the sockeye salmon escapement into Buskin Lake during 2022. The age, sex, and length composition of the run (escapement and subsistence harvest combined) to Buskin Lake will also be estimated.

Download or read book Operational Plan Sockeye Salmon Escapement Studies at the Russian River 2023 2026 written by Jenny L. Gates and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Operational Plan McDonald Lake Sockeye Salmon Stock Assessment 2021 2023 written by Andrew W. Piston and published by . This book was released on 2021 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary purpose of this project is to provide an estimate of the sockeye salmon escapement at McDonald Lake by conducting foot surveys on the spawning grounds at Hatchery Creek. We will also estimate the adult age composition of the escapement. Using results from a Pacific Salmon Treaty genetic stock identification project, we will estimate the contribution of McDonald Lake sockeye salmon to southern Southeast Alaska commercial net fisheries. This project also includes a fall hydroacoustic survey to estimate rearing juvenile sockeye salmon abundance.

Download or read book Afognak Lake Sockeye Salmon Stock Monitoring Project Operational Plan 2023 2025 written by Darin Ruhl and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This operational plan provides the instruction and procedures to properly operate the Afognak Lake adult salmon escapement weir and successfully meet each project objective. The primary function of maintaining a weir at Afognak River is to enumerate sockeye salmon Oncorhynchus nerka returning to Afognak Lake for the Alaska Department of Fish and Game (ADF&G) management of the Afognak Bay commercial, subsistence, and sport fishery. All fish passing upstream or downstream through the weir are identified, enumerated, and reported to the ADF&G office in Kodiak daily. Enumeration at the weir serves a secondary purpose by providing run timing and escapement information for Kodiak Regional Aquaculture Association (KRAA), which uses Afognak Lake sockeye salmon as an early-run brood stock source for various enhancement projects on Kodiak Island. Project activities at Afognak River weir include installation, operation, and maintenance of the weir, salmonid enumeration, record daily physical weather observation, and the collection of age, sex, and length (ASL) samples and corresponding data."--Page 1

Download or read book Operational Plan written by Raymond F. Vinzant and published by . This book was released on 2013 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary purspose of the sockeye slamon assessment project is to provide precise estimates of sockeye salmon total escapement into the Kanalku system, precise estimates of sockeye salmon spawning escapement at Kanalku Lake, and the mortality rate at the Kanalku Falls.

Download or read book Operational Plan written by Holly I. Dickson and published by . This book was released on 2020 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 2020-2024, Chinook salmon (Oncorhynchus tshawytscha) will be enumerated at 2 Anchor River sites from mid-May through early August to monitor escapement for the drainage. The south fork site, located at approximately river kilometer (RKM) 4.0, will be monitored by an Adaptive Resolution Imaging Sonar (ARIS) during high flow periods, and a resistance board weir fitted with underwater video will be used thereafter. The north fork site, located at about RKM 5.3, will be monitored by a resistance board weir with underwater video from the beginning of the Chinook salmon run in early May. Motion-detection technology will be used at each weir to record fish passage 24 hours per day. Weekly beach seine surveys will be used to capture Chinook salmon for age-sex-length (ASL) samples downstream of the confluence of the south and north forks. Chinook salmon data will be used to update estimates of the spawner-recruit relationship and harvest rate, and to provide inseason run information to managers. Coho salmon and steelhead will also be monitored in the fall of each year using the resistance board weir and video system on each fork. Coho salmon age, sex, and length will be collected via beach seining. Coho salmon escapement and harvest rate will be estimated along with an index of steelhead abundance and catch rate.

Download or read book Amendment Ninilchik River Chinook Salmon Stock Assessment and Broodstock Collection 2023 written by Holly I. Dickson and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report amends ROP.SF.2A.2020.04 by extending its primary objectives for an additional year. This project has 2 main goals: 1) assess the status of the Ninilchik River Chinook salmon (Oncorhynchus tshawytscha) stock, and 2) collect Chinook salmon broodstock for supplementation of the Ninilchik River and stocking of terminal saltwater fishery locations in Kachemak Bay. After the escapement goal is reviewed in 2023, Chinook salmon escapement monitoring will transition from the broodstock collection weir at RKM 7.7 to the weir at RKM 4.1. The downstream monitoring location provides full enumeration of wild and hatchery-reared escapements. After paired counts at both weir locations are made, the current SEG, associated with the upper weir, will be updated with reference to the lower weir. The resulting lower-weir goal will better reflect the whole escapement in the Ninilchik River. The complete enumeration of the hatchery-reared run and age sampling will also provide estimates of survival rates of hatchery broods and will provide harvest rates in years when the fishery prohibits retention of wild Chinook salmon. These estimates will help clarify the contribution that hatchery-reared Chinook salmon make to the Ninilchik River sport fishery.

Download or read book Operational Plan written by Nicole L. Zeiser and published by . This book was released on 2020 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Chilkoot Lake sockeye salmon (Oncorhynchus nerka) run, which spawns near Haines, is one of the largest in Southeast Alaska and contributes substantially to harvests in the District 15 commercial drift gillnet fishery in Lynn Canal. This operational plan outlines objectives, methods, and timelines for conducting sockeye salmon stock assessment designed to (1) estimate annual escapement and harvest, (2) provide information for inseason fishery management, and (3) reconstruct runs and assess stock status. The Chilkoot Lake run is managed for a biological escapement goal of 38,000–86,000 fish, which is enumerated through a standard picket weir located just downstream of the lake outlet. Weir counts of sockeye salmon are compared to weekly escapement targets to determine inseason run strength. Genetic mixed stock analysis of weekly sockeye salmon harvests in the District 15 commercial drift gillnet fishery provides stock composition estimates that also guide inseason management of the fishery. Biological sampling, along with escapement enumeration and stock-specific harvest data, allows for total run reconstruction required for escapement goal review.

Download or read book Operational Plan Situk River Chinook Salmon Creel Survey 2023 2024 written by Jason A. Pawluk and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this project is to determine Chinook salmon Oncorhynchus tshawytscha harvest by sport anglers on the Situk River and the age components of that harvest. Additionally, sockeye salmon Oncorhynchus nerka harvest will be determined and various methods of angler use patterns for both species will be recorded. Creel sampling techniques will be used to collect catch, harvest, effort and biological information from the Situk River for this purpose. This information is used to manage for the Chinook salmon biological escapement goal for the Situk River as per the Situk-Ahrnklin and Lost River Chinook salmon Management Plan, along with achieving the Situk River sockeye salmon biological escapement goal. Inriver abundance for both Situk River Chinook and sockeye is obtained from another project with a fish weir, and escapement is calculated by subtracting the above-weir sport harvest estimate of this project from that weir count. Additionally, the Chinook salmon age component information of the harvest gathered here is required for yearly stock assessment models to predict the following years run and set preseason management regulations.

Download or read book Inriver Abundance of Stikine River Sockeye Salmon 2022 2024 written by Kristin Courtney and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 2022 forecast of Stikine River sockeye salmon, Oncorhynchus nerka, run abundance is poor and we anticipate very little harvest opportunity for either U.S. or Canadian fisheries. Since 1994, we have almost exclusively relied on the Canadian lower river commercial fishery to provide the stock-specific information that is used to complete the mixed stock run reconstruction for Stikine River sockeye salmon. It is highly likely there will be little commercial fishing opportunity in 2022 to gather this pertinent information. To obtain stock composition data necessary to estimate the inriver abundance, we will continue to conduct a sockeye salmon stock assessment program at Kakwan Point that began in 2021. The project will be conducted in conjunction with the existing Stikine River Chinook salmon, O. tshwaytscha, stock assessment program, and will extend the project through the end of the sockeye salmon run in mid-August. Tissue samples will be collected from sockeye salmon for genetic mixed stock analysis and for use in a genetic mark–recapture study to estimate inriver abundance based on an expansion of the Tahltan stock that is monitored via weir. We will also gather daily CPUE information, capture and spaghetti tag sockeye salmon, and estimate the age, sex, and length composition for sockeye salmon captured at Kakwan Point.

Download or read book Operational Plan Situk River Steelhead Stock Assessment 2022 2024 written by Jason A. Pawluk and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Steelhead Oncorhynchus mykiss are an important sport fish species in Alaska, and the Situk River hosts the state's largest steelhead sport fishery. The primary purpose of this project is to record abundance and size attributes of steelhead kelts in the Situk River. Observations of abundance and fish size are used to determine if run abundance and size characteristics are changing across time. Decreasing trends in steelhead kelt abundance or size could necessitate changes to sport fishing regulations to help ensure the sustainability of the Situk River steelhead population. Furthermore, kelt abundance in the Situk River is used in combination with other abundance counts of steelhead in Alaska to assess trends, both regionally and statewide, that help sustain all steelhead fisheries in the state. The Situk River weir is also used to gather fish mortalities to obtain matched scale and otolith samples from steelhead for aging verification and archiving. Observations of fishery-related wounds are also recorded to assess potential fishery and predation impacts on steelhead.

Download or read book Stikine River Sockeye Salmon Stock Assessment 2021 written by Julie Bednarski and published by . This book was released on 2021 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 2021 forecast of Stikine River sockeye salmon, Oncorhynchus nerka, run abundance is poor and we anticipate very little harvesting opportunity for either U.S. or Canadian fisheries. Since 1994, we have almost exclusively relied on the Canadian lower river commercial fishery to provide the migratory timing information that is used to complete the mixed stock run reconstruction for Stikine River sockeye salmon. It is highly likely there will be no fishing opportunity in 2021 to gather this pertinent information. To obtain stock composition data necessary to estimate the inriver abundance, we are initiating a sockeye salmon stock assessment program at Kakwan Point. The project will be conducted in conjunction with the existing Stikine River Chinook salmon, O. tshwaytscha, assessment program, and will extend the project through the end of the sockeye salmon run in late August. Tissue samples will be collected from sockeye salmon for genetic mixed stock analysis and for use in a genetic mark–recapture study to estimate inriver abundance based on an expansion of the Tahltan stock that is monitored via weir. We will also gather daily catch per unit effort (CPUE) information and estimate the age, sex and length (ASL) composition for sockeye salmon captured. This stock assessment program is designed to capture sockeye salmon in proportion to abundance during immigration; therefore, it is expected that it will provide an unbiased estimate of abundance. This estimate will be assessed by TTC postseason for use in the Stikine River sockeye salmon run reconstruction.

Download or read book Juvenile Abundance and Harvest of Chilkat River Chinook and Coho Salmon 2022 2023 written by Brian W. Elliott and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: An ongoing coded wire tag project, used as part of a stock assessment program for Chilkat River Chinook salmon Oncorhynchus tshawytscha and coho salmon O. kisutch, will be conducted during fall 2022 and spring 2023 to provide estimates of smolt abundance and marine harvest for Chinook and coho salmon. This project uses modified Peterson 2-event mark–recapture methods to estimate smolt abundance, and port sampling of coded wire tags in mixed stock commercial and sport fisheries to estimate marine harvest for both species. Juvenile salmon will be measured for length and weight, marked with adipose fin clips, and tagged with coded wire tags in fall 2022 (juvenile Chinook salmon) and spring 2023 (Chinook and coho salmon smolt) as event 1 of the mark–recapture study. During event 2, adult Chinook salmon will be sampled for missing adipose fins, coded wire tags, age, sex, and length in Chilkat River fishwheels and drift gillnets, which are operated in the lower Chilkat River as part of a separate adult mark–recapture project. Adult Chinook salmon will be also sampled for missing adipose fins, coded wire tags, and age, sex, and length during Chilkat River drainage spawning grounds surveys to complete event 2 sampling. Coho salmon will also be sampled as adults during event 2 in the lower Chilkat River fishwheels. Age composition of Chinook salmon adults will be estimated by scale ageing techniques; age composition of coho salmon smolt and adults will also be estimated. The Alaska Department of Fish and Game uses these data to make local and regional management decisions. Chilkat River Chinook salmon is a Pacific Salmon Commission exploitation rate and escapement indicator stock and has recently been added to the base model of abundance indicator stocks for the Chinook Technical Committee, which influences coastwide management.

Download or read book Operational Plan Jim Creek Coho Salmon Escapement 2023 2027 written by Daryl Lescanec and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This project will enumerate coho salmon (Oncorhynchus kisutch) and other fish passage at a floating resistance-board weir in the Jim Creek drainage during 2023–2027. The number of adult coho and sockeye salmon that pass through the weir from 20 July to 30 September will be counted and estimates of sex composition for adult coho salmon and age and sex composition of adult sockeye salmon will be made for both years.

Download or read book Operational Plan Monitoring the Chinook Salmon Sport Fishery on the Nushagak River Drainage 2023 written by Lee K. Borden and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This project surveys the Chinook salmon sport fishery on the Nushagak River. Information will be collected on angler-days of effort by type of angler (guided vs. unguided) and gear (bait or no bait), catch and harvest rates of Chinook salmon, as well as age, sex, length, weight, and genetics of Chinook salmon in the sport harvest. Data will be reported to fisheries managers in Dillingham daily, providing real-time information regarding sport fishing success as well as the composition of the harvest. Data collected from onsite surveys will be used to document use patterns and design regulations that will accommodate growth of the sport fishery and maintain angling opportunity. Results will also guide review of current regulations and will be used to assess the effectiveness of current regulations in maintaining compliance with the management plan.

Download or read book Stock Assessment of Sockeye Salmon of the Buskin River 2000 2003 written by Julia S. Schmidt and published by . This book was released on 2005 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: