Download or read book Prince William Sound Tanner Crab Commercial Fishery Harvest Strategy Recommendations and Proposed Assessment 2022 written by Wyatt J. Rhea-Fournier and published by . This book was released on 2021 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Alaska Department of Fish and Game (ADF&G) has developed a Tanner crab Chionoecetes bairdi commercial fishery harvest strategy recommendation with an associated trawl survey assessment for the Prince William Sound Area (PWSA). Methods for developing this harvest strategy follow the approach in the Registration Area E Tanner crab harvest strategy, and methods for developing the survey assessment follow the approach for the historical ADF&G PWSA large-mesh bottom trawl survey. New areas have been proposed and defined within the PWSA with minimum abundance thresholds to open a commercial fishery and harvest rates specific to each area. A bottom trawl survey has been designed for each of the areas to estimate the abundance of Tanner crab and assess if the minimum abundance threshold has been met. Trawl surveys have been completed in 2 of the areas occurring in 2020 and 2021 with results indicating that the abundance estimate does not meet the minimum abundance threshold to open a commercial fishery for Tanner crab in those 2 areas. These recommendations will provide the basis for ADF&G proposals to be submitted at the November 2021 Alaska Board of Fisheries meeting and will inform commercial fishery management decisions in 2022.

Download or read book Addendum to SP21 11 Tanner Crab Commercial Fishery Harvest Strategy in Prince William Sound 2022 written by Wyatt J. Rhea-Fournier 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 the previous, proposed, and amended Prince William Sound Tanner crab Chionoecetes bairdi harvest strategies, defines how minimum abundance thresholds were calculated for new management districts, and describes the bottom trawl surveys that will be used to inform the harvest strategy. The Alaska Department of Fish and Game (ADF&G) submitted a proposal to redefine and rename 5 Tanner crab commercial fishery districts in the Prince William Sound Area (PWSA; Registration Area E) that was adopted into regulation at the November/December 2021 Alaska Board of Fisheries (BOF) meeting. ADF&G also submitted a proposal for a new Tanner crab harvest strategy for 3 of the new districts in PWSA following staff recommendations that were published prior to the 2021 BOF meeting (Rhea-Fournier et al. 2021). The proposed harvest strategy was amended during the meeting after discussions among ADF&G staff, BOF members, and fishery stakeholders before being adopted into regulation. The amended harvest strategy includes minimum abundance thresholds to open a fishery in 3 of the 5 new Tanner crab commercial fishery districts and follows the approach in the original Registration Area E Tanner crab harvest strategy adopted at the 2017 BOF meeting that utilizes commercial harvest and ADF&G bottom trawl survey information. Three significant modifications were made to the original ADF&G harvest strategy proposal, including shortening the time series of annual abundance used to develop a proxy for maximum sustainable yield from 1977–2015 to 1982–2015. The size class of crab for the time series of annual abundance was reduced from the historical legal size to the mature size of male Tanner crab. Finally, the stepwise harvest rates were adjusted to mature-size male crab considering the new approach and a maximum harvest rate on legal-size crab was established for 3 of the 5 new Tanner crab commercial fishery districts.

Download or read book Bottom Trawl Surveys for Tanner Crab in Lower Cook Inlet and Prince William Sound 1990 2015 with Harvest Strategy Recommendations for Prince William Sound written by Kenneth James Goldman and published by . This book was released on 2018 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes bottom trawl survey data used to assess Tanner crab Chionoecetes bairdi abundance within the Alaska Department of Fish and Game's Central Region. Trawl surveys replaced pot surveys as the primary method of assessing Tanner crab in Central Region in the early 1990s. Data for the Central Region were collected from 2 management districts in the Lower Cook Inlet Management Area: 1) the Southern District (1990-2013), and 2) the Kamishak Bay and Barren Islands Districts (1990-2012). Data were also collected from the Prince William Sound Management Area (1991-2015). Since 1993 in the Southern District, and 1990 in the Kamishak Bay and Barren Islands Districts, the estimated abundance of legal male Tanner crab has not exceeded the minimum stock size threshold defined in regulation that is necessary to open a commercial fishery (Alaska Administrative Code 5 AAC 35.408). Bottom trawl survey methods have changed through the history of the survey and those changes are documented in this report. Abundance trends of legal and sublegal male and female Tanner crab are also described along with trends in recruitment. Analysis and harvest strategy recommendations to create a management plan for commercial and noncommercial Tanner crab fisheries in the Prince William Sound Management Area are presented.

Download or read book Commercial Tanner Crab Fishery Fisheries Management Plan FMP Amended to Include Amendment 7 written by and published by . This book was released on 1981 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Tanner Crab Off Alaska Fisheries Management Plan FMP written by and published by . This book was released on 1977 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book 2021 Southeast Alaska Tanner Crab Stock Health Assessment and Management Plan for the 2022 Season written by Katie J. Palof and published by . This book was released on 2022 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report provides an assessment of the 2021 Southeast Alaska Tanner crab stock health and an overview of harvest strategy and regulations for the 2022 (Chionoecetes bairdi) commercial fisheries season. The 2021 stock assessment survey estimate of mature male biomass for the 2022 fishery is 5.81 million lb, exceeding the upper regulatory threshold of 5.5 million lb. The 2021 commercial fishery opened on February 11 with 5,120 pots registered that allowed for 7 days of fishing in core areas, 12 days in non-core areas, and 26 days in exploratory areas for the season.

Download or read book Recommended Harvest Strategy for Bering Sea Tanner Crab written by Benjamin Daly and published by . This book was released on 2020 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Alaska Department of Fish and Game (ADF&G) harvest strategy for Bering Sea Tanner crab has evolved over the past 40 years in response to fluctuations in biomass, advancements in understanding of Tanner crab biology, and continued improvements in assessment modelling approaches. Although the intent of all harvest strategy changes was to improve the stability of this fishery and minimize closures, this fishery has been closed 5 out of the last 10 seasons and currently has the most complicated strategy of all the Bering Sea Aleutian Islands (BSAI) crab stocks. In collaboration among ADF&G, the University of Washington, the National Oceanic and Atmospheric Administration (NOAA), and the commercial crab industry, we take a holistic approach using the most current scientific methods to evaluate and advance a new harvest strategy that explicitly incorporates conservation and economic goals. Specifically, we used a Management Strategy Evaluation (MSE) via 100-year forecast simulations to examine the ability of 15 harvest strategies to provide sustainable harvest. Additionally, we recomputed historical total allowable catches (TACs) to further understand harvest strategy performance using “real” data (i.e., not simulated data in the MSE forecast simulations). Of the 15 strategies, 7 were discarded due to conservation concerns (e.g., high probability of total fishery mortality exceeding federal overfishing limits), and two were discarded due to economic concerns (e.g., low projected catch). Because male-only policies ignore the contribution of females to the reproductive potential of the population, we focused our recommendation on polices that include consideration of mature female biomass. Of those 4 remaining policies, we recommend a harvest policy that includes a threshold for opening the fishery of 25% of the long-term (1982-2018) average of mature male biomass, a minimum (5% or 10%) and 20% maximum exploitation rate on mature male biomass adjusted for relative mature female biomass, and a 50% maximum exploitation rate on exploitable, industry-preferred size legal male abundance. Our analysis suggests these policies balance the tradeoff between conservation and economic considerations.

Download or read book Prince William Sound Commissioner s Permit Tanner Crab Fishery 2018 2021 written by Jan Rumble and published by . This book was released on 2021 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: This management report summarizes Tanner crab Chionoecetes bairdi harvest, effort, and location information from the Prince William Sound (Registration Area E) Commissioner’s Permit Tanner crab fishery (CPF) 2018–2021 prosecuted in the Eastern and Western Districts. In 2018, the first year of the CPF, harvest was 83,338 pounds and 47,394 crab by 14 vessels and 3,736 pot lifts; the overall fishery catch per unit effort (CPUE) was 12.7 crab per pot. In 2019, CPF harvest peaked at 124,707 pounds and 74,407 crab by 14 vessels and 4,841 pot lifts; the fishery CPUE was 15.4 crab per pot. The overall CPF effort represented by the number of vessels and pot lifts was highest in 2020 at 22 vessels and 5,885 pot lifts. However, CPF harvest in 2020 decreased to 108,859 pounds, 64,557 crab, and a fishery CPUE of 11.0 crab per pot, which was the lowest CPUE for the fishery. In 2021, the CPF harvest and effort dropped to the lowest levels at 56,351 pounds, 33,803 crab by 10 vessels, and 2,923 pot lifts, but the fishery CPUE of 11.6 crab per pot was higher than in 2020. A Tanner crab test fishery was conducted in the Northern and Hinchinbrook Districts in 2020 and 2021 with defined fishing areas (lots) and a maximum of 5,000 pounds available per lot. In 2020, there were 6 lots available, and in 2021 there were 5 lots available for bid. In 2020, 5 vessels participated and harvested 23,771 pounds and 12,917 crab in 796 pot lifts for an overall CPUE of 16.2 crab per pot. In 2021, 2 vessels participated in the test fishery and harvested 15,910 pounds and 8,368 crab in 552 pot lifts for an overall CPUE of 15.2 crab per pot.

Download or read book Fishery Management Plan and Environmental Impact Statement for the Tanner Crab Off Alaska written by North Pacific Fishery Management Council and published by . This book was released on 1977 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Updated Tanner Crab Harvest Strategies for Kodiak Chignik and South Peninsula Districts written by Kally Spalinger and published by . This book was released on 2021 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Alaska Department of Fish and Game (ADF&G) recommends updating harvest strategies for the Tanner crab Chionoecetes bairdi fisheries in the Kodiak, Chignik and South Peninsula Districts. Proposed harvest strategies will update minimum regulatory thresholds used to determine fishery openings and use similar framework and rationale to the harvest strategy recently adopted for Bering Sea Tanner crab. The proposed harvest strategies account for fluctuations in both mature male and female abundance and produce guideline harvest levels (GHLs) in line with historical management practices.

Download or read book A Bottom Trawl Survey for Tanner Crab in Prince William Sound 2021 written by Wyatt J. Rhea-Fournier and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A large-mesh bottom trawl survey of Tanner crab Chionoecetes bairdi was conducted in 2021 in the Prince William Sound Area (PWSA; Registration Area E) with the objective of establishing protocols for generating Tanner crab abundance estimates for a newly established survey area. New survey areas in PWSA were developed to assess new commercial fishery districts that were proposed at the 2021 Alaska Board of Fisheries meeting. Proposed fishery districts encompass historical fishing areas and areas fished in the recent Commissioner's permit fishery. Methodology from the historical PWSA trawl survey was applied to develop new trawl stations with the goal of calculating catch per unit effort (CPUE) to estimate abundance of historical legal-size and legal-size male Tanner crab in the surveyed area. The 2021 survey produced a CPUE for male Tanner crab that were of the historical legal size of 11.6 crab per nmi2 and was the lowest observation for any Alaska Department of Fish and Game trawl survey in the PWSA. The estimated abundance of historical legal-size male Tanner crab was 6,242 crab in the survey area, and the estimated abundance for current legal-size male Tanner crab was 40,289 crab in the survey area.

Download or read book A Bottom Trawl Survey for Tanner Crab in Prince William Sound 2020 written by Wyatt J. Rhea-Fournier and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A large-mesh bottom trawl survey of Tanner crab Chionoecetes bairdi was conducted in 2020 in the Prince William Sound Area (PWSA; Registration Area E) with the objective of establishing protocols for generating Tanner crab abundance estimates for a newly established survey area. New survey areas in PWSA were developed to assess new commercial fishery districts that were proposed at the 2021 Alaska Board of Fisheries meeting. Proposed fishery districts encompass historical fishing areas and areas fished in the recent commissioner’s permit fishery. Methodology from the historical PWSA trawl survey was applied to develop new trawl stations with the goal of calculating catch per unit effort (CPUE) to estimate abundance of historical legal size and legal-size male Tanner crab in the surveyed area. The 2020 survey produced a CPUE for male Tanner crab that were of the historical legal size of 28.4 crab per nmi2, which was the third lowest observation for any Alaska Department of Fish and Game trawl survey in the PWSA. The estimated abundance of historical legal-size male Tanner crab was 8,214 crab in the survey area, and the estimated abundance for legal-size male Tanner crab was 35,920 crab in the survey area.

Download or read book Review of the King and Tanner Crab Fisheries in Prince William Sound written by Robert S. Berceli and published by . This book was released on 2002 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Tanner Crab Harvest Strategy for Kodiak Chignik and the South Peninsula Districts written by Daniel Urban and published by . This book was released on 1999 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fishery Management Plan for the Commercial Tanner Crab Fishery in the South Peninsula District of Registration Area J 2011 written by Mark A. Stichert and published by . This book was released on 2010 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document provides an overview of the South Peninsula District Tanner crab fishery harvest strategy and summarizes regulations governing gear specifications, pot storage, landing requirements, fishing hours, tank inspection, and inseason reporting. Fishermen are encouraged to use this document as a supplement to the 2008-2011 Commercial king and tanner crab fishing regulation booklet to understand the regulations for this fishery.

Download or read book Fishery Management Plan for the Commercial Tanner Crab Fishery in the South Peninsula District 2012 written by Mark A. Stichert and published by . This book was released on 2011 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document provides an overview of the South Peninsula District Tanner crab fishery harvest strategy and summarizes regulations governing gear specifications, pot storage, landing requirements, fishing hours, tank inspection, and inseason reporting. Fishermen are encouraged to use this document as a supplement to the 2011-2012 Commercial King and Tanner Crab Fishing Regulation booklet to understand the regulations for this fishery.

Download or read book Overview of Proposed Harvest Strategy and Minimum Size Limits for Bering Sea District Tanner Crab written by Jie Zheng and published by . This book was released on 2011 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report provides an overview of spatial and temporal trends in size at maturity of male and female Tanner crab in the Bering Sea and reviews their fishery management implications in the context of the terminal molt to maturity.