Download or read book Investigations of Life History and Fishery for Tanner Crab Chionoecetes Bairdi in the Westward Region Alaska 1982 written by William A. Colgate and published by . This book was released on 1983 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigations of Life History and Fishery for Tanner Crab Chionoecetes Bairdi in the Westward Region Alaska 1983 written by William A. Colgate and published by . This book was released on 1985 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigations of Life History and Fishery for Tanner Crab Chionoecetes Bairdi in Alaska written by William A. Colgate and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Bibliography of References on the Genus Chionoecetes written by and published by . This book was released on 1984 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Alaska Habitat Management Guide written by and published by . This book was released on 1985 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Research on Snow Crab Chionoecetes Opilio written by A. J. Paul and published by . This book was released on 2000 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This bibliography of 1,050 entries brings together research on snow crab published in Japan, Russia, Canada, the United States, and other countries" -- preface.
Download or read book Report of Meeting International North Pacific Fisheries Commission written by International North Pacific Fisheries Commission and published by . This book was released on 1981 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Alaska Fishery Research Bulletin written by and published by . This book was released on 1998 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Annual Report International North Pacific Fisheries Commission written by International North Pacific Fisheries Commission and published by . This book was released on 1982 with total page 686 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 1981 Westward Region Tanner Crab Population Surveys written by William A. Colgate and published by . This book was released on 1981 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Alaska Tanner Crab Chionoecetes Bairdi Investigations written by William E. Donaldson and published by . This book was released on 1980 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biology of the Tanner Crab Chionoecetes Bairdi in Alaska 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 Outer Continental Shelf Environmental Assessment Program written by and published by . This book was released on 1986 with total page 904 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Report to Industry 1984 Westward Region Tanner Crab Chionoecetes Bairdi Population Index Surveys written by William A. Colgate and published by . This book was released on 1984 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Kodiak Alaska Tanner Crab Chionoecetes Bairdi Research written by William E. Donaldson and published by . This book was released on 1977 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the North Pacific Symposium on Invertebrate Stock Assessment and Management written by National Research Council Canada and published by NRC Research Press. This book was released on 1998 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of a symposium that focused on new, innovative evaluation of the implications and needs for changing management approaches and demands in invertebrate fishery science. Species covered in the presentations include crustaceans, gastropods, echinoderms, and bivalves. Presentations are organized in the following subject areas: assessment of abundance and related parameters; growth, mortality, and yield per recruit; spatial pattern and its implications; the fishing process; population dynamics; the fishery as a selective force; invertebrate fisheries management; and regional perspectives from the north Pacific. The proceedings conclude with a symposium overview.
Download or read book Historical Abundances of Tanner Crab Chionoecetes Bairdi for Kodiak Chignik South Peninsula and Eastern Aleutian Districts from Standardized Large mesh Trawl Surveys 1988 2021 written by Kally Spalinger and published by . This book was released on 2022 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Alaska Department of Fish and Game (ADF&G) is updating long-term average abundance indices of mature male Tanner crab Chionoecetes bairdi used to determine regulatory fishery thresholds in the Kodiak, Chignik, South Peninsula, and Eastern Aleutian Districts. Since 1988, trawl survey area-swept abundance estimates have been determined annually, using the same vessel and net configuration. Initial thresholds were established in 1999, when only 11 years of consistent trawl survey estimates were available. To provide for a longer time series, 4 different methods were used to reconstruct historical male abundances from 1973–1998. The trawl survey has been conducted annually since then, adding an additional 23 years of estimates to the survey time series. Trawl survey stations have been added, removed, modified, and in some years a station may not have been sampled due to unforeseen circumstances, leading to total abundance estimates based on different background information. To develop a single source of comparable abundance estimates, stations and station areas used for area-swept estimates have been standardized from 1988–2021. For each district or section standard stations were assigned to a high or low CPUE (number of crab caught per kilometer towed) stratum. Estimated abundance of each stratum was calculated by applying the mean CPUE of sampled stations, weighted by station size, to the overall area of the stratum. Strata abundances were summed by district or section. This allows the entire area of the survey to be considered, even when a station was not sampled. There are currently 34 years of consistent, standardized trawl survey data that contribute to understanding the productivity of these stocks. Annual area-swept abundance estimates of mature male and female Tanner crab abundance show substantial fluctuations of over 10 million crab within a 3-year period. Long-term (1988–2021) average abundance indices of mature males were determined and compared to previous long-term average abundance indices in use through 2022. Of the 12 management units considered, the mature male long-term average increased in 4 management units and decreased in 8. Long-term average abundance indices of mature females were also determined using the standardized 1988–2021 data. However, no comparisons to previous averages were made because the population reconstruction done in 1999 did not consider females.
