Download or read book The Bering Sea Ecosystem written by National Research Council and published by National Academies Press. This book was released on 1996-05-08 with total page 317 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Bering Sea, which lies between the United States and Russia, is one of the most productive ecosystems in the world and has prolific fishing grounds. Yet there have been significant unexplained population fluctuations in marine mammals and birds in the region. The book examines the Bering Sea ecosystem's dynamics and the relationship between man and the ecosystem, in order to identify potential reasons for the population fluctuations as well as identify ways the Sea's living resources can be better managed by government.
Download or read book Trawling in the Mist written by Alexey Vaisman and published by Traffic International. This book was released on 2001 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the findings of the study on industrial fisheries in the Russian part of the Bering Sea region, with a focus on activities off the Kamchatka peninsula. The study reveals that Kamchatka's fishing sector is in a crisis situation characterised by a sharp drop in production potential, and a deteriorating financial return that encourages the illegal harvesting of marine biological resources. Based on the findings of this study, strategies and recommendations to address unsustainable and illegal harvest and trade in marine resources were developed.
Download or read book Salmon Ranching written by John E. Thorpe and published by . This book was released on 1980 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Northern Fur Seal written by Ralph C. Baker and published by . This book was released on 1970 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Booklet describing early history of fur sealing; the distribution and movement of northern fur seals; Callorhinus Ursinus, their food, physical characteristics, reproduction and mortality and disease, management and research; sealing on the Pribilof Islands and processing and sale of fur seal skins.
Download or read book Ecological Studies of Sockeye Salmon and Related Limnological and Climatological Investigations Brooks Lane Alaska 1957 written by Theodore R. Merrell and published by . This book was released on 1964 with total page 814 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ecological studies on the fresh-water phases of the life history of sockeye salmon and studies on related limnology and climatology were made at Brooks Lake, Alaska, in 1957. Data are presented and interpreted on adult sockeye salmon spawning distributions and behavior, age, sex, length, fecundity, and bear predation; on juvenile sockeye salmon ages, food, growth, migration from the lake, relative abundance, and distribution in the lake; and on climatological and limnological factors that may influence sockeye salmon behavior and abundance.
Download or read book Pacific Salmon Commission Run size Estimation Procedures written by Pacific Salmon Commission and published by Vancouver, B.C. : The Commission. This book was released on 1995 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the analysis of data relevant to the 1994 shortfall of late-run sockeye escapements. We provide an assessment of the problem in terms of the essential elements that led to the error in estimation. As well, we attach appendices which contain detailed analyses of the possible impact that various factors may have had on the estimation process.
Download or read book History of the Fishery and Summary Statistics of the Sockeye Salmon Oncorhynchus Nerka Runs to the Chignik Lakes Alaska 1888 1966 written by Michael L. Dahlberg and published by . This book was released on 1979 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Habitat based Assessment of Coho Salmon Production Potential and Spawner Escapement Needs for Oregon Coastal Streams written by Thomas E. Nickelson and published by . This book was released on 1998 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spawning Escapement of Okanogan River Blueback Salmon Oncorhynchus Nerka 1957 written by Donovan R. Craddock and published by . This book was released on 1958 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book FY 2001 Study Status Report 1 Sept 2001 Escapement Estimates for Lake Clark Sockeye Salmon written by Carol Ann Woody and published by . This book was released on 2001 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A History of Sockeye Salmon Research Karluk River System Alaska 1880 2010 written by Richard Gard and published by . This book was released on 2014 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spawning Abundance of Chinook Salmon in the Taku River in 2003 written by and published by . This book was released on 2006 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: A cooperative study involving the Department of Fisheries and Oceans Canada, the Alaska Department of Fish and Game, and the Taku River Tlingit First Nation was conducted to estimate the number of spawning Chinook salmon Oncorhynchus tshawytscha in the Taku River in 2003 with a mark-recapture experiment. Fish were captured at Canyon Island on the lower Taku River with fish wheels from May through August and were individually marked with back-sewn, solid-core spaghetti tags. All tagged fish were also batch marked with an opercle punch plus removal of the left axillary appendage. Sampling on the spawning grounds in tributaries was used to estimate the fraction of the population that had been marked. The estimated spawning abundance of small Chinook salmon ( 400 mm long; mid-eye to fork of tail) was 3,489 (SE = 1,052). Spawning abundance of medium-size Chinook salmon (401-659 mm) was estimated to be 16,780 (SE = 2,274). Finally, spawning abundance of large-size fish (= 660 mm) was estimated to be 36,435 (SE = 6,705), and the estimated total of all fish was 56,704 (SE = 7,158). The sum of the peak aerial survey counts of large spawning Chinook salmon conducted at five index tributaries of the Taku River was 16% of the mark-recapture estimate. Age 1.3 fish (1998 brood year) constituted an estimated 40% of the spawning population, followed by age 1.2 fish (1999 brood year), which constituted an estimated 29% of the population
Download or read book Birectilinear Recruitment Curves to Assess Influence of Lake Size on Survival of Sockeye Salmon written by Ralph Parks Silliman and published by . This book was released on 1970 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Abundance of the Sockeye Salmon Escapement in the Alsek River Drainage 2004 written by and published by . This book was released on 2005 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Etiology of Sockeye Salmon virus Disease written by Raymond W. Guenther and published by . This book was released on 1959 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ninety Years of Salmon Culture at Little White Salmon National Fish Hatchery written by William R. Nelson and published by . This book was released on 1990 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Status of Columbia River Blueback Salmon Runs 1951 written by Harold A. Gangmark and published by . This book was released on 1952 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
