EBookClubs

Read Books & Download eBooks Full Online

EBookClubs

Read Books & Download eBooks Full Online

Book Annual Report

Download or read book Annual Report written by Pacific Salmon Commission and published by . This book was released on 1995 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Fall Chinook Oncorhynchus Tshawytscha

Download or read book Fall Chinook Oncorhynchus Tshawytscha written by Jim Waldvogel and published by . This book was released on 2006 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: Age analysis for 22 years (1980 excluded) showed that the overall percentages for female spawners was 53% (4-year olds), 38% (3-year olds), and 9% (5-year olds). The age composition of male spawners showed a high degree of variability throughout the study. Male chinook of age 2, 3 and 4 were dominant annually, but 5- and 6- year old fish were present in most spawning seasons. All chinook carcasses from which scales were collected were also measured for length (over 120 samples in 22 years). Decreases in mean length were documented for all age classes for each of the El Nino episodes that occurred during the study (1982-1984; 1992-1993; 1997-1998). The decreases in mean length appeared to carry forward for each cohort's age class. The total number of chinook redds was tabulated by counting "fresh" redds during weekly spawning surveys. The mean number of redds was 117 for the 23-year period with a mean of 0.9 redds per adult salmon or 1.8 redds per female.

Book Pacific Salmon Commission Run size Estimation Procedures

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.

Book Estimated Abundance of Chinook Salmon Returning to the Nass River B C 1997 microform

Download or read book Estimated Abundance of Chinook Salmon Returning to the Nass River B C 1997 microform written by Canada. Department of Fisheries and Oceans. Science and published by Prince Rupert, B.C.: Fisheries and Oceans Canada. This book was released on 1999 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Spawning Abundance of Chinook Salmon in the Taku River in 2003

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

Book Ecological Studies of Sockeye Salmon and Related Limnological and Climatological Investigations Brooks Lane Alaska 1957

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.

Book History of the Fishery and Summary Statistics of the Sockeye Salmon Oncorhynchus Nerka Runs to the Chignik Lakes Alaska 1888 1966

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:

Book Investigations Concerning the Red salmon Runs to the Karluk River Alaska

Download or read book Investigations Concerning the Red salmon Runs to the Karluk River Alaska written by Charles Henry Gilbert and published by . This book was released on 1927 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Preliminary Forecasts and Projections for 1988 Alaska Salmon Fisheries

Download or read book Preliminary Forecasts and Projections for 1988 Alaska Salmon Fisheries written by Douglas Murrell Eggers and published by . This book was released on 1988 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Review of 1998 Terminal Run of Somass River Chinook Salmon 1998 WCVI Extensive Escapement Indicators and Somass Terminal Run Forecast for 1999

Download or read book Review of 1998 Terminal Run of Somass River Chinook Salmon 1998 WCVI Extensive Escapement Indicators and Somass Terminal Run Forecast for 1999 written by B. Riddell and published by . This book was released on 1999 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Fisheries Pacific Salmon

Download or read book Fisheries Pacific Salmon written by Canada and published by . This book was released on 1993 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Fixed aspect Hydroacoustic Estimation of Fraser River Sockeye Salmon Abundance and Distribution at Mission B C in 1986

Download or read book Fixed aspect Hydroacoustic Estimation of Fraser River Sockeye Salmon Abundance and Distribution at Mission B C in 1986 written by David Alan Levy and published by . This book was released on 1991 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: