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Mark Recapture Studies Of Taku River Adult Sockeye Salmon Stocks
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Book Synopsis Mark-recapture Studies of Taku River Adult Sockeye Salmon Stocks by :
Download or read book Mark-recapture Studies of Taku River Adult Sockeye Salmon Stocks written by and published by . This book was released on 2007 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mark-recapture Studies of Taku River Adult Sockeye Salmon Stocks in 2003 by : I. Boyce
Download or read book Mark-recapture Studies of Taku River Adult Sockeye Salmon Stocks in 2003 written by I. Boyce and published by . This book was released on 2005 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mark-recapture studies of adult Taku River sockeye salmon (Oncorhyncus nerka) stocks were conducted by the Alaska Department of Fish and Game and the Taku River Tlingit First Nation in 2003. The objectives of the studies were to provide inseason estimates of the inriver abundance of sockeye O. nerka and to document biological charactieristics (migratory timing, migratory raes and age, sex, and size composition) of Taku River sockeye stocks. Tagged-to-untaggedratios of salmon harvested in the Canadian inriver gillnet fisheries were used to develop the estimates of the inriver abundance of sockeye. A total of 5,969 sockeye salmon were captured in fish wheels located in Canyon Island, Alaska, of which 5,463, were tagged and 1,744 (31.9%) were subsequently recovered in fisheries or on the spawning grouds. The inriver run of sockeye salmon past Canyon Island from June 5 to September 17 was estimated to be 200,918 fish (95% confidence interval 180,905 to 220,931). Canadian commercial, aboriginal and test fisheries harvested 32,933, 267 and 27 sockeye, respectively, resulting in a spawning escapement estimate estimate of 167,691 sockeye salmon. Based on mean date and standard deviation of migration timing the sockeye salmon run was approximately one day earlier and more compressed than the 1984-2002 average. The Kuthai Lake sockeye salmon stocks dominated the early portion of the run, the Little Trapper Lake the middle portion, and the Tatsamenie Lake and mainstem stocks the late portion. The fish wheel catches of 15,604 pink salmon, 262 chum salmon, and 49steelhead salmon were 2.8%, 50.8% below average and 29,7% above average, respectively. The pinksalmon run was five days earlier and slightly more compressed than average.
Book Synopsis Mark-recapture Studies of Taku River Adult Sockeye Salmon Stocks in 2009 by : I. Boyce
Download or read book Mark-recapture Studies of Taku River Adult Sockeye Salmon Stocks in 2009 written by I. Boyce and published by . This book was released on 2012 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mark-recapture Studies of Taku River Adult Sockeye Salmon Stocks in 2010 by : James Everett Andel
Download or read book Mark-recapture Studies of Taku River Adult Sockeye Salmon Stocks in 2010 written by James Everett Andel and published by . This book was released on 2014 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mark-recapture Studies of Taku River Adult Sockeye Salmon Stocks in 2011 by : James Everett Andel
Download or read book Mark-recapture Studies of Taku River Adult Sockeye Salmon Stocks in 2011 written by James Everett Andel and published by . This book was released on 2014 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mark-recapture Studies of Taku River Adult Sockeye Salmon Stocks in 2012 and 2013 by :
Download or read book Mark-recapture Studies of Taku River Adult Sockeye Salmon Stocks in 2012 and 2013 written by and published by . This book was released on 2014 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mark-recapture Studies of Taku River Adult Sockeye Salmon Stocks in 2006 by : James Everett Andel
Download or read book Mark-recapture Studies of Taku River Adult Sockeye Salmon Stocks in 2006 written by James Everett Andel and published by . This book was released on 2009 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mark-recapture Studies of Taku River Adult Sockeye Salmon Stocks in 2008 by : James Everett Andel
Download or read book Mark-recapture Studies of Taku River Adult Sockeye Salmon Stocks in 2008 written by James Everett Andel and published by . This book was released on 2012 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mark-recapture Studies of Taku River Adult Sockeye Salmon Stocks in 2005 by : I. Boyce
Download or read book Mark-recapture Studies of Taku River Adult Sockeye Salmon Stocks in 2005 written by I. Boyce and published by . This book was released on 2007 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mark-recapture Studies of Taku River Adult Sockeye Salmon Stocks in 2004 by : James Everett Andel
Download or read book Mark-recapture Studies of Taku River Adult Sockeye Salmon Stocks in 2004 written by James Everett Andel and published by . This book was released on 2007 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mark-recapture Studies of Taku River Adult Sockeye Salmon Stocks in 2007 by : James Everett Andel
Download or read book Mark-recapture Studies of Taku River Adult Sockeye Salmon Stocks in 2007 written by James Everett Andel and published by . This book was released on 2011 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mark-recapture Studies of Taku River Adult Sockeye Salmon Stocks from 1998 to 2002 by : James Everett Andel
Download or read book Mark-recapture Studies of Taku River Adult Sockeye Salmon Stocks from 1998 to 2002 written by James Everett Andel and published by . This book was released on 2004 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annual mark-recapture studies of adult Taku River sockeye salmon (Oncorhyncus nerka) stocks were conducted by the Alaska Department of Fish and Game, the Canadian Department of Fisheries and Oceans and the Taku River First Nation from 1998 to 2002. The objectives of the program were: to provide annual inseason estimates of the inriver abundance of sockeye salmon and to document biological characteristics (migratory timing, migratory rates and age, sex, and size composition) of Taku River sockeye stocks. Marked-to unmarked ratios of salmon harvested in the Canadian inriver gillnet fisheries were used to develop estimates of the inriver abundance of sockeye. During the years 1998 to 2002, an annual averageof 5,349 sockeye salmon were tagged in fish wheels located at Canyon Island, Alaska, of which an average of 1,080 (20.2%) sockeye were subsequently recovered in fisheries or on the spawning grounds.The annual post-season inriver runestimates of sockeye salmon past Canyon Island from 1998 to 2002 was estimated to be 91,548, 113,705, 115,693, 192,269, and 135,233, fish respectively. Annual inriver Canadian commercial, aboriginal and test fisheries combined harvested 19,038, 20,681, 27,942, 47,998, and 31,053 sockeye salmon during those same years (1998 to 2002). The resulting annual spawning escapement estimtes for Taku River sockeye salmon from 1998 to 2002 was 72,271, 95,562, 87,298, 144,071, 103,343, fish respectively.The migratory timing (mean dates and standard deviation of migration) and run timing of the sockeye salmon run was similar to the 15 year average. The Kuthai Lake sockeye salmon stocks dominated the early portion, the Little Trapper Lake the middle portion, and the Tatsamenie Lake and mainstem stocks the late portion of the Taku River sockeye salmon run. Pink fish wheel catches were strong in 1998 and 1999 but below average in 2000 to 2002. Chum salmon fish wheel catches for this 5-year period continued to exhibit the trend of low catches that began in the mid-1980's.
Book Synopsis Mark-recapture Studies of Taku River Adult Salmon Stocks in 1995 by : M. Scott Kelley
Download or read book Mark-recapture Studies of Taku River Adult Salmon Stocks in 1995 written by M. Scott Kelley and published by . This book was released on 1997 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: A report on a study of tagging operations of chinook, sockeye, and coho salmon in the Taku River around Canyon Island, Alaska in order to estimate escapement.
Book Synopsis Adult Mark-recapture Studies of Taku River Salmon Stocks in 1989 by : Andrew J. McGregor
Download or read book Adult Mark-recapture Studies of Taku River Salmon Stocks in 1989 written by Andrew J. McGregor and published by . This book was released on 1991 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Spawning Abundance of Chinook Salmon in the Taku River in 2003 by :
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 Synopsis General Technical Report PNW-GTR by :
Download or read book General Technical Report PNW-GTR written by and published by . This book was released on 1999 with total page 990 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Abundance of the Sockeye Salmon Escapement in the Alsek River Drainage, 2004 by :
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: