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Kanalku Lake Subsistence Sockeye Salmon Project
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Book Synopsis Kanalku Lake Subsistence Sockeye Salmon Project by : Raymond F. Vinzant
Download or read book Kanalku Lake Subsistence Sockeye Salmon Project written by Raymond F. Vinzant and published by . This book was released on 2015 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reports on the sustainability of stock of sockeye salmon through mark-recapture estimates and weir implementation in Kanalku Lake, Angoon Region, Admiralty Island, Southeast Alaska.
Book Synopsis Kanalku Lake Subsistence Sockeye Salmon Project by : Raymond F. Vinzant
Download or read book Kanalku Lake Subsistence Sockeye Salmon Project written by Raymond F. Vinzant and published by . This book was released on 2010 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Kanalku Lake Subsistence Sockeye Salmon Project by : Raymond F. Vinzant
Download or read book Kanalku Lake Subsistence Sockeye Salmon Project written by Raymond F. Vinzant and published by . This book was released on 2013 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reports on the sustainability of stock of sockeye salmon through mark-recapture estimates and weir implementation in Kanalku Lake, Angoon Region, Admiralty Island, Southeast Alaska.
Book Synopsis Kanalku Lake Subsistence Salmon Project by : Raymond F. Vinzant
Download or read book Kanalku Lake Subsistence Salmon Project written by Raymond F. Vinzant and published by . This book was released on 2017 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The sockeye salmon (Oncorhynchus nerka) run at Kanalku Lake, Southeast Alaska, is the preferred traditional subsistence sockeye salmon stock for the nearby community of Angoon. A stock assessment program was initiated at Kanalku Lake in 2001 in response to community concerns over declining run size and possible overexploitation by local fishermen. Annual spawning escapements were estimated through mark-recapture studies from 2001 to 2006, through a standard picket weir from 2007 to 2014, and through a camera weir since 2015. In 2016 we counted a total of 2,236 sockeye salmon through a double-fence camera weir at the outflow of Kanalku Lake. We also operated a camera weir downstream of Kanalku Falls in lower Kanalku Creek to estimate the total escapement into the Kanalku system, and to estimate the inriver mortality associated with the partial barrier falls. We estimated the total escapement to Kanalku Creek was 3,093 sockeye salmon thus, the inriver mortality was estimated to be 28% in 2016. Although scale samples collected in 2016 were highly resorbed and could not be accurately aged, length data suggested approximately 92% of the spawning population was age-1.2 fish.
Book Synopsis Kanalku Lake Subsistence Sockeye Salmon Project by : Raymond F. Vinzant
Download or read book Kanalku Lake Subsistence Sockeye Salmon Project written by Raymond F. Vinzant and published by . This book was released on 2012 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reports on the sustainability of stock of sockeye salmon through mark-recapture estimates and weir implementation in Kanalku Lake, Angoon Region, Admiralty Island, Southeast Alaska.
Book Synopsis Kanalku Lake Subsistence Sockeye Salmon Project by : Raymond F. Vinzant
Download or read book Kanalku Lake Subsistence Sockeye Salmon Project written by Raymond F. Vinzant and published by . This book was released on 2014 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reports on the sustainability of stock of sockeye salmon through mark-recapture estimates and weir implementation in Kanalku Lake, Angoon Region, Admiralty Island, Southeast Alaska.
Book Synopsis Kanalku Lake Subsistence Sockeye Salmon Project by : Raymond F. Vinzant
Download or read book Kanalku Lake Subsistence Sockeye Salmon Project written by Raymond F. Vinzant and published by . This book was released on 2011 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reports on the sustainability of stock of sockeye salmon through mark-recapture estimates and weir implementation in Kanalku Lake, Angoon Region, Admiralty Island, Southeast Alaska.
Book Synopsis Kanalku Lake Subsistence Sockeye Salmon Project by : Raymond F. Vinzant
Download or read book Kanalku Lake Subsistence Sockeye Salmon Project written by Raymond F. Vinzant and published by . This book was released on 2010 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reports on the sustainability of stock of sockeye salmon through mark-recapture estimates and weir implementation in Kanalku Lake, Angoon Region, Admiralty Island, Southeast Alaska.
Book Synopsis Kanalku Lake Subsistence Sockeye Salmon Project by : Raymond F. Vinzant
Download or read book Kanalku Lake Subsistence Sockeye Salmon Project written by Raymond F. Vinzant and published by . This book was released on 2016 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: The sockeye salmon (Oncorhynchus nerka) run at Kanalku Lake, Southeast Alaska, is the preferred traditional subsistence sockeye salmon stock for the nearby community of Angoon. A stock assessment program was initiated at Kanalku Lake in 2001 in response to community concerns over declining run size and possible overexploitation by local fishermen. Annual escapements were estimated through mark-recapture studies from 2001 to 2006 and through a standard picket weir operated at the outlet of the lake since 2007. In 2015, we counted 1,180 sockeye salmon through a video camera weir near the lake outlet. The standard picket weir was removed mid-season due to intense predation on sockeye salmon by resident river otters (Lontra canadensis), and consequently, we were unable to calculate a mark-recapture estimate of escapement. We also operated a video camera weir in lower Kanalku Creek, downstream of Kanalku Falls, to estimate the total escapement into the Kanalku system and estimate the in-river mortality associated with the partial barrier falls. The estimated total escapement was 1,911 sockeye salmon; thus only 62% of the sockeye salmon that entered Kanalku Creek in 2015 successfully ascended the falls and were counted at the lake camera weir. The sockeye salmon escapement was composed primarily of age-1.2 fish (84%), similar to previous years.
Book Synopsis Kanalku Lake Subsistence Sockeye Project by : Raymond F. Vinzant
Download or read book Kanalku Lake Subsistence Sockeye Project written by Raymond F. Vinzant and published by . This book was released on 2018 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: The sockeye salmon (Oncorhynchus nerka) run at Kanalku Lake, Southeast Alaska, is the preferred traditional sockeye salmon subsistence stock for the nearby community of Angoon. A stock assessment program was initiated at Kanalku Lake in 2001 in response to community concerns over declining run size and possible overexploitation by local fishermen. Annual spawning escapements were estimated through mark-recapture studies from 2001 to 2006, through a standard picket weir from 2007 to 2014, and through a camera weir from 2015 to 2017. We counted a spawning escapement of 468 sockeye salmon through a double-fence camera weir at the outflow of Kanalku Lake in 2017--the third lowest spawning escapement since stock assessment began in 2001. We also operated a camera weir downstream of Kanalku Falls to estimate the total escapement into the Kanalku system and to estimate the inriver mortality associated with the partial barrier falls. The total escapement into the Kanalku system was 870 sockeye salmon; thus 54% of the inriver run successfully ascended the falls in 2017, an inriver mortality rate of 46%. Sockeye salmon passage rates have not markedly improved since barrier modification work was conducted at the falls in 2013. Inriver passage rates averaged 63% from 2014 to 2017 and ranged from 54% (2017) to 72% (2016); very similar to the passage rates of 49% (2012) and 76% (2013) observed before the barrier modification work was completed. The Kanalku Lake sockeye salmon run has been limited by very small spawning escapements that have produced modest numbers of adult recruits 4-5 years later. Spawning escapements will need to increase substantially if annual runs are expected to improve above the low levels observed since 2001.
Book Synopsis Kanalku and Sitkoh Lakes Subsistence Sockeye Salmon Project by : Jan Marie Conitz
Download or read book Kanalku and Sitkoh Lakes Subsistence Sockeye Salmon Project written by Jan Marie Conitz and published by . This book was released on 2007 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report discusses the estimated escapement of sockeye salmon (Oncorhynchus nerka) in two systems with important subsistence fisheries for the village of Angoon, continuing a series of annual estimates starting in 2001 for Kanalku Lake and 1996 for Sitkoh Lake. Mark-recapture methods, visual surveys, and age, sex, and length sampling on the spawning grounds were used to estimate sockeye escapement and age composition in each lake.
Book Synopsis Kanalku Lake Subsistence Sockeye Project by : Raymond F. Vinzant
Download or read book Kanalku Lake Subsistence Sockeye Project written by Raymond F. Vinzant and published by . This book was released on 2010 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report discusses the estimated escapement of sockeye salmon (Oncorhynchus nerka) in the Kanalku lake subsistence fishery for the village of Angoon. In 2007, a weir was operated in Kanalku Creek to count sockeye salmon passage into the lake. A weir-to-spawning-grounds mark-recapture estimate was also conducted and compared with the weir count and previous years' mark-recapture estimates.
Book Synopsis Kanalku and Sitkoh Lakes Subsistence Sockeye Salmon Project by : Sean Eugene Burril
Download or read book Kanalku and Sitkoh Lakes Subsistence Sockeye Salmon Project written by Sean Eugene Burril and published by . This book was released on 2007 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report discusses the estimated escapement of sockeye salmon (Oncorhynchus nerka) in two systems with important subsistence fisheries for the village of Angoon, continuing a series of annual estimates starting in 2001 for Kanalku Lake and 1996 for Sitkoh Lake. Mark-recapture methods, visual surveys, and age, sex, and length sampling on the spawning grounds were used to estimate sockeye escapement and age composition in each lake.
Book Synopsis Kanalku and Sitkoh Lakes Subsistence Sockeye Salmon Project by : Jan Marie Conitz
Download or read book Kanalku and Sitkoh Lakes Subsistence Sockeye Salmon Project written by Jan Marie Conitz and published by . This book was released on 2008 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report discusses the estimated escapement of sockeye salmon (Oncorhynchus nerka) in two systems with important subsistence fisheries for the village of Angoon, continuing a series of annual estimates starting in 2001 for Kanalku Lake and 1996 for Sitkoh Lake. Mark-recapture methods, visual surveys, and age, sex, and length sampling on the spawning grounds were used to estimate sockeye escapement and age composition in each lake.
Book Synopsis Kanalku, Sitkoh, and Kook Lakes Subsistence Sockeye Salmon Project by : Jan Marie Conitz
Download or read book Kanalku, Sitkoh, and Kook Lakes Subsistence Sockeye Salmon Project written by Jan Marie Conitz and published by . This book was released on 2005 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Kanalku, Kook and Sitkoh Subsistence Sockeye Salmon Project, 2002 Annual Report by : Jan Marie Conitz
Download or read book Kanalku, Kook and Sitkoh Subsistence Sockeye Salmon Project, 2002 Annual Report written by Jan Marie Conitz and published by . This book was released on 2003 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Klawock Lake Subsistence Sockeye Salmon Project, 2006 Annual Report and 2004-2006 Summary by : Jan Marie Conitz
Download or read book Klawock Lake Subsistence Sockeye Salmon Project, 2006 Annual Report and 2004-2006 Summary written by Jan Marie Conitz and published by . This book was released on 2008 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reports on the Klawock Lake subsistence sockeye salmon project, which has been used to accurately determine Klawock sockeye salmon run sizes, as an aid to managing a sustainable subsistence fishery.
