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Book Approach Passage and Survival of Juvenile Salmonids at Little Goose Dam Washington

Download or read book Approach Passage and Survival of Juvenile Salmonids at Little Goose Dam Washington written by U.S. Department of the Interior and published by CreateSpace. This book was released on 2014-03-30 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes a study of dam passage and survival of radio-tagged juvenile salmonids after installation of a temporary spillway weir (TSW) at Little Goose Dam, Washington, in 2009. The purpose of the study was to document fish passage and survival when the dam was operated with the TSW in place. Spillway weirs are one of several methods used to improve downstream passage of juvenile salmonids. Each spillway weir design is based on the concept of providing an overflow weir with a depth more similar to the natural migration depth of juvenile salmonids than conventional spill bays. Little Goose Dam was the last of the four lower Snake River dams to have a spillway weir installed. This was the first year that some form of surface passage device was operating at all Snake River and Columbia River dams between Lewiston, Idaho, and the Columbia River estuary.

Book Assessing Survival of Mid Columbia River Released Juvenile Salmonids at McNary Dam Washington 2008 09

Download or read book Assessing Survival of Mid Columbia River Released Juvenile Salmonids at McNary Dam Washington 2008 09 written by U.S. Department of the Interior and published by CreateSpace. This book was released on 2014-03-30 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: Few studies have evaluated survival of juvenile salmon over long river reaches in the Columbia River and information regarding the survival of sockeye salmon at lower Columbia River dams is lacking. To address these information gaps, the U.S. Geological Survey was contracted by the U.S. Army Corps of Engineers to evaluate the possibility of using tagged fish released in the Mid-Columbia River to assess passage and survival at and downstream of McNary Dam. Using the acoustic telemetry systems already in place for a passage and survival study at McNary Dam, fish released from the tailraces of Wells, Rocky Reach, Rock Island, Wanapum, and Priest Rapids Dams were detected at McNary Dam and at the subsequent downstream arrays. These data were used to generate route-specific survival probabilities using single-release models from fish released in the Mid-Columbia River.

Book Approach Passage and Survival of Juvenile Salmonids at Little Goose Dam Washington Post construction Evaluation of a Temporary Spillway Weir

Download or read book Approach Passage and Survival of Juvenile Salmonids at Little Goose Dam Washington Post construction Evaluation of a Temporary Spillway Weir written by John W. Beeman and published by . This book was released on 2010 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book A Multi Year Analysis of Spillway Survival for Juvenile Salmonids As a Function of Spill Bay Operations at McNary Dam Washington and Oregon 2004 09

Download or read book A Multi Year Analysis of Spillway Survival for Juvenile Salmonids As a Function of Spill Bay Operations at McNary Dam Washington and Oregon 2004 09 written by U.S. Department of the Interior and published by CreateSpace. This book was released on 2014-03-30 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: As juvenile salmon Oncorhynchus spp. and steelhead O. mykiss migrate downriver to the ocean, they are subject to natural and human-induced mortality. Predators contribute to total natural mortality along with other factors.

Book A Multi Year Analysis of Passage and Survival at McNary Dam 2004 09

Download or read book A Multi Year Analysis of Passage and Survival at McNary Dam 2004 09 written by U.S. Department of the Interior and published by CreateSpace. This book was released on 2014-03 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: As juvenile salmon Oncorhynchus spp. and steelhead O. mykiss migrate downriver to the ocean, they are subject to both natural- and human-induced mortality. Avian and piscivorous predators contribute to total natural mortality along with other factors (Vigg and others, 1991; Collis and others, 2001). Hydroelectric projects on the Snake and Columbia Rivers also can be major sources of mortality for migrating juvenile fish. Impoundments caused by dams may indirectly contribute to salmonid mortality by slowing the migration of juvenile salmonids (Raymond 1968, 1979; Plumb and others, 2006), thereby increasing energy expenditure during migration and allowing greater opportunity for predation. Furthermore, passage through dams can be a major source of direct mortality (Mesa, 1994; Whitney and others, 1997) that is cumulative for salmonid populations that negotiate multiple dams.

Book Estimates of Survival and Condition of Juvenile Salmonids Passing Through the Downstream Migrant Fish Protection Facilities at Red Bluff Diversion Dam on the Sacramento River Spring and Summer 1994

Download or read book Estimates of Survival and Condition of Juvenile Salmonids Passing Through the Downstream Migrant Fish Protection Facilities at Red Bluff Diversion Dam on the Sacramento River Spring and Summer 1994 written by John P. Bigelow and published by . This book was released on 1997 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Juvenile Salmonid Survival and Condition in Passage Through Two Flow Deflector Configurations at the Bonneville Dam Spillway

Download or read book Juvenile Salmonid Survival and Condition in Passage Through Two Flow Deflector Configurations at the Bonneville Dam Spillway written by Normandeau Associates, Inc and published by . This book was released on 2003* with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Juvenile Salmonid Survival and Condition in Passage Through Modified Spillbays at Bonneville Dam Columbia River

Download or read book Juvenile Salmonid Survival and Condition in Passage Through Modified Spillbays at Bonneville Dam Columbia River written by Normandeau Associates, Inc and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Analyses of Potential Factors Affecting Survival of Juvenile Salmonids Volitionally Passing Through Turbines at Mcnary and John Day Dams Columbia River

Download or read book Analyses of Potential Factors Affecting Survival of Juvenile Salmonids Volitionally Passing Through Turbines at Mcnary and John Day Dams Columbia River written by U.S. Department of the Interior and published by CreateSpace. This book was released on 2014-03-30 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study indicates that turbine passage survival of the study fish was primarily affected by biological covariates rather than operational covariates. A negative effect of tag burden was strongly supported in data from yearling Chinook salmon at John Day and McNary dams, but not for subyearling Chinook salmon or juvenile steelhead. The negative effect of tag burden in data we examined from yearling Chinook salmon supports the recent findings from laboratory studies of barotrauma effects.