Download or read book Juvenile Salmonid Direct Survival injury in Passage Through the Ice Harbor Dam Spillway Snake River written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Direct Survival and Injury of Juvenile Salmon Passing Ice Harbor Spillway Under Plunging Skimming and Undular Tailwater Conditions written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Differential Spill Volume and Entrainment Depth on Survival and Injury of Juvenile Salmonids at the Ice Harbor Dam Spillway Snake River written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Assessment of Lower Snake River Hydrosystem Alternatives on Survival and Recovery of Snake River Salmonids Appendix to the U S Army Corps of Engineers Lower Snake River Juvenile Salmonid Migration Feasibility Study written by Northwest Fisheries Science Center (U.S.) and published by DIANE Publishing. This book was released on 2001 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lower Snake River Juvenile Salmon Migration Feasibility Report environmental Impact Statement Chapters 1 4 written by and published by . This book was released on 2002 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Estimated Direct Mortality and Injury of Juvenile Salmonids in Passage Through The Dalles Dam Spillway Columbia River in Spring and Summer 2002 written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Annual Fish Passage Report written by United States. Army. Corps of Engineers. North Pacific Division and published by . This book was released on 2007 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Multiple Turbine Passage on Juvenile Snake River Salmonid Survival written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Juvenile salmonids originating in the Snake River upstream of Lower Granite Dam must pass up to eight hydroelectric projects during their downstream migration to the Pacific Ocean. Fish may pass a project through a turbine or a spillbay or be screened into a bypass system that either collects fish into a barge or releases them downstream of the project. Previous reviews of studies of downstream passage for salmon at hydroelectric projects in the Columbia River basin found higher mean mortality at turbines than for spillways or bypass systems. The potential mechanisms of mortality during turbine passage may include pressure changes, cavitation, shear, turbulence, strike, or grinding. Observing those mechanisms is challenging in the field, but laboratory studies have demonstrated that a single exposure to shear or pressure changes similar to turbine passage conditions can result in injury for some individuals. Because fish pass several dams along their migration, individuals experience a series of passage events. If estimates of surviving the passage of a single project are applied to each passage event, then the underlying assumption is that the mortality at each project is independent of previous exposure. If individuals approaching a project were already sub-lethally stressed, higher than expected mortality rates might occur upon subsequent passage events. Report presents the hypothesis that fish passing more than one turbine will experience a greater than expected rate of mortality. Because measuring an incremental increase in mortality would be challenging in the field, scientists developed an approach to first assess whether such an increment has any potential to influence a fish population. This approach identified populations at risk and will help design laboratory or field experiments to address those risks.
Download or read book Estimated Direct Mortality and Injury Rates of Juvenile Salmonids in Passage Through the Dalles Dam Spillway Columbia River in Spring and Summer 2002 written by United States. Army. Corps of Engineers. Portland District and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Download or read book Lower Snake River Juvenile Salmon Migration Feasibility Report written by and published by . This book was released on 2002 with total page 900 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Survival Estimates for the Passage of Juvenile Salmonids Through Snake River Dams and Reservoirs 1996 written by Steven Glen Smith and published by . This book was released on 1996 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Survival Estimates for the Passage of Juvenile Salmonids Through Snake River Dams and Reservoirs 1994 written by William D. Muir and published by . This book was released on 1995 with total page 187 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Survival Estimates for the Passage of Spring migrating Juvenile Salmonids Through Snake and Columbia River Dams and Reservoirs 2005 written by and published by . This book was released on 2006 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Endangered Species Act Section 7 Consultation written by United States. National Marine Fisheries Service and published by . This book was released on 2000 with total page 1030 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Post construction Evaluation of the Juvenile Salmonid Bypass System at Ice Harbor Dam 1996 written by and published by . This book was released on 1997 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Columbia and Snake Rivers 1992 Salmon Flow Measures ID OR WA Options Analysis Document written by and published by . This book was released on 1992 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt:
