Download or read book Snake River Basin 2019 2020 written by Lytle Denny and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Steelhead trout Oncorhynchus mykiss in the Snake River basin are the focus of a variety of harvest and conservation programs. Information needs for management of Snake River steelhead within this large and complex arena can be systematically addressed using a run reconstruction model. The purpose of this work is to summarize data describing the abundance of steelhead crossing Lower Granite Dam (LGR) and estimate the fishery-related impacts on both hatchery and wild steelhead as they migrate to their natal or release area in the Snake River basin. The model provides an analytical tool whose outputs can be used to bridge gaps in the existing data using reasonable assumptions in a structured manner. Representatives from the anadromous fishery management agencies within the Snake River basin collaborate to complete a run reconstruction for Snake River steelhead, which have been modeled since 2011. In this report our objective was to estimate the disposition of steelhead within the Snake River basin from July 1, 2019 to June 30, 2020 (spawn year 2020). After adjusting for nighttime passage and fallback, we estimated 9,771 wild steelhead, 2,449 unmarked hatchery steelhead, and 23,646 adipose-clipped hatchery steelhead passed LGR on the Snake River during spawn year 2020. Fishery-related steelhead mortality in the Snake River basin upstream of Ice Harbor Dam totaled 390 wild, 197 unmarked hatchery, and 8,864 marked hatchery fish. An additional 158 wild, 426 unclipped hatchery, and 7,069 clipped hatchery fish were collected for broodstock, culled, or donated to food banks (only hatchery fish). Snake River wild steelhead stocks experienced total losses of 21.8% between Bonneville Dam and Ice Harbor Dam. Fishery-related losses across all Major Population Groups of wild steelhead within the Snake River basin was 3.5%. Model results will allow Snake River basin managers to evaluate fishery impacts on wild steelhead, evaluate hatchery program performance, and help evaluate the performance of the Snake River steelhead evolutionarily significant unit.

Download or read book Index of Surface water Records written by Geological Survey (U.S.). Surface Water Branch. Boise District and published by . This book was released on 1948 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Index of Surface water Records written by Geological Survey (U.S.). Surface Water Branch. Boise District and published by . This book was released on 1951 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Snake River Basin written by Geological Survey (U.S.) and published by . This book was released on 1938 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Historic Records Snake River Basin written by Idaho Water Resource Board. Hydrology Branch and published by . This book was released on 1972 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Snake River Basin written by Geological Survey (U.S.) and published by . This book was released on 1940 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Lower Snake River Basin Idaho Oregon Washington written by and published by . This book was released on 1967 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Index of Surface water Records to September 30 1967 written by H. P. Eisenhuth and published by . This book was released on 1968 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Upper Snake River Basin Study written by and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Snake River Basin written by Geological Survey (U.S.) and published by . This book was released on 1949 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Streamflow Gains and Losses in the Snake River and Ground water Budgets for the Snake River Plain Idaho and Eastern Oregon written by L. C. Kjelstrom and published by . This book was released on 1995 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Index of Surface water Records to September 30 1955 written by E. G. Bailey and published by . This book was released on 1956 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report of the Snake River Basin Water Committee written by Snake River Basin Water Committee and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Snake River basin written by United States. National Resources Committee. Water Resources Committee and published by . This book was released on 1936 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Preliminary Report Snake River basin written by Washington State Planning Council and published by . This book was released on 1936 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Snake River Basin written by H. P. Eisenhuth and published by . This book was released on 1968 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Inventory of Snake River Basin Manufacturing Plans and Tabular Projections by Month and Service Area written by R. L. Coughlin and published by . This book was released on 1965 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: