Open AccessMonitoring of Subyearling Chinook Salmon Survival and Passage at Bonneville Dam, Summer 2010
Author(s) -
Gene R. Ploskey,
Mark A. Weiland,
Thomas J. Carlson
Publication year - 2011
Language(s) - English
Resource type - Reports
DOI - 10.2172/1013301
Subject(s) - chinook wind , tailwater , environmental science , fishery , fish <actinopterygii> , oncorhynchus , hydrology (agriculture) , oceanography , engineering , geology , biology , geotechnical engineering
The purpose of this study was to estimate dam passage and route specific survival rates for subyearling Chinook salmon smolts to a primary survival-detection array located 81 km downstream of the dam, evaluate a BGS located in the B2 forebay, and evaluate effects of two spill treatments. The 2010 study also provided estimates of forebay residence time, tailrace egress time, spill passage efficiency (SPE), and spill + B2 Corner Collector (B2CC) efficiency, as required in the Columbia Basin Fish Accords. In addition, the study estimated forebay passage survival and survival of fish traveling from the forebay entrance array, through the dam and downstream through 81 km of tailwater