Northwest Fisheries Science Center

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Document Type: Journal Article
Center: NWFSC
Document ID: 7753
Title: Collection of juvenile salmonids from turbine intake gatewells of major dams in the Columbia River system
Author: Wallace W. Bentley, Howard L. Raymond
Publication Year: 1968
Journal: Transactions of the American Fisheries Society
Volume: 97
Issue: 2
Pages: 124-126
Abstract:

Turbine intake gatewells at Ice Harbor Dam on the Snake River were evaluated for their utility as collection areas of juvenile salmonids.  The investigation took place from 1964 through 1966; results indicated that gatewell collecting is economical and efficient.  One 3-man crew, in 1964, did the sampling; depending on water flow, the collections represented 2 to 6% of the total population.  The sampling rate in the gatewells will enable a high degree of confidence to be placed on measurements of timing, migration rates, survival, and relative magnitude of the seaward migrations. 

URL1: The next link will exit from NWFSC web site http://dx.doi.org/10.1577/1548-8659(1968)97[124:COJSFT]2.0.CO;2