|Document Type:||Journal Article|
|Title:||Collection of juvenile salmonids from turbine intake gatewells of major dams in the Columbia River system|
|Author:||Wallace W. Bentley, Howard L. Raymond|
|Journal:||Transactions of the American Fisheries Society|
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.