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Use of a portable electric barrier to estimate Chinook salmon escapement in a turbid Alaskan river

North American Journal of Fisheries Management

By:
and
https://doi.org/10.1577/1548-8675(1988)008<0475:UOAPEB>2.3.CO;

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Abstract

We developed a portable electric barrier to aid in the capture of adult chinook salmon Oncorhynchus tshawytscha undergoing spawning migrations up a turbid stream in south-central Alaska. In 1981, we tagged and released 157 chinook salmon after diverting them from the main-stem Killey River into a conventional trap with the aid of the electric barrier. On the basis of returns of tagged salmon to Benjamin Creek, a clear-water tributary of the upper Killey River, we estimated spawners in the drainage to number 8,000 fish. Two different statistical approaches to the mark–recapture data yielded similar estimates. Through several modifications of the electric barrier, we were able to reduce mortality associated with the barrier's use.

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Additional publication details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Use of a portable electric barrier to estimate Chinook salmon escapement in a turbid Alaskan river
Series title:
North American Journal of Fisheries Management
DOI:
10.1577/1548-8675(1988)008<0475:UOAPEB>2.3.CO;
Volume:
8
Issue:
4
Year Published:
1988
Language:
English
Publisher:
American Fisheries Society
Contributing office(s):
Western Fisheries Research Center
Description:
6 p.
First page:
475
Last page:
480
Country:
United States
State:
Alaska