The Design and Operation of a Trap for the Capture of Migrating Young Sockeye Salmon
作者:
J.R. Brett,
期刊:
Transactions of the American Fisheries Society
(Taylor Available online 1948)
卷期:
Volume 75,
issue 1
页码: 97-104
ISSN:0002-8487
年代: 1948
DOI:10.1577/1548-8659(1945)75[97:TDAOOA]2.0.CO;2
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
A means of obtaining young sockeye salmon, Oncorhynchus nerka, during their seaward migration by use of a netting fence and a central trap has been found successful in the Lakelse River, British Columbia. By operating at the point of maximum width and minimum rate of flow, the problems of current force and accumulation of debris were overcome. Increased rate of flow into the trap, which served to attract the fish, was obtained by use of a funnel entrance. It was discovered that the size of the openings of the trap must be such as to allow the entrance of schools of sockeye rather than individuals. These schools were found to converge and enter the trap more readily through slits in a horizontal plane than through those in a vertical position.
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