Design and Relative Efficiency of a Bow-Mounted Pushnet for Sampling Juvenile Pelagic Fishes
作者:
WilliamH. Kriete,
JosephG. Loesch,
期刊:
Transactions of the American Fisheries Society
(Taylor Available online 1980)
卷期:
Volume 109,
issue 6
页码: 649-652
ISSN:0002-8487
年代: 1980
DOI:10.1577/1548-8659(1980)109<649:DAREOA>2.0.CO;2
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
A bow-mounted pushnet designed to sample near-surface young-of-the-year pelagic fishes had a significantly higher catch rate than a stern trawl previously used. The ratio of catches (numbers of fish) for simultaneous sampling with the pushnet and two identical trawls was 23:3:1. Both gear sampled the same population with respect to fish length. The pushnet requires a crew of only two, can be operated in shoal water, and multiple net installation is possible. The outboard vessel-pushnet unit is highly mobile because the frame is readily raised for cruising and swung aft, but not detached, for trailering.
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