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An improved girthometer for studies of gill net selectivity

Progressive Fish-Culturist

Out-of-print
By:
,
DOI: 10.1577/1548-8640(1968)30[62:AIGFSO]2.0.CO;2

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Abstract

Gill nets are effective for collecting samples of many fish species. These nets may be highly selective in their catch, depending on the mesh size or sizes used and on the size distribution and body shape of the fish in the population. Early studies related mesh selectivity to length or, in a few instances, to length and weight. Later studies showed that the selectivity of gill nets was related more closely to the girth of the fish than to the length, weight, or a combination of these. The girthometer presented here was designed for rapid and accurate measurement of the fish girth. Both speed and accuracy are important when very large numbers of fish are sampled for mesh-selectivity studies. It is also important that a girthometer be sturdy and rigid enough to provide accurate measurements in spite of rough handling and difficult working conditions.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
An improved girthometer for studies of gill net selectivity
Series title:
Progressive Fish-Culturist
DOI:
10.1577/1548-8640(1968)30[62:AIGFSO]2.0.CO;2
Volume
30
Issue:
1
Year Published:
1968
Language:
English
Publisher:
Taylor & Francis
Publisher location:
London, UK
Contributing office(s):
Great Lakes Science Center
Description:
3 p.
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
62
Last page:
64
Number of Pages:
3