A Study of the Comparative Efficiency between Nylon and Linen Gillnets

Field tests were conducted during the spring of 1959 to compare the differences in the catches of soft-rayed fishes by synthetic (nylon) fiber and natural (linen) fiber gillnets. Test nets were matched as closely as possible from commercial net sources and each section was located randomly as to seq...

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Bibliographic Details
Published in:Chesapeake science 1960-06, Vol.1 (2), p.96-102
Main Author: Muncy, Robert J.
Format: Article
Language:English
Subjects:
Cotton
Fish
Fisheries
Freshwater fishes
Gill nets
Herring
Linen
Natural fibers
Shad
Synthetic fibers
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Summary:Field tests were conducted during the spring of 1959 to compare the differences in the catches of soft-rayed fishes by synthetic (nylon) fiber and natural (linen) fiber gillnets. Test nets were matched as closely as possible from commercial net sources and each section was located randomly as to sequence of mesh size and material. American shad (Alosa sapidissima), glut herring (Alosa aestivalis), and alewife herring (Alosa pseudoharengus) were the only species caught in sufficient numbers for comparisons between nets of different fibers. Analysis of the catches of American shad revealed differences in the numbers, length-frequency and length-weight of fish from nylon and linen gillnets. Nylon anchor gillnets caught twice as many American shad as were caught in linen anchor gillnets of the same length and mesh sizes. Also, male American shad taken from nylon nets were heavier than those taken from linen nets. Although statistical comparisons were not possible with the small number of American shad caught in drift gillnets nor with the small number of herring caught in anchor gillnets, the greater numbers of fish were taken in nylon nets.
ISSN:0009-3262
DOI:10.2307/1350925