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The relative efficiency of nylon and cotton gill nets for taking lake trout in Lake Superior

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The relative efficiency of nylon and cotton gill nets for taking lake trout in Lake Superior; 1962; Article; Journal; Journal of the Fisheries Research Board of Canada; Pycha, Richard L.

Summary

The change from cotton to nylon twine for gill nets in 1949–52 resulted in a sharp increase in the efficiency of the most important gear used for taking lake trout in Lake Superior, and, consequently, biased estimates of fishing intensity and abundance severely.From early May to the end of September 1961, short gangs (2000 or 4000 linear feet) of cotton and nylon nets were fished in parallel sets for lake trout. A total of 343,000 feet of gill netting was lifted. Nylon nets were 2.25 times as efficient as cotton nets for taking legal-sized fish and 2.8 times as efficient for undersized lake trout. The average lengths of legal, undersized, and all lake trout taken in nets of the two materials did not differ greatly. The percentage of [...]

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Author :
Richard L. Pycha
Publisher :
NRC Research Press

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Harvested on Thu Mar 31 05:08:19 MDT 2016 from MODS XML Service

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Type Scheme Key
local-index unknown 1000289
local-pk unknown 1000289
doi http://www.loc.gov/standards/mods/mods-outline-3-5.html#identifier doi:10.1139/f62-071
series unknown Journal of the Fisheries Research Board of Canada

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citationTypeArticle
journalJournal of the Fisheries Research Board of Canada
languageEnglish
parts
typevolume
value19
typeissue
value6

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