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Selectivity and Efficiency of Experimental Gill Nets in South Bay and Georgian Bay of Lake Huron
Author(s) -
Berst A. H.
Publication year - 1961
Publication title -
transactions of the american fisheries society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.696
H-Index - 86
eISSN - 1548-8659
pISSN - 0002-8487
DOI - 10.1577/1548-8659(1961)90[413:saeoeg]2.0.co;2
Subject(s) - bay , perch , fishery , catostomus , coregonus , biology , fish <actinopterygii> , geography , archaeology
Gill‐net selectivity curves for ciscoes (Coregonus artedii), round whitefish (Prosopium cylindraceum), chub species (mainly Coregonus hoyi, with a few representatives of C. reighardi), yellow perch (Perca flavescens), and white suckers (Catostomus commersoni) were obtained from the analysis of catch statistics of experimental nylon gill nets fished in Georgian Bay in 1958 and 1959 and in South Bay during the period of 1954 to 1959 inclusive. The method for analysis of the data is similar to that developed by McCombie and Fry (1960). The relative efficiency of nylon and cotton gill nets in catching these species has been compared on the basis of catches of each material made in South Bay. Nylon gill net was found to be 1.3 to 3.6 times as effective as cotton, depending on the species. With the exception of yellow perch, the size composition of catches made with nylon and cotton nets does not differ significantly.