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http://dx.doi.org/10.3796/KSFT.2003.39.3.174

Size selectivity of round traps for greenling (Hexagrammos otakii) in the western sea of Korea  

신종근 (서해수산연구소)
박해훈 (국립수산과학원)
Publication Information
Journal of the Korean Society of Fisheries and Ocean Technology / v.39, no.3, 2003 , pp. 174-180 More about this Journal
Abstract
This study investigated the size selectivity of the round traps for greenling (Hexagrammos otakii) in the western sea of Korea. The selection curve for the greenling from the experiments on Oct. 2000 and Ar. 2001 was fitted by Kitahara's method to a polynomial equation and two parameter logistic selection curve. The selectio curve of the latter was more reasonable than that of the former. The equation of selectivity curve obtained using a logistic function with least square method was , s(R)=1/1+exp(-1.1169R+6.4565), where R=1/m, and 1 and m are total length and mesh size, respectively. The size selectivity curve showed that the current regulated mesh size(35mm) in case of the round trap was close to the L50 (37.0mm) of the selection curve for the biological minimum length (21.4cm) of the greenling.
Keywords
selectivity; round trap; Kitahara; logistic; greenling;
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Times Cited By KSCI : 1  (Citation Analysis)
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