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http://dx.doi.org/10.3796/KSFT.2010.46.3.204

A study on the bycatches by mesh size of spring-net-pot in Geo-je & Tong-young waters of Korea  

Cha, Bong-Jin (Fisheries System Engineering Division, National Fisheries Research & Development Institute)
Cho, Sam-Kwang (Fisheries System Engineering Division, National Fisheries Research & Development Institute)
Lee, Gun-Ho (Fisheries System Engineering Division, National Fisheries Research & Development Institute)
Publication Information
Journal of the Korean Society of Fisheries and Ocean Technology / v.46, no.3, 2010 , pp. 204-213 More about this Journal
Abstract
Test fishing was carried out using six kinds of different mesh sizes (20, 22, 24, 28, 35, 40mm) for springnet-pot to study bycatches according to the mesh size and catches survey was done for another one (mesh size : 22mm, entrance round : 350mm) in Geo-je & Tong-young waters of Korea. On the first sea experiment, it was thought that suitable mesh size of spring-net-pot catching conger-eel over 35cm with decreasing the catches of conger-eel (Conger myriaster) below 35cm was 24mm. On the second sea experiment, commercial catches were crabs (Charybdis bimaculata), octopus minor (Octopus variabilis) and others including conger-eel, and catches proportion was 60% of total catches weights. There was no big difference for the monthly catches. Self-consumption catches were 9 species including conger-eel below 35cm holding 50% of catches in the side of weights. There were 40% of bycatches for the catches weights and 63% for catches numbers in the 22mm mesh size of spring-net-pot having entrance round over 140mm. It showed that 50% of catches weights were discarded.
Keywords
Spring-net-pot; Mesh size; Bycatches; Discard; Self-consumption;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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