한국수산과학회지 (Korean Journal of Fisheries and Aquatic Sciences)
- 제5권1호
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- Pages.11-16
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- 1972
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- 0374-8111(pISSN)
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- 2287-8815(eISSN)
삼치 유자망 어구의 선택성에 관하여
SELECTIVITY OF DRIET NET FOR SPANISH MACKEREL SCOMBEROMORUS NIPHONIUS
초록
1969년
During the period from 1966 to 1968, total catches of Spanish mackerel averaged 6,000 to 7,000M/T per annual in Korea, and approximately 70 per cent of this amount was captured by drift nets. In an effort to improve the efficiency of drift nets, some experiments were conducted in 1969 to investigate the selectivity of material and mesh sizes. Seven different mesh sizes (80,85,95,100,105,110 and 115 mm) of both multi- and mono-filament netting were used, and the following results were obtained : 1, The body weight of Spanish mackerel taken with the seven different mesh sizes ranges from 0.5kg to 2.9kg, and the mode of body weight consists of three groups, 1kg (
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