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RISS 인기검색어
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- 저자 : 곽의환(Uihwan KWAK) (검색결과 1 건)
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곽의환(Uihwan KWAK),장원근(Wonkeun JANG),한인우(Inwoo HAN),이경훈(Kyounghoon LEE) 전남대학교 어업기술연구소 2017 어업기술연구소보고지 Vol.10 No.1
From May to November, 2016 (May, August, November), the survey was conducted to investigate the actual condition on the shrimp beam trawl net in Yeosu coastal area. Because the mesh size of the shrimp beam trawl net is small, various benthic fish were caught together with shrimp. During the survey period, total 361.5 kg of 79 species which include 52 fish species, 18 crustaceans and 6 cephalopods was caught in the target area. The dominant species were Argyrosomus argentatus, Thryssa kammalensis, Trichiurus lepturus, Metapenaeus joyneri, and Larimichthys polyactis. The caught species of shrimp in Yeosu coastal area were shown to be Parapenaeopsis tenella, Trachysalambria curvirostris, and Metapenaeus joyneri. Although the catch amount of shrimp was decreased in May and August, it was sharply increased from November when the water temperature became lowered. In November, the catch amount of shrimp accounted for 87% of the total catch amount. For analysis by coastal area, Yeosu coastal area were grouped as A and B, and Namhae coastal area was classified as C. It was shown that the catch rate of Yeosu coastal area was 76.6% and the catch rate of Namhae coastal area was 88.6%. In order to reduce the catch rate of shrimp by the beam trawl net, the bycatch reduction device (BRD) should be mandatory and studies on technical parts such as selective fishing techniques should be carried out together.
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