An analysis on catch of the shrimp beam trawl fishery in Korea coastal sea

Bulletin of The Korean Society of Fisheries Technology Pub Date : 2009-03-31 DOI:10.3796/KSFT.2008.45.1.001

Choong-sik Jang, Youngwan Cho, Chae-Rok Lim, Bo-Yeon Kim, Young-Su An

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引用次数: 10

Abstract

Experimental fishing operation by the shrimp beam trawl was carried out to investigate the bycatch in order to develop the selective fishing gear of the shrimp beam trawl fishery. The experimental trawling was performed by the prototype fishing gear in coast sea of Boryeong, Buan, Kangjin, Tongyeong and Geoje from 30 April to 13 November 2005. Bycatches of the experimental trawling were analyzed species composition, total length composition. The results obtained can be summarized as follows; Target fishes caught by the shrimp beam trawl were Palaemon gravieri, Crangon Hakodatei, Trachysalambria curvirostris, Parapenaeopsis tenellus, Rhynchocinetes uritai and Matapenaeus joyneri. And their fishing rate and total length range were 50.0%, 46.0%, 2.6%, 0.4%, 0.3%, 0.3% and 40-80mm, 40-80mm, 120-150mm, 60-80mm, 60-80mm, 60-120mm respectively. Bycatches caught by the shrimp beam trawl consisted of fishes of 30 kinds, 6 kinds of mollusk, 5 kinds of shellfishes and 3 kinds of crabs. The main fish was Engraulis japonicus, Platycephalus indicus, Paralichthys olivaceus, Leiognathus nuchalis and Conger myriaster, their occupied rate were 47.0%, 16.6%, 13.6%, 5.5%, 2.7% respectively, and their total length range were 60-150mm, 80-410mm, 80-600mm, 30-80mm and 150-460mm respectively. A number bycatch rates of shrimp beam trawl fishery were 99.7% in Buan, 60.0% in Kangjin, 14.6% in Boryeong, 10.6% in Tongyeong and 2.7% in Geoje, The weight bycatch rate were 99.9% in Buan, 75.1% in Kangjin, 57.1% in Tongyeong, 47.4% in Boryeong and 15.4% in Geoje.

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韩国近海虾梁拖网渔业渔获量分析

为了研制虾梁拖网渔业的选择性渔具，进行了虾梁拖网试验捕捞作业，调查副渔获物。2005年4月30日至11月13日，在保宁、扶安、康津、统营和巨济的沿海海域用原型渔具进行了试验拖网捕捞。分析了实验拖网副渔获物的种类组成、总长度组成。所得结果可总结如下:对虾梁拖网捕获的目标鱼有:古虾、鹤尾虾、曲状虾、细尾虾、乌氏盘尾虾和乔氏盘尾虾。捕捞率和总长度范围分别为50.0%、46.0%、2.6%、0.4%、0.3%、0.3%和40-80mm、40-80mm、120-150mm、60-80mm、60-80mm、60-120mm。捕虾梁拖网副渔获物包括鱼类30种，软体动物6种，贝类5种，蟹类3种。主要鱼类为日本褐虾、indicus Platycephalus、palichthys olivaceus、leognathus nuchalis和Conger myriaster，占比分别为47.0%、16.6%、13.6%、5.5%和2.7%，总体长范围分别为60 ~ 150mm、80 ~ 410mm、80 ~ 600mm、30 ~ 80mm和150 ~ 460mm。其中，扶安、康津、保宁、统营和巨济的副渔获率分别为99.7%、60.0%、14.6%、10.6%和2.7%，重副渔获率分别为99.9%、75.1%、57.1%、47.4%和15.4%。

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Bulletin of The Korean Society of Fisheries Technology

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