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한국연안해역 새우조망어업의 부수어획에 대한 분석

An Analysis on Bycath of the Shrimp Beam Trawl Fishery in Korea Coast Sea,

조윤형 (Cho, Youn Hyoung)

원문보기

  • 발행기관 경상대학교 대학원
  • 지도교수 장충식
  • 발행년도 2006
  • 학위수여년월 2006. 2
  • 학위명 석사
  • 소속대학원 및 학과 대학원 해양생산공학과
  • 전공 해양생산시스템공학전공
  • 본문언어 한국어
초록/요약moremore
Experimental fishing operation by the shrimp beam trawl were 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, Tongyeon...
Experimental fishing operation by the shrimp beam trawl were 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 was analyzed species composition, total length composition and resource density. The results obtained can be summarized as follows; 1. Target fishes caught by the shrimp beam trawl were Palaemon gravieri, Crangon Hakodatei, Trachysalambria curvirostris, Parapenaeopsis tenellus, Rhynchocinetes uritai,, Matapenaeus joyneri and it's fishing rate and total length range was 50.0, 46.0, 2.6, 0.4, 0.3, 0.3% and 40~80, 40~80, 120~150, 60~80, 60~80, 60~120mm respectively. 2. Bycatches caught by the shrimp beam trawl consisted of fishes of 30 kinds, 6 kinds of mollusk, 5 kinds of shellfishes and crabs of 3 kinds. The main fish was Engraulis japonicus, Platycephalus indicus, Paralichthys olivaceus, Leiognathus nuchalis and Conger myriaster, it's occupy rate was 47.0, 16.6, 13.6, 5.5, 2.7% respectively, and it's total length range was 60~150, 80~410, 80~600, 30~80 and 150~460mm respectively. 3. A number bycatch rate of shrimp beam trawl fishery was 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 was 99.9% in Buan, 75.1% in Kangjin, 57.1% in Tongyeong, 47.4% in Boryeong and 15.4% in Geoje. 4. Shrimp density of a classified fishing ground was 0.66 in Geoje, 0.09 in Boryeong, 0.04 in Tongyeong, 0.01 in Kangjin and 0.0001 in Buan respectively.
목차moremore
Ⅰ. 서 론 1
Ⅱ. 재료 및 방법 4
1. 시험어구 및 어선 4
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Ⅰ. 서 론 1
Ⅱ. 재료 및 방법 4
1. 시험어구 및 어선 4
2. 실험방법 8
Ⅲ. 결 과 13
1. 목적어의 종 조성 및 체장 조성 13
2. 부수어획물의 종 조성 및 체장 조성 17
3. 어장의 자원밀도 27
Ⅳ. 고 찰 29
Ⅴ. 요 약 36
Ⅵ. 참고문헌 38