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흑산도 근해연승어업의 참홍어 (Raja pulchra) 어획 특성
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  • 흑산도 근해연승어업의 참홍어 (Raja pulchra) 어획 특성
저자명
조현수,황학진,권대현,정경숙,최광호,차병열,임양재,Jo. Hyun-Su,Hwang. Hak-Jin,Kwon. Dae-Hyeon,Jeong. Gyeong-Suk,Choi. Kang-Ho,Cha. Byung-Yeul,Im. Yang-
간행물명
한국어업기술학회지
권/호정보
2011년|47권 4호|pp.403-410 (8 pages)
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한국어업기술학회
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
서지반출

기타언어초록

Catches, CPUE, fishing season, disc width composition and fishing ground were studied to rebuild skate ray, Raja pulchra resource by the offshore longline fishery in Heuksan-do, Korea. Annual catches and CPUE of skate ray were increased from 2003 to 2010 (CPUE: from 2007 to 2010) continuously. The main fishing season of the skate ray was from December to next May. Disc width at 50% maturity for Raja pulchra by sex were estimated to be 65.83cm, 57.01cm by female and male respectively. The range of disc width was 22.3-112.0cm and the average disc width was 66.9cm, 60.0cm by female and male of Raja pulchra respectively during 2007-2010. Annual average of disc width of female skate ray was decreased from 2007 to 2010. The fishing grounds were formed from the coastal water off Hong-do to the coastal water off Gyeogyeolbiyeol-do, Korea. The center of fishing ground in October was formed in the northwestern coastal water off Gyeogyeolbiyeol-do and separated from that of the other months.