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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2015.1
- 수록면
- 171 - 178 (8page)
이용수
초록· 키워드
오류제보하기
Selectivity and by-catch are the main features used to define fish catch for fisheries management or to determine fishing gear efficiency. A fish girth distribution analysis was carried out to determine the retention rate of juveniles discarded and to establish common selectivity for a multispecies catch. Total body length, body weight, and girth of juvenile fish retained in the cod-end and cover net separately were collected using an 18-mm mesh cover net during 12 fishing trials with a 41-mm cod-end beam trawl. The by-catch weight ratio in the cod-end was twice that of the by-catch ratio in number. The 50% selectivity of body length and 50% girth of redfin velvet fish were not significantly different between the cod-end and cover net, whereas those of other fish species were significantly different between the cod-end and cover net. The difference in 50% selectivity girth of other fish between the cod-end and cover net was similar between cod-end mesh size and cover net mesh size. Furthermore, the difference in 50% body length selectivity of other fish between the cod-end and cover net was almost double the difference in girth. Girth selectivity in a multispecies catch using towed fishing gear was effectively used to determine fish and net mesh size.
목차
등록된 정보가 없습니다.
참고문헌 (19)
참고문헌 신청
Chopin F / 2009 / The development of international guidelines on bycatch management and reduction of discards / ICES CM 2009/M:01 : 21 ~ 25
Deval MC / 2006 / Selectivity of PE and PA material codends for rose shrimp (Parapenauslongirostris) in Turkish twin rigged beam trawl fishery / Fish Res 81 : 72 ~ 79
Herrmann B. / 2005 / Effect of catch size and shape on the selectivity of diamond mesh cod-ends: I. Model development / Fish Res : 1 ~ 13
Ingolfsson OA / 2011 / The effect of forced mesh opening in the upper panel of a Nephrops trawl on size selection of Nephrops, haddock and whiting / Fish Res 108 : 218 ~ 222
Kurkilahti M / 2002 / Effect of fish shape on gillnet selectivity: a study with Fulton’s condition factor / Fish Res 54 : 153 ~ 170
Deval MC / 2006 / Selectivity of PE and PA material codends for rose shrimp (Parapenauslongirostris) in Turkish twin rigged beam trawl fishery / Fish Res 81 : 72 ~ 79
Herrmann B. / 2005 / Effect of catch size and shape on the selectivity of diamond mesh cod-ends: I. Model development / Fish Res : 1 ~ 13
Ingolfsson OA / 2011 / The effect of forced mesh opening in the upper panel of a Nephrops trawl on size selection of Nephrops, haddock and whiting / Fish Res 108 : 218 ~ 222
Kurkilahti M / 2002 / Effect of fish shape on gillnet selectivity: a study with Fulton’s condition factor / Fish Res 54 : 153 ~ 170
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