지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2015.1
- 수록면
- 535 - 544 (10page)
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Yield per recruit model is the most popular method for fisheries stock assessment. However, stock assessment using yield per recruit model can lead to recruitment overfishing as this model only considers the maximum yield per recruit without spawning biomass for reproduction. For this reason, spawning biomass per recruit model which reveals variations of spawningstock biomass per fishing mortality (F) and age at first capture (tc) is considered as more proper method for stock assessment. There are mainly two methods for spawning biomass per recruit model known as age specific selectivity method and knife–edged selectivity method. In the knife–edged selectivity method, the spawning biomass per recruit has been often calculated using biomass per recruit value by multiplying the maturity ratio of the recruited age. But the maturity ratio in the previous method was not considered properly in previous studies. Therefore, a new method of the knife–edged selectivity model was suggested in this study using a weighted average of the maturity ratio for ages from the first capture to the lifespan. The optimum fishing mortality in terms of F35% which was obtained from the new method was compared to the old method for small yellow croaker stock in Korea. The value of F35% using the new knife–edged selectivity model was 0.302/year and the value using the old model was 0.349/year. However, the value of F35% using the age specific selectivity model was estimated as 0.320/year which was closer to the value from the new knife–edged selectivity model.
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등록된 정보가 없습니다.
참고문헌 (22)
참고문헌 신청
Beverton RJH / 1957 / On the Dynamics of Exploited Fish Populations, Fishery Investigations, Series Ⅱ, Marine Fisheries / Great Britain, Great Britain Ministry of agricultur
Choi YM / 2004 / Stock assessment and management implications of chub mackerel,Scomber japonicus in Korean Waters / J Kor Soc Fish Res 6 (2) : 90 ~ 100
Kvamme C / 2007 / The effect of including length structure in yield?per?recruit estimates for Northeast Arcticcod / ICES J Mar Sci 64 : 357 ~ 368
Lee MW / 2000 / Age determination and estimation of growth parameters using otoliths of small yellow croaker, Pseudosciaena polyactis Bleeker in Korean Waters / Bull. Kor So
Park YC / 2002 / Growth and carrying capacity of pacific oyster, crassopstrea gigas, in Kamak Bay, Korea / Korean J Environ Biol 20 (4) : 378 ~ 385
Choi YM / 2004 / Stock assessment and management implications of chub mackerel,Scomber japonicus in Korean Waters / J Kor Soc Fish Res 6 (2) : 90 ~ 100
Kvamme C / 2007 / The effect of including length structure in yield?per?recruit estimates for Northeast Arcticcod / ICES J Mar Sci 64 : 357 ~ 368
Lee MW / 2000 / Age determination and estimation of growth parameters using otoliths of small yellow croaker, Pseudosciaena polyactis Bleeker in Korean Waters / Bull. Kor So
Park YC / 2002 / Growth and carrying capacity of pacific oyster, crassopstrea gigas, in Kamak Bay, Korea / Korean J Environ Biol 20 (4) : 378 ~ 385
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