| Uncertainties in Stock Assessment and the Precautionary Management Suggestions for the Anchovy （Engraulisjaponicus） Stock in the Yellow Sea |
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| 作者姓名： | WANG Yanjun LIU Qun MA Yuxia |
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| 作者单位： | WANG Yanjun1)，LIU Qun1)，and MA Yuxia2) 1) College of Fisheries，Ocean University of China，Qingdao 266003，P. R. China 2) Bureau of Ocean and Fisheries of Jimo，Qingdao 266200，P. R. China |
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| 基金项目： | 国家重点基础研究发展计划(973计划);国家自然科学基金 |
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| 摘 要： | Anchovy(Engraulis japonicus) is an abundant fish species in the Yellow Sea,and its natural stock is decreasing rapidly in recent years. Based on the stock-recruitment(SR) data from 1987 to 2002 published in Zhao et al.(2003),the criterion BIC(Bayesian Information Criterion) is applied to selecting a suitable model from six normal and lognormal error structured SR statisti-cal models,the age-structured model is used to calculate the biological reference points(BRPs),and the precision of the SR parame-ters and BRPs are calculated using bootstrap method. The results indicate that the anchovy fishery resource in the Yellow Sea is in an over-fished state. The precaution management principle requires that the fishery should be closed immediately.
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| 关 键 词： | 生物学标准 群体评估 凤尾鱼 海洋生物 |
| 收稿时间： | 16 May 2006 |
| 修稿时间： | 2006-05-162007-01-05 |
Uncertainties in stock assessment and the precautionary management suggestions for the anchovy (<Emphasis Type="Italic">Engraulis japonicus</Emphasis>) stock in the Yellow Sea |
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| WANG Yanjun LIU Qun MA Yuxia.Uncertainties in stock assessment and the precautionary management suggestions for the anchovy (Engraulis japonicus) stock in the Yellow Sea[J].Journal of Ocean University of China,2007,6(3):268-274. |
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| Authors: | Wang Yanjun Liu Qun Ma Yuxia |
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| Institution: | 1. College of Fisheries, Ocean University of China, Qingdao 266003, P. R. China
2. Bureau of Ocean and Fisheries of Jimo, Qingdao 266200, P. R. China |
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| Abstract: | Anchovy(Engraulis japonicus) is an abundant fish species in the Yellow Sea,and its natural stock is decreasing rapidly in recent years. Based on the stock-recruitment(SR) data from 1987 to 2002 published in Zhao et al.(2003),the criterion BIC(Bayesian Information Criterion) is applied to selecting a suitable model from six normal and lognormal error structured SR statisti-cal models,the age-structured model is used to calculate the biological reference points(BRPs),and the precision of the SR parame-ters and BRPs are calculated using bootstrap method. The results indicate that the anchovy fishery resource in the Yellow Sea is in an over-fished state. The precaution management principle requires that the fishery should be closed immediately. |
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| Keywords: | stock assessment biological reference points (BRPs) uncertainties precautionary approach anchovy stock (Engraulis japonicus) Yellow Sea |
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