Impacts of distorted fishery statistical data on assessments of three surplus production models |
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| Authors: | Yingbin Wang Ji Zheng Zheng Wang |
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| Institution: | WANG Yingbin1,**,ZHENG Ji1,WANG Zheng2 1Fishery School of Zhejiang Ocean University,Zhoushan 316004,China 2School of Mechanical and Electrical Engineering of Zhejiang Ocean University,China |
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| Abstract: | We evaluated the effect of various error sources in fishery harvest/effort data on the maximum sustainable yield(MSY) and corresponding fishing effort(EMSY) using Monte Carlo simulation analyses.A high coefficient of variation(CV) of the catch and effort values biased the estimates of MSY and EMSY.Thus,the state of the fisheries resource and its exploitation was overestimated.We compared the effect using three surplus production models,Hilborn-Waters(H-W),Schnute,and Prager models.The estimates generated us... |
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| Keywords: | distorted data Monte Carlo simulation error stock assessment |
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