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An evaluation of marine protected areas considering the seasonal migration of fish: An examination for red sea bream Pagrus major and yellow croaker Larimichthys polyactis in the East China Sea and the Yellow Sea

, : An evaluation of marine protected areas considering the seasonal migration of fish: An examination for red sea bream Pagrus major and yellow croaker Larimichthys polyactis in the East China Sea and the Yellow Sea. Nippon Suisan Gakkaishi 68(5): 685-694

To evaluate the effectiveness of marine protected areas (MPAs), we analyzed an age-structured model. We estimated the possible range of migration parameters based on the seasonal change in CPUE distribution during 1954 and 1956, and we obtained the expected range of YPR and SPR as functions of the size of MPA, fishing mortality coefficient and age at first capture. As a result, we concluded that MPA is effective in reducing the decrease of YPR and SPR in a high fishing mortality regime at low age at first capture. The difference of migration rate of fish influences the effectiveness of MPA containing about half of the stock of both species all year round. Thus, the accurate estimation of migration of fish not based only on information of seasonal change in CPUE distribution is required to design an effective MPA.


DOI: 10.2331/suisan.68.685

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