Application of a catch-based method for stock assessment of three important fisheries in the East China Sea  

作　　者：ZHANG Kui ZHANG Jun XU Youwei SUN Mingshuai CHEN Zuozhi YUAN Meng 

机构地区：[1]South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences [2]Key Laboratory of Open-Sea Fishery Development, Ministry of Agriculture

出　　处：《Acta Oceanologica Sinica》2018年第2期102-109,共8页海洋学报（英文版）

基　　金：The National Natural Science Foundation of China under contract No.31602157;the Special Fund for Agroscientific Research in the Public Interest under contract No.201403008;the Central Public-interest Scientific Institution Basal Research Fund of South China Sea Fisheries Research Institute under contract No.2016TS06

摘　　要：Most fisheries in China do not have maximum sustainable yield（MSY） estimates due to limited and poor data.Therefore, finding a common method to estimate MSY or total allowable catch（TAC） for fishery management is necessary. MSYs of three important fisheries in the East China Sea were evaluated through a catch-based model.Estimates for intrinsic rate of increase（r） and five levels of process error were considered. Results showed hairtail Trichiurus japonicas（Temminck and Schlegel） and small yellow croaker Larimichthys polyactis（Bleeker） fisheries experienced overfishing from the mid-1990 s to the early 2000 s, and the suggested TACs were 55.8×10^4 t and9.06×10^4 t, respectively. Decades of overfishing in wintering and spawning grounds of large yellow croaker Larimichthys crocea（Richardson） caused the fishery＇s collapse in the 1980 s, and it has not recovered until today.The Catch–MSY model generated similar estimated MSYs with other methods and may be a useful choice for the assessment of regional stocks in China.Most fisheries in China do not have maximum sustainable yield（MSY） estimates due to limited and poor data.Therefore, finding a common method to estimate MSY or total allowable catch（TAC） for fishery management is necessary. MSYs of three important fisheries in the East China Sea were evaluated through a catch-based model.Estimates for intrinsic rate of increase（r） and five levels of process error were considered. Results showed hairtail Trichiurus japonicas（Temminck and Schlegel） and small yellow croaker Larimichthys polyactis（Bleeker） fisheries experienced overfishing from the mid-1990 s to the early 2000 s, and the suggested TACs were 55.8×10^4 t and9.06×10^4 t, respectively. Decades of overfishing in wintering and spawning grounds of large yellow croaker Larimichthys crocea（Richardson） caused the fishery＇s collapse in the 1980 s, and it has not recovered until today.The Catch–MSY model generated similar estimated MSYs with other methods and may be a useful choice for the assessment of regional stocks in China.

关 键 词：Catch-MSY model fisheries in the East China Sea intrinsic rate of increase maximum sustainable yield overfishing 

分 类 号：F326.4[经济管理—产业经济]