Application of CEDA and ASPIC computer packages to the hairtail (Trichiurus japonicus) fishery in the East China Sea  

作　　者：王玉 刘群 

机构地区：[1]Department of Fisheries,Ocean University of China

出　　处：《Chinese Journal of Oceanology and Limnology》2013年第1期92-96,共5页中国海洋湖沼学报（英文版）

基　　金：Supported by the Special Research Fund of Ocean University of China(No. 201022001)

摘　　要：Surplus-production models are widely used in fish stock assessment and fisheries management due to their simplicity and lower data demands than age-structured models such as Virtual Population Analysis. The CEDA (catch-effort data analysis) and ASPIC (a surplus-production model incorporating covariates) computer packages are data-fitting or parameter estimation tools that have been developed to analyze catch-and-effort data using non-equilibrium surplus production models. We applied CEDA and ASPIC to the hairtail (Trichiurus japonicus) fishery in the East China Sea. Both packages produced robust results and yielded similar estimates. In CEDA, the Schaefer surplus production model with log-normal error assumption produced results close to those of ASPIC. CEDA is sensitive to the choice of initial proportion, while ASPIC is not. However, CEDA produced higher R 2 values than ASPIC.Surplus-production models are widely used in fish stock assessment and fisheries management due to their simplicity and lower data demands than age-structured models such as Virtual Population Analysis. The CEDA （catch-effort data analysis） and ASPIC （a surplus-production model incorporating covariates） computer packages are data-fitting or parameter estimation tools that have been developed to analyze catch-and-effort data using non-equilibrium surplus production models. We applied CEDA and ASPIC to the hairtail （Trichiurusjaponicus） fishery in the East China Sea. Both packages produced robust results and yielded similar estimates. In CEDA, the Schaefer surplus production model with log-normal error assumption produced results close to those of ASPIC. CEDA is sensitive to the choice of initial proportion, while ASPIC is not. However, CEDA produced higher R2 values than ASPIC.

关 键 词：surplus production model Trichiurus japonicus catch-effort data analysis （CEDA） ASPIC sensitivity analysis 

分 类 号：S932.4[农业科学—渔业资源]