Assessing the Fishery Resource Status of China's Coastal Waters Using Surplus Production Models

• 作者: ZHANG Qingqing LIU Qun HAN Ya'nan
• 来源期刊: 中国海洋大学学报（自然科学英文版）
• 年，卷（期）: 2021,（5）
• 所属期刊栏目: Life and Fisheries Sciences
• 页码范围: 1236-1244
• 页数: 9页
• 语种: 英文

摘要

Surplus production models (SPMs) are among the simplest and most widely used fishery stock assessment models.The catch-effort data analysis (CEDA) and a surplus production model incorporating covariates (ASPIC) are softwares for analyzing fishery catch and fishing effort data using nonequilibrium SPMs.In China Fishery Statistical Yearbook,annual fishery production and fishing effort data of the Yellow Sea,Bohai Sea,East China Sea,and South China Sea have been published from 1979 till present.Using its catch and fishing effort data from 1980 to 2018,we apply the CEDA and ASPIC to evaluate fishery resources in Chinese coastal waters.The results show that the total maximum sustainable yield (MSY) estimate of the four China seas is 10.05-10.83 mil-lion tons,approximately equal to the marine fishery catch (10.44 million tons) reported in 2018.It can be concluded that China's coastal fishery resources are currently fully exploited and must be protected with a precautionary approach.Both softwares produced similar results;however,the CEDA had a much higher R2 value (above 0.9) than ASPIC (about 0.2),indicating that CEDA can better fit the data and therefore is more suitable for analyzing the fishery resources in the coastal waters of China.