摘要
根据2008—2020年渔港渔业生产抽样调查数据,开展了南海北部刺鲳(Psenopsis anomala)资源的评估,并采用剩余产量模型对12个单位捕捞努力量渔获量(CPUE)数据进行分析。统计结果表明,南海北部的刺鲳捕捞方式主要为拖网和刺网,分别占其产量组成的40.52%和53.14%。平衡Schaefer模型计算的最大可持续产量(MSY)为47402.96 t,平衡Fox模型计算的MSY为36739.93 t,非平衡Schaefer模型计算的MSY为29198.74 t。双拖400 kW以上、单拖100~200 kW、刺网50 kW以下等作业方式与功率段的捕捞努力量投入过度,其他的则未发生过度捕捞,资源利用总体处于安全水平。综合推断总可捕量可设定为2.8×104~3.2×104 t。
According to the stratified sampling survey data of fishery production from fishing ports along the northern South China Sea from 2008 to 2020,the biomass of P.anomala was assessed.The production of P.anomala mainly consisted of trawl net and gill net,accounting for 40.52%and 53.14%of the total catch,respectively.Twelve CPUE data were analyzed by surplus production models.The maximum sustainable yield was 47402.96 tons inferred by equilibrium Schaefer model.The maximum sustainable yield was 36739.93 tons inferred by equilibrium Fox model.The maximum sustainable yield was 29198.74 tons inferred by non-equilibrium Schaefer model.Fishing effort exceeded the maximum sustainable level in double trawl with mainpower above 400 kW,single trawl with mainpower of 100~200 kW and gillnet with mainpower below 50 kW.Overfishing did not occur,and the utilization level was not beyond the optimum level in other fishing methods and mainpower segment.The total allowable catch of P.anomala is comprehensively set within 28~32 thousand tons in the northern South China Sea at present.
作者
尹元一
章丽娟
廖东昇
李璐
谢文锋
冯波
YIN Yuanyi;ZHANG Lijuan;LIAO Dongsheng;LI Lu;XIE Wenfeng;FENG Bo(Fisheries College,Guangdong Ocean University,Zhanjiang 524088,China;Southern Marine Science and Engineering Guangdong Laboratory(Zhanjiang),Zhanjiang 524025,China;Guangdong Provincial Far Sea Fisheries Management and Fishing Engineering Technical Research Center,Zhanjiang 524088,China)
出处
《渔业研究》
2023年第4期365-371,共7页
Journal of Fisheries Research
基金
广东海洋大学大学生创新创业训练计划项目(CXXL2023017)
国家重点研发计划(2018YFD0900906)。
关键词
刺鲳
南海北部
剩余产量模型
最大可持续产量
Psenopsis anomala
the northern South China Sea
surplus production model
maximum sustainable yield
作者简介
尹元一(2003-),男,本科生,研究方向为渔业资源评估。E-mail:1263953588@qq.com;通信作者:冯波(1977-),男,副教授,研究方向为海洋渔业开发与保护。E-mail:fengb@gdou.edu.cn。
