应用体长股分析法估算东海区日本鲭资源量  

Biomass Estimates of Scomber japonicus Calculated by LCA in the East China Sea

作　　者：周永东[1] 张洪亮[1] 徐汉祥[1] 潘国良[1] 

机构地区：[1]浙江海洋学院海洋与渔业研究所,浙江省海洋水产研究所,浙江舟山316100

出　　处：《浙江海洋学院学报（自然科学版）》2011年第2期91-94,共4页Journal of Zhejiang Ocean University(Natural Science Edition)

基　　金：国家科技支撑计划项目(2007BAD43B01);浙江省科技计划项目(2007F10007;2008F40002);浙江省海洋与渔业局科研项目(浙海渔计[2008]130)

摘　　要：根据浙江省海洋水产研究所2004-2005年对浙江群众近海灯光围网和外海机轮围网作业生产的监测调查数据,结合渔业统计资料,用体长股分析法对东海区日本鲭的资源量进行了估算。结果表明:日本鲭的自然死亡系数M=0.295,捕捞死亡系数F=1.6;东海区日本鲭的平均资源尾数为31.73×108 ind,折合资源重量为18.27×104 t,最大持续产量(MSY)为12.27×104 t;初始(最大)资源量为70.87×108 ind,折合资源重量为40.81×104 t。Based on the monitoring data of lamp purse seines fisheries in Zhejiang province and according to piscatorial statistic data from 2004 to 2005,biomass estimates of Scomber japonicus in the East China Sea were calculated by LCA（Length based Cohort Analysis）.The results showed that natural mortality was M=0.295,fishing mortality was F=1.6,the average biomass of S.japonicus from 2004 to 2005 was 18.27×104 t,31.73×108 ind,maximum sustainable yield（MSY） was up to 12.27×104 t,and the maximum biomass was 40.81×104 t,70.87×108 ind.

关 键 词：东海 日本鲭 资源量 最大持续产量 

分 类 号：S932.4[农业科学—渔业资源]