摘要
根据1996-2009年对浙江海洋捕捞作业方式的调查监测数据及生物学取样和测定数据,结合渔业统计资料,运用体长股分析法(LCA,Length based Cohort Analysis)和最大持续渔获量模型(Schaefer模型和Fox模型),分别对银鲳的资源量和小黄鱼的最大持续渔获量(MSY)进行估算。计算结果为:2005-2006东海区银鲳的平均资源量(扣除叉长130 mm以下幼鱼)为1 374.77×106尾、19.38×104t,初始资源量(最大资源量)为2 609.20×106尾、36.79×104t,最大持续渔获量为14.4×104t。以1996-2009年帆张网和2001-2009年双拖网的监测资料,按Schaefer模型和Fox模型分别估算的东海区小黄鱼最大持续渔获量(MSY)为12.96×104～14.08×104(t平均13.35×104t)。
Silvery pomfret （Pampus argenteus） and small yellow croaker （Pseudosciaena polyactis） are key fish species of fishery resources. Their catch were more than 18×10^4 t and 12×10^4 t respectively in recent years in the East China Sea. This paper based on the biological data and the monitoring data of stow nets and Pair trawl in Zhejiang province from 1996 to 2009, according to piscatorial statistic data, biomass estimates of sil- very pomfret and MSY of small yellow croaker were calculated respectively by LCA（Length based Cohort Anal- ysis） and model of maximum sustainable catch. The results showed that the average biomass of silve/y pomfret from 2005 to 2006 was 19.38×10^4 t, 13.75×10^4 ind. and the maximum biomass was 36.79×10^4t, 26.09×10^4 ind. MSY of small yellow croaker was 12.96×10^4-14.08×10^4t（average 13.35×10^4t.
出处
《浙江海洋学院学报（自然科学版）》
CAS
2013年第1期1-5,共5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
2012F30015
2009F30003
2010F30001
2011F30001)
浙江省海洋与渔业局科研项目(浙海渔计[2008]130号)
关键词
资源量
最大持续渔获量
鲳鱼
小黄鱼
东海
MSY
biomass estimates
silvery pomfret
small yellow croaker
East China sea
