东海刺鲳资源状况及数量分布  

The resource status and biomass distribution of wart perch Psenopsis anomala in the East China Sea

作　　者：胡芬[1] 严利平[1] 

机构地区：[1]中国水产科学研究院东海水产研究所农业部海洋与河口渔业重点开放实验室,上海200090

出　　处：《海洋渔业》2006年第2期99-104,共6页Marine Fisheries

基　　金：农业部近海渔业资源调查专项

摘　　要：本文利用2001-2005年东海区底层拖网调查资料，分析了东海刺鲳的资源状况和数量分布。结果表明，东海刺鲳近年来资料数量稳定而且缓慢增长，2001-2005年平均资源密度为1.49kg/h，从数量分布来看，8、9月是刺鲳分布范围最广、资源密度是最高的月份，主要分布海域为鱼山、江外和长江口渔场。分析4个季节刺鲳的分布水深变化情况表明，主要分布水深为50-90m，刺鲳分布具有季节移动现象，夏季最靠近近海，刺鲳的群体结构不稳定，以幼鱼和1龄鱼为主。Based on the professional bottom trawl monitoring data in the East China Sea from 2001 to 2005, the resource status and biomass distribution of wart perch Psenopsis anomala were primarily analyzed. The results show that the abundance of Psenopsis anomala has kept steady and increased slowly in recent years. The mean CPUE was 1.49kg/h in 2001 -2005. The highest CPUE and biggest distribution area appeared in autumn from Aug to Sep,which were mostly on Yusan, Jiangwai and Changjiang estuary fishing grounds. The analysis of seasonal changes of the depth of wart perch indicated that they mostly inhabited 50 - 90m in depth and migrated seasonally to inshore in summer. The stock structure of Psenopsis anomala was not stable and mainly composed of the young fish and yearlings.

关 键 词：刺鲳 资源状况 数量分布 东海 水产资源 

分 类 号：S937[农业科学—渔业资源]