东海外海钓带群体生物学组成

The Biological Composition of Hairtail Stocks Conducted by Lining in the Offlying Sea of the East China Sea

前言东海外海是我国东海带鱼主要越冬场,同时也是夏秋汛外海带鱼产卵场之一,也是福建省转浙钓带秋冬汛生产的主要渔场,占总产量的65～92%.据1986～1988年8～12月连续三年共测定东海外海钓带样本3200尾.肛长组成范围为180～480毫米,平均肛长293.2毫米,优势肛长240～320毫米。

Abstract Based on the examination of the biology of hairtail stocks conducted by lining in the offlying sea of the East China Sea in 1986-1988,the author considered that the average length,the everage weight and the average age decreased year by year in the hairtail stocks conducted by lining in the offlying set of the East China Sea,which accounted for the main sign of the depletion of the stock.