东海黄海头足类资源量的评估

本文用1996年、1997年浙江温岭渔7515、754两艘单拖渔轮的调查资料,采用资源密度面积法,对26°30′～30°00′N122°～126°30′E、20～150m水深海区的头足类的资源量进行评估。评估结果是:调查海区头足类资源量1996年为29055.84t,其中太平洋褶柔鱼为353.36t,剑尖枪乌贼为10734.10t,乌贼类为12384.9t,章鱼为5583.45t;1997年为35004.52t,其中太平洋褶柔鱼为1176.04t,剑尖枪乌贼为20511.30t,乌贼类为9658.50t,章鱼为3658.69t。东海区头足类资源量1996年为131747.81t,其中太平洋褶柔鱼为1602.24t,剑尖枪乌贼为48671.60t,乌贼类为56157.00t,章鱼为25317.02t;1997年为189441.07t,其中太平洋褶柔鱼为6364.61t,剑尖枪乌贼为111005.17t,乌贼类为52270.87t,章鱼为19800.48t。

Stock Assessment of Cephalopoda in East China Sea and Yellow Sea

Based on the survey data of two fishing vessels in 1996 and 1997, this paper assessed the cephalopoda abundance in the waters of East China Sea and Yellow Sea (26°30' - 30°00'N, 122°00' -126°30'E, with depth 20 - 150m) by using Resource Density Area Method. The result showed that in 1996, the cephalopoda abundance in the surveyed waters was 29055.84t, and Todarodes pacificus , Loligo edulis, cuttlefish and octopus were 353. 36t, 10734. 10t, 12384. 9t and 5583. 45t respectively; in 1997, the cephalopoda abundance was 35004. 52t, and Todarodes pacificus, Loligo edulis, cuttlefish and octopus were 1176.04t,20511.30t,9658.50t and 3658.69t respectively. In the East China Sea in 1996, the cephalopoda abundance was 131747. 81t, and Todarodes pacificus, Loligo edulis, cuttlefish and octopus were 1602. 24t, 48671. 60t, 56157. 00t and 25317. 02t respectively; in 1997 , the cephalopoda abundance was 189441.07t, and Todarodes pacificus , Loligo edulis , cuttlefish and octopus were 6364.61t, 111005.17t, 52270.87t and 19800.48t respectively.