胶州湾外南沙水域渔业资源与文昌鱼数量调查评估及其栖息环境保护

Fisheries resources and lancelet (Branchiostoma belcheri Gary) abundance survey asssessment and their perch environment protection in the Nansha waters of Jiaozhou Bay outside

应用扫海面积法 ,并根据鱼类和文昌鱼栖息特点 ,采用了不同拖网取样方式 ,对胶州湾外南沙周围 2 4km2 水域 5、6月渔业资源数量与文昌鱼 (BranchiostomabelcheriGary)数量进行了调查评估。5月捕获的鱼类共 2 8种 ,总资源量 2 75 479kg ,其中玉筋鱼居第 1位 ,资源量 2 65 2 0 0kg。捕获的无脊椎动物共 1 3种 ,总资源量 3 489kg。6月文昌鱼数量约为 1 872 0 0 0 0尾。同时 。

Fisheries resource abundance & lancelet abundance in May and June alo ng about 24km 2 waters of Nansha of Jiaozhou Bay outside was surveyed and ass ess ed by using sweeping area method ,of which a sample was taken by different net a ccording to their perch water layer. Twenty-eight species in the fish were catc he d, and total resource abundances are 275 479 kg, among them the Ammodytes per sonatus abundance stands first on the list, which is 265 200 kg. Thirteen spe cies in the invertebrate were catched, total resource abundances are 3 489 kg. lancelet abu ndance is 18 720 000. At the same time,perch environment problem and imp ortance of protecting the environment were pointed out.