2003年春季东海区浮性鱼卵和仔稚鱼种类组成及数量分布

The species composition and quantity distribution of pelagic eggs, fish larvae and juveniles in the East China Sea region in spring 2003

本文分析研究了2003年春季东海区(27°00′～34°00′N)150m以浅海域浮性鱼卵、仔稚鱼的种类组成及数量分布。共鉴定49种鱼类的鱼卵、仔稚鱼,其中31种鉴定到种,隶属于26科、29属。优势种类为日本鳀、方氏云鳚、太平洋鲱。带鱼、小黄鱼等经济鱼类鱼卵、仔稚鱼数量少,鲱形目鱼类鱼卵、仔稚鱼数量较多。鱼卵、仔稚鱼分布主要在近海禁渔线附近海域。

The paper studied the species composition and quantity distribution of pelagic eggs, fish larvae and juveniles in the East China Sea region(27°00′- 34°00′N) up to depths of 150m in spring 2003. Among 49 species of eggs and larvae collected in April 2003, 31 were identified as species, belonging to 29 genera, and 26 families. The dominant species were Engraulis japonicus, Enedrias fangi and Clupea pallasii. The eggs, larvae and juveniles of the commercial fishes such as Pseudosciaena polyactis and Trichiurus haumela were rare whereas those of the order Clupeiformes fishes were more abundant. Pelagic eggs, fish larvae and juveniles distribute mainly around the closed-fishing line in the East China Sea.