舟山渔场普陀山附近海域鱼类种类组成和数量分布

The species composition and distribution characteristics of fish in the waters nearby Putuo mountain of Zhoushan fishing ground

根据2014年5月(春季)和2014年10月(秋季)在舟山渔场普陀山附近海域开展渔业资源底拖网调查所获得的资料,分析研究了该海域的鱼类种类组成和数量时空分布。结果表明:普陀山附近海域春、秋两季鱼类有51种,隶属于11目24科43属。其中,春季鱼类有39种,隶属于11目24科34属;秋季鱼类有34种,隶属于8目16科30属,春、秋两季共有种22种。优势种为棘头梅童鱼、鮸、六丝钝尾鱼鰕虎鱼、龙头鱼,其中棘头梅童鱼、鮸、六丝钝尾鰕虎鱼为春季优势种类,龙头鱼为秋季优势种类。根据鱼类的生态习性分析得知,分布在本次调查海域的鱼类以广温广盐种类为主;春、秋季均是普陀山海域经济幼鱼的主要繁育、生长期。

In the May 2014 （ spring） and October 2014 （ autumn） , the fish species composition and quanti-ty distribution of fish in the sea area were analyzed by using the data obtained from the survey on bottom trawl fishery resources carried out in the area near the Mount Putuo in Zhoushan. The results showed that there were 51 species of fish in the two seasons of the spring and autumn in the waters near Mount Putuo, belonging to 11 orders, 24 families and 43 genera. Among them, there are 39 species of fish in spring, belonging to 11orders, 24 families and 34 genera, 34 species of fish in autumn, belonging to 8 orders, 16 families and 30 genera, and the quantities of the mutual species are 22 in spring and autumn. The dominant species were Collichthys lucidus, Miichthys miiuy, Amblychaeturichthys hexanema and Harpodon nehereus which collichthys lucidus, Miichthys miiuy, Amblychaeturichthys hexanema were the dominant species in spring, and Harpodon nehereus was the dominant species in autumn. According to the analysis of the ecological habits of fish, we learnt that fish distribution dominated by eurythermal euryhaline species in the survey area. Thus, the spring and autumn are the main breeding and growth period of commercial juvenile in waters of the Mount Putuo.