【摘要】 首次报道了江苏省苏北浅滩生态监控区邻近海域大型底栖生物的种类组成以及数量分布规律,调查结果表明,苏北浅滩生态监控区共鉴定出大型底栖生物105种,其中软体动物、甲壳动物和鱼类是构成该区域大型底栖生物的主要类群,三者约占总种数的93.33%。底栖生物年平均生物量为0.3285g.m-2,夏季高于春季;平均栖息密度0.5460ind.m-2,也是夏季高于春季,生物量和栖息密度组成均以软体动物和甲壳动物占优势,北部海域生物量高于南部海域。按照生态特征调查海域的底栖生物可以分为5个群落,各群落有自己的优势种。更多还原

【Abstract】 A detail species composition and quantity distribution of macrobenthos community in the shoal-water area along the northern coast of Jiangsu Province were first reported.A total of 105 species of macrobenthos was identified and most of them were mollusk,crustacean and fish(93.33%).The average macrobenthos biomass was 0.3285 g·m-2 and the average individual density was 0.5460 ind·m-2 and most of them were mollusk and crustacean.Biomass and density were higher in summer than in spring,and higher in the north area than in the south area.Macrobenthos in this area can be defined into five types by ecological character,dominant key species of each group are presented.更多还原