2008年夏季南黄海浮游动物群落特征

为了解南黄海浮游动物的群落特征及其变化，利用2008年8月在南黄海采集的浮游动物样品，分析了该海域浮游动物的种类组成、丰度、生物多样性和优势种类，并对浮游动物的群落进行了划分。本次调查共鉴定浮游动物72种、浮游幼虫27类，浮游动物的平均丰度为1054.9 ind/m3，丰度的平面分布呈现出由沿岸水域向中部水域升高的趋势，生物多样性的分布趋势与之相反。根据浮游动物组成的相似程度，将研究海区浮游动物划分为3个群落:南黄海沿岸群落、南黄海中部群落和长江口沿岸群落，并对各群落进行了种类组成、丰度、生物多样性和优势种类的分析。本研究的群落划分结果与之前的研究基本一致，但近半个世纪以来，南黄海浮游动物群落地理分布的南界向北有所推移。

Community characteristics of zooplankton in the South Yellow Sea in summer, 2008

To understand the dynamics of zooplankton community characteristics in the South Yellow Sea, zooplankton composition, abundance, biodiversity and dominant species were investigated in August 2008.A total of 72 species of zooplankton and 27 species of pelagic larvae were identified.The mean abundance of zooplankton was 1054.9 ind/m3.A rising trend of abundance from coastal waters to the middle of the Yellow Sea was observed, while the biodiversity showed an opposite trend.Based on the similarity of species composition, the zooplankton in the study area were clustered to three communities:South Yellow Sea coast community, South Yellow Sea central community, Yangtze River Estuary coast community.The community division in this study was generally consistent with previous studies, but the southern boundary of the zooplankton community in the South Yellow Sea has moved northward over the past five decades.