洋山浮游动物群落生态结构

Ecological Structure of Zooplankton Communities of Waters in Yangshan Bay

2012、2013年11月分别在洋山风电场附近水域进行单个航次的浮游动物及相关因子调查,根据采集的浮游动物样品的分析鉴定及其它环境因子测试结果,对调查海域的浮游动物群落进行研究。结果表明,2012年航次共鉴定出现浮游动物12种(含1种浮游幼虫),分为7大类,其中桡足类种数最多,为5种;其次为水母类、糠虾类、涟虫类、端足类、十足类、毛颚类各1种。2013年航次共鉴定出现浮游动物11种,分为5大类,其中桡足类种数最多,为5种;其次为水母类3种,糠虾类、涟虫类、毛颚类各1种。本区域内群落结构比较脆弱,物种丰富度较低,个体分布比较均匀,水体属于中度污染。

Based on the single investigation data of zooplankton and the relevant environmental factors ob-tained from two cruises in Nov.of 2012 and 2013 on wind power plant nearby waters in Yangshan-Bay,it turned out that total 7 categories and 12 species were identified in 2012;the most group was Copepoda(5 species);there are Jellyfish class,Mysidacea,Ripple insect,Amphipoda,Decapod and Chaetognatha on the rest.In 2013,total 5 categories and 11 species were identified and the most group was Copepoda(5 species);there were Mysidacea,Ripple insect and Chaetognatha on the rest.In this region,the community structure was relatively fragile and the species richness was relatively low;the individual distribution was relatively uniform similarly.