大李家湾养殖水域浮游动物数量分布

Distribution of zooplankton in mariculture areas of Dalijia Bay

1997年4月至1998年4月对大李家湾养殖水域进行了综合调查。结果表明,大李家湾共鉴定出浮游动物52种,隶属于5门、5纲、15目、33科40属。浮游动物生物量在养殖区内、外月际变化趋势相同,生物量差别不大。1月份生物量最高,11月份最低。在个体丰度上,小型浮游桡足类所占比例较大。同时,分析了浮游动物的分布与环境因素之间的关系。

The survey of the mariculture area in Dalijia Bay was carried out from April 1997 to May 1998. The result of zooplankton was reported in this paper. As a result of analysis, 52 species of zooplankton were identified. They fall into 5 phylums, 5 classes, 15 order, 33 families, and 40 genera respectively. The biomass of zooplankton inside and outside the mariculture area have the same trend of distribution which shows a maximum in January and a minimum in November. As far as individual abundance, small copepoda have larger proportion.At the same time, the relationship between zooplankton distribution and environmental factor was discussed.