作　　者： ; ; ;

机构地区： 广东海洋大学水产学院

出　　处： 《水产学杂志》 2007年第1期74-79,共6页

摘　　要： 2003年8、12月和2004年2、5月对放鸡岛海域浮游动物的种类组成及分布进行了研究。结果表明:浮游动物以及浮游幼体12个类群共59种,其中浮游幼虫和水母类种类最多,分别为21种和13种。浮游动物群落可分为广布种、暖水性外海种和近岸低盐种3个生态类型。放鸡岛北侧近岸水域分布密度较高,而南侧外海水域分布密度较低。8月份平均个体密度最高21619 ind./m3;12月份平均个体密度最低2 370 ind./m3。桡足类和浮游幼虫是全年的优势类群,平均占到总体的67.56%和18.66%。多样性与均匀度指数变化是5月>8月>2月>12月。 The paper is to present the analysis of composition and distribution of zooplankton in Fangji island waters on the basis of investigation carried out in August and December 2003 as well as February and May 2004. It is shown that there are 12 groups, 59 species of zooplankton and larva among which larva and jellyfish are the majority. The community can be divided into three clusters as wildly distributed species, warm -watered oceanic species and low saline coastal species. The abundance of zooplankton is greater in the north of Fangji island than that in the south. The highest abundance is 21,619 ind./m^3 in August and the lowest abundance is 2,370 ind./m^3 in December. Copepods and larva are the dominant species throughout the year and account for 67.56% and 18.66%, respectively. The order of diversity and evenness index are as follows May 〉 August 〉 Febuary 〉 December.

关 键 词： 放鸡岛 浮游动物 种类组成 密度 多样性

领　　域： [农业科学] [农业科学]