三亚湾浮游动物数量分布及群落特征的季节变化  

Seasonal Variation of Zooplankton Community Structure and Species Composition in the Sanya Bay

作　　者：时翔[1,2,3] 王汉奎[1,2] 谭烨辉[1] 黄良民[1] 

机构地区：[1]中国科学院南海海洋研究所 [2]中国科学院海南热带海洋生物实验站,海南三亚572000 [3]中国科学院研究生院,北京100049

出　　处：《海洋通报》2007年第4期42-49,共8页Marine Science Bulletin

基　　金：中国科学院生态系统研究网络台站研究基金;近岸珊瑚礁海域生态系统碳收支及调控机制(国家基金面上项目40576052;中科院方向性项目KSCX2-SW-132)

摘　　要：根据三亚湾2005年春、夏、秋和冬季航次的调查资料,分析了这4个季度的浮游动物的种类组成、优势种、群落结构、丰度和生物量的时空变化。经过鉴定共有终生性浮游动物125种,阶段性浮游动物17种,其中毛颚类幼虫和短尾溞状幼虫是各个季度都出现的优势种。三亚湾的浮游动物可以分为河口类群、暖水沿岸类群和广布暖水外海类群。全年浮游动物平均丰度为95.91ind·m-3,浮游动物平均生物量为69.22mg·m-3;浮游动物丰度的季节分布是夏>秋>春>冬,平均生物量的季节分布是秋>夏>春>冬,总体上一般是夏秋季高于冬春季。冬季浮游动物丰度与浮游植物细胞总密度之间没有相关性。In 2005, the species composition, dominant species, community structure, and seasonal variations of abundance and biomass of the zooplankton in Sanya Bay were analyzed. A total 125 species of the zooplankton and 16 species of the planktonic larva were identified. Chaetognatha larva and Zoea larva were two dominant groups appearing in all four seasons. The zooplankton in Sanya Bay could be divided into three ecological groups below according to their ecological habits and distribution characters, i. e., estuarine group, warm water nearshore group and widely-distributed warm water pelagic group. The annual average abundance of zooplankton was 95.91 ind · m^-3, and the annual average biomass of zooplankton was 69.22 mg · m^-3. The abundance and biomass of zooplankton were higher in summer and autumn than those in winter and spring. The dimensional variation of zooplankton abundance was in agreement with that of phytoplankton density in winter.

关 键 词：三亚湾 浮游动物 群落结构 丰度 生物量 

分 类 号：Q145.2[生物学—生态学] Q178.53[生物学—普通生物学]