湄洲湾中、小型浮游动物的分布

本文分析了2007年春、夏、秋、冬4个季节在湄洲湾采集的浮游动物样品,共记录了浮游动物115种,及若干类别的阶段性浮游幼虫和临时性浮游动物.湾内浮游动物种类丰富,生态类群多样,优势种皆为小型浮游动物.浅水Ⅱ型网获的浮游动物种类和个体数量均较浅水Ⅰ型网获的丰富.中、小型浮游动物个体总密度分布较均匀,4个季节均值高达73.34×102个/m^3,多样性指数（H′）和均匀度指数（J）值都很高,4个季节均值分别为3.30和0.68.湾内浮游动物的分布,大致反映了不同水系影响的动态.

Distribution of meso-zooplankton and micro-zooplankton in Meizhou Bay

Based on zooplankton survey in Meizhou Bay in 2007, the analytical results showed that a total of 115 species was recorded besides some meroplanktonic larvae and tychozooplankton. Species of zooplankton in the bay was abundant with many ecological types. The dominant species were all microzooplankton. Species obtained with standard medium net were more abundant than that of standard large net. Distribution of abundance of meso-zooplankton and micro-zooplankton were symmetrical and the average of 4 seasons was 73.34× 10^2ind/m^3. Both index of diversity（H＇） and evenness（J） were very high,reaching 3.30 and 0.68 ,respectively. It shows that distribution of zooplankton are responds to different water masses.