龙滩水库浮游动物生物量的垂直分布与季节性变化  

Vertical Distribution and Seasonal Variations of Zooplankton Biomass in Longtan Reservoir

作　　者：朱俊华[1] 姚俊杰[1] 谢巧雄 晏萍萍 邹芳芳[1] 

机构地区：[1]贵州大学动物科学学院水产科学系,贵州贵阳550025 [2]贵州省水产技术推广站,贵州贵阳550025 [3]贵州省罗甸县畜牧兽医局,贵州罗甸550100

出　　处：《贵州农业科学》2014年第1期163-166,共4页Guizhou Agricultural Sciences

基　　金：贵州省农业科技攻关项目"龙滩水库渔业利用优化模式"(黔科合NY字2011-3073)

摘　　要：为掌握龙滩水库罗甸水域浮游动物生物量的垂直分布和季节变动规律，为龙滩水库不同层次中浮游动物的分布提供科学依据，2011-2012年分4季对龙滩水库罗甸水域浮游生物垂直分布进行分层采样，采样水层为0．5m、2m、4m、6m、8m、10m、15m、20m和30m。结果表明：春季和秋季浮游动物生物量在垂直分层上变化差异较小，而在夏季和冬季变化较显著，尤以夏季为甚，夏季浮游动物生物量和密度的变化范围分别为0．12～2．45 mg/L和92．8～309．2 ind．/L；在不同季节，浮游动物生物量最高值出现在不同的水层，浮游动物生物量在垂直水柱上的变化与水温和叶绿素 a含量均不相关。In order to learn the law of the vertical and seasonal variations of zooplankton in Longtan Reservoir,and provide a scientific basis for distribution of zooplankton. The vertical distribution of plankton species was studied by sampling water at different depths （0.5 m,2 m,4 m,6 m,8 m,10 m,15 m, 20 m and 30 m）in Longtan Reservoir in four seasons from 2011 to 2012.The results showed that the vertical variation of the biomass of zooplankton was relatively small in spring and fall.The obvious variation were found in winter and summer.Especially in summer.The amount and biomass of zooplankton in summer changed between 0.12~2.45 mg/L and 92.8~309.2 ind./L,respectively.The peak value of biomass of zooplankton was found in different depth at different season.An obvious positive correlation was found between the abundance and dry weight of zooplankton.The results also showed that there were no obvious correlations among biomass of zooplankton and temperature of water,or chlorophyll a content.

关 键 词：龙滩水库 浮游动物 垂直分布 季节变化 

分 类 号：Q958[生物学—动物学]