水生生物学报Issue(1)：158-165,8.DOI:10.7541/2014.21
鄱阳湖国家级自然保护区浮游生物群落结构及空间分布
COMMUNITY STRUCTURE AND SPATIAL DISTRIBUTION OF PLANKTON IN THE POYANG LAKE NATIONAL NATURE RESERVE, CHINA
摘要
Abstract
To evaluate the plankton characteristics of the Poyang Lake National Nature Reserve after the drought oc-curred in spring 2011, the community structure and spatial distribution of plankton in the Poyang Lake National Nature Reserve were investigated and analyzed in August, 2011. A total of 97 phytoplankton and 42 zooplankton species were identified, which belonged to 49 and 23 genera, respectively. The zooplankton were consisted of 13 species of protozoa, 23 species of rotifera, 3 species of cladocera and 3 species of copepoda. The numbers of plankton species in Lake Da-huchi and Zhushihu were more than that of the other lakes and rivers. The abundances of plankton among each lake and river were significantly different, and varied from 260 to8.18×106 cells/L for phytoplankton and 3630 to 73173 ind./L for zooplankton, respectively. The results showed that the abundances of plankton in Xiu River and the lakes that lo-cated at the west of Gan River, were significantly higher than that of Gan River and the other lakes. Statistical analysis indicated that the dominant species of phytoplankton in the Poyang Lake National Nature Reserve wereAnabaena flos-aquae, Scenedesmus quadricauda,S.bijuga,Melosira granulatavar. angustissima,M. granulate,M. graunlatavar. angustissima f. spiralis,Synedra acus andFragilaria capucina,while the dominant species of zooplankton wereStentor amethysinus,Difflugia lobostoma,Centropyxis discoides,Strombidim viride,Brachionus diversicornis,B. bennini, Trichocerca rousseleleti,T. longiseta andAsplanchna girodide. The maximum values of diversity indices (H′) and evenness (J) of both phytoplankton and zooplankton were 2.41 and 0.96, respectively. The values of abundance (Dm) of plankton were both less than 3. Evaluated with the diversity indices (H′), evenness (J) and abundance (Dm) of plankton, the water qualities of lakes and rivers in the Poyang Lake National Nature Reserve wereβ-type of pollution, except Lake Banghu and Meixihu.关键词
鄱阳湖/浮游植物/浮游动物/群落结构/空间分布Key words
Poyang Lake/Phytoplankton/Zooplankton/Community structure/Spatial distribution分类
生物科学引用本文复制引用
张婷,马行厚,王桂苹,李德亮,金斌松,秦海明..鄱阳湖国家级自然保护区浮游生物群落结构及空间分布[J].水生生物学报,2014,(1):158-165,8.基金项目
国家自然科学基金项目(31000183、31100282、31260107)资助 （31000183、31100282、31260107）
