RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN >> 2013, Vol. 21 >> Issue (Z): 20-.

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ZOOPLANKTON COMMUNITY STRUCTURES OF 
THE DISHUI LAKE AND WATER QUALITY ASSESSMENT

LIN Qing| YOU Wenhui   

  1. (College of Resources and Environment| East China Normal University| Shanghai 200241| China)
  • Online:2013-09-20

Abstract:

4 seasons sampling in 2012 were conducted to study the relationship between zooplankton community structures of the Dishui Lake and environmental factors, and to assess its water quality A total of 39 species were identified, including 29 Rotifera, 3 Cladocera and 7 Copepoda Dominant species included 9 Rotifera and 3 Copepoda Annual average density of zooplankton was 1 387 ind/L, ShannonWiener and Margalef diversity indices were 147±044 and 080±043, respectively Correlation analysis of density, species number and environmental factors displayed a significant relationship between zooplankton community and water temperature, chlorophyll a and pH Water quality status of the Dishui Lake in 2012 could be regarded as αmesosaprobic and its nutrition level was at semieutrophic level under application of water quality index, trophic level index(TLI) and diversity indices assessment methods 

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