Welcome to Chinese Journal of Applied Ecology! Today is Share:

Chinese Journal of Applied Ecology

Previous Articles     Next Articles

Community characteristics of crustacean zooplankton and its relationship with environmental factors in Suzhou Industrial Park, Jiangsu Province, China.

YU Ting-ting1, ZHU Ya1, XU Long2, ZHAO Lei3, QIAN Wen-jie2, CHANG Qing1, WANG Guo-xiang4, CHEN Jian-qin5   

  1. (1School of Life Sciences, Nanjing Normal University, Nanjing 210023, China; 2Environment Supervising Brigade, Suzhou Industrial Park, Suzhou 215027, Jiangsu, China; 3Environmental Protection Bureau of Suzhou Industrial Park, Suzhou 215028, Jiangsu, China; 4School of Geographical Sciences, Nanjing Normal University, Nanjing 210023, China; 5School of Life Science and Chemical Engineering, Jiangsu Second Normal University, Nanjing 210013, China)
  • Online:2015-08-18 Published:2015-08-18

Abstract: The monthly sampling data from June 2012 to May 2013 were used to study the composition and structure of the crustacean zooplankton community in the lakes and rivers of Suzhou Industrial Park. The variations in density and biomass of the crustacean zooplankton and their relationship with the environment factors were investigated. The results showed that a total of 42 species of crustacean zooplankton were found, including 24 species of cladocerans which belonged to 6 families and 12 genera, and 18 copepods which belonged to 7 families and 13 genera. The dominant species were Diaphanosoma brachyurum, Bosmina longirostris, Sinocalanus dorrii and Cyclops vicinus in all seasons of the year  both in the rivers and the lakes. The density and biomass of the crustacean zooplankton in summer and autumn were higher than that in winter and spring, and there were two peaks in summer and autumn respectively  both in the lakes and the rivers. The average density and biomass of cladocerans in the rivers were significantly higher than that in the lakes. There was no significant difference in the average density of Copepods between the rivers and the lakes, but the biomass in the rivers was higher than that in the lakes significantly. There were significant differences in dissolved oxygen, pH, Secchi depth, total dissolved solids, salinity, total phosphorus, total nitrogen and ammonium nitrogen between the lakes and the rivers. Redundancy analysis showed that the distribution of most of crustacean zooplankton was positively correlated with water temperature, the salinity, CODMn and total phosphorus concentrations and only the distribution of the species belonging to genus Daphnia and Scapholeberis was positively correlated with O2 concentration, pH, and Secchi depth in both the rivers and the lakes in Suzhou Industrial Park.