Recommend this article

NO₂⁻–N and TN in Spring, SD and TP in Summer had significant difference between 8 lakes and 5 reservoirs located in the Yangtze River delta (P < 0.05). All 13 studied water bodies were dominated by cyanophyta, whose Microcystis may determine the dominance of Bosmina fatalis. Eutrophic level should be in relation to the significant difference of plankton between 8 lakes and 5 reservoirs (P < 0.05). Five factors (cyanophyta, SD, WT, pH and DO) were significantly correlated with crustacean zooplankton abundance (P < 0.05). This research provided basic data of the 13 water bodies and studied the relationship between zooplankton and physicochemical factors as well as phytoplankton, providing scientific basis for the monitoring of eutrophic waterbodies located in the Yangtze river delta.