highly significantP < 0.01
The Pearson correlation analysis revealed a highly significant positive correlation ( P < 0.01) between the number of Rotifera species and WT, NO 2 –N, and Chl-a. while WT, NO 2 –N and Chl-a were higher in summer, and the suitable survival environment led to solitary reproduction in rotifers 53 , which favoring the dominance in the number of species.