From survey results, the average density of all sampling sites is 2740.5ind/L. The sampling site of Xiaolong upper dam has the highest density 3121ind/L, which is also the reservoir area of Xiaolong Power Station.
The average biomass is 2.2654mg/L, and the sampling site of Qingju upper dam has the
highest biomass 2.7697mg/L, namely the reservoir area of Qingju Power Station