Analysis of Plankton Community Structure and Its Diversity in Xueye Lake of Jinan City
In order to understand the status of aquatic resources in the lake and reservoir,and effectively protect the urban water ecological en-vironment,the plankton in Xueye Lake was investigated in the autumn of 2021.The results showed that there were a total of 40 species of phyto-plankton belonging to 6 phyla,among which chlorophyta accounted for 35.00%of the total phytoplankton species,and the average density and average biomass of phytoplankton were 10.06×106 cells/L and 12.88 mg/L,respectively.There were 5 dominant species in phytoplankton.A to-tal of 13 zooplankton species belonging to 4 groups were identified,in which the number of rotifera species was the most,accounting for 38.46%of the total zooplankton species,and the average density and average biomass of zooplankton were 1.93 ind./L and 0.013 mg/L,respectively.There were 5 dominant species in zooplankton.The average Shannon-Wiener diversity index of phytoplankton and zooplankton were 1.554 and 1.556,the average Pielou evenness index of phytoplankton and zooplankton were 0.467 and 0.966,the average Margalef richness index of phy-toplankton and zooplankton were 1.059 and 2.873,respectively.The water quality evaluation of the diversity index showed that the water quality of the Xueye Lake was in the state of medium pollution,and the pollution degree was different in every research area.
PlanktonCommunity structureBiodiversityWater quality assessmentXueye Lake