Environmental Drivers and Aquatic Ecosystem Assessment of Periphytic Algae at Inflow Rivers in Six Lakes over the Yangtze River Basin

Periphytic algae is frequently utilized as a health indicator for ecosystems. Many research studies have been conducted in China on the periphytic community, but none has compared community structure at inflow rivers among different lakes Yangtze river basin. The were investigated 94 sites of Dianchi Lake, Danjiangkou Reservoir, Dongtinghu Poyanghu Chaohu and Taihu Lake. Based microscopic research, eight phyla 126 genera found six lakes, with Cyanobacteria Bacillariophyta dominating. CCA (Canonical Correspondence Analysis) was used to analyze association between environmental factors LefSe (Linear discriminant analysis effect size) find enriched species lakes. We discovered that TN (total nitrogen) TP phosphorus) driving environment variables basin scale based combined results Mantel Test. TITAN (Threshold Indicator Taxa also revealed their concentration thresholds. Finally, we assessed ecosystem lakes; biotic abiotic indices yielded conflicting results, utilizing both assess using Random Forest algorithm will yield objective comprehensive results.