highly significantp < 0.001
4 ) showed highly significant correlations of the bloom algae ( Microcystis and Psephonema ) and positive correlations between Xanthomonadaceae and Microcystis ( p < 0.001), Xanthomonadaceae and Psephonema (p < 0.001), Alcaligenaceae and Microcystis ( p < 0.01), and Alcaligenaceae and Psephonema ( p < 0.001).