摘要：iD. magna/i can affect the composition of planktonic bacteria, and can also significantly inhibit the growth of iCyanobacteria/i at high density. In this study, the inhibitory effects of low-density iD. magna/i groups were er than high-density groups due to increases in iAcidobacteria/i abundance in water. Meanwhile, iD. magna/i can inhibit the growth of iPlanktothrix/i and iMicrocystis/i, but especially the growth of the latter. Alternatively, iM. aquaticum/i and iC. demersum/i can change the community structure of planktonic bacteria. Among them, the inhibitory effect of iM. aquaticum/i on iMicrocystis/i and iPlanktothrix/i is , but it also increases the relative abundance of iChlamydia/i in water and the risk of pathogenic bacteria. In contrast, the inhibitory effect of iC. demersum/i was more significant on iMicrocystis/i than on iPlanktothrix/i. Therefore, the combination of “submerged plants-iDaphnia/i”, especially the combination of low density iD. magna/i with iM. aquaticum/i, had a significant inhibitory effect on iPlanktothrix/i and iMicrocystis/i.
