Table 1.
The physicochemical parameters of the water body in the sampling point.
Fig 1.
Changes of dissolved total phosphorus (DTP) (A), particle phosphorus (PP) (B), and dissolved inorganic phosphorus (DIP) (C) in different treatments at high (HD), medium (MD) and low (LD) accumulated cyanobacterial densities in the dark and high (HI), medium (MI) and low (LD) accumulated cyanobacterial densities with illumination.
Fig 2.
The phosphorus forms percentages of PP/TP (A), DTP/TP (B), and DIP/TP (C) in different treatments. Values given are the mean ± SD of three replicate measurements.
Fig 3.
Variation of Chl-a concentration and accumulated cyanobacterial density in different treatments.
Values given are the mean ± SD of three replicate measurements. A = cyanobacterial density, B = Chl-a.
Table 2.
Correlation between cell density and Chl-a with DTP and DIP.
Fig 4.
MDA, CAT content and SOD, AKP activity in different treatments at the end of the experiment.
Values given are the mean ± SD of three replicate measurements. a, b, c and d indicate statistically significant differences from the controls, P < 0.05.
Fig 5.
Variation of TDS (A), EC (B), Salt (C), NH4+-N (D), DO (E), ORP (F), pH (G) and NO3--N(H) in different treatments, values given are the mean ± SD of three replicate measurements.
Table 3.
Correlation between the water quality parameters with DTP and DIP.
Fig 6.
The abundance of bacterial phylum and genus accounts for the top 10% in each treatment.
Table 4.
Alpha-diversity index analysis.