Table 2.
Spearman rank correlation matrix (rs) of the biomass of Planktothrix rubescens and selected environmental parameters (bold numerals for p < 0.001; bold italic numerals for p < 0.05).
| Parameters |
Lake
Rogóźno (n = 126) |
Lake Krasne (n = 126) |
Lake
Piaseczno (n = 182) |
|---|---|---|---|
| Depth | 0.36 | 0.10 | 0.47 |
| Total nitrogen (TN) | 0.57 | −0.07 | 0.29 |
| Ammonium nitrogen (N-NH4) | −0.28 | −0.25 | −0.31 |
| Nitrate nitrogen (N-NO3) | −0.26 | −0.21 | −0.43 |
| Phosphate phosphorus (P-PO4) | −0.34 | 0.08 | −0.32 |
| Total phosphorus (TP) | 0.36 | 0.71 | 0.72 |
| Photosynthetic Active Radiation (PAR) | −0.31 | −0.28 | −0.54 |
| Temperature of water | −0.36 | −0.27 | −0.70 |
| Concentration of chlorophyll-a | 0.86 | 0.70 | 0.76 |
| Total biomass of phytoplankton | 0.87 | 0.62 | 0.72 |
| Shannon-Wiener diverity index | −0.58 | −0.36 | −0.72 |
| Pielou evenness index | −0.56 | −0.42 | −0.64 |
| Number of species | −0.37 | −0.21 | −0.62 |