| Variables | Main Components | |
| Axis 1 | Axis 2 | |
| Secchi depth | 0.759 | −0.281 |
| Water temperature | −0.293 | −0.756 |
| Dissolved oxygen | 0.220 | 0.843 |
| Electrical conductivity | −0.919 | −0.144 |
| Chlorophyll a | −0.590 | 0.665 |
| Total nitrogen | −0.630 | −0.392 |
| Total phosphorus | −0.911 | 0.155 |
| pH | 0.023 | 0.023 |
| Explained variation | 45% | 25% |