| Environmental variables | Codes | Rainy season Mean ± SD | Dry season Mean ± SD | T test | |
| t-value | P | ||||
| Temperature (˚C) | Temp | 30.58 ± 0.29 | 2 6.57 ± 0.13 | 37.48 | <0.001 |
| pH | pH | 6.92 ± 0.10 | 6.95 ± 0.17 | −0.47 | 0.64 |
| Salinity (ppt) | Sali | 0.67 ± 0.25 | 3.39 ± 0.23 | −23.69 | <0.001 |
| Conductivity (mS/cm) | Cond | 1.71 ± 0.62 | 7.98 ± 0.50 | −23.6 | <0.001 |
| Total dissolved solids (ppt) | Tds | 1.22 ± 0.45 | 5.70 ± 0.39 | −22.51 | <0.001 |
| Transparency (cm) | Trans | 47.62 ± 5.34 | 67.55 ± 5.51 | −3.65 | 0.002 |
| Depth (m) | Prof | 2,72 ± 1.22 | 2.03 ± 1.25 | 1.18 | 0.25 |
| Nitrogen (mg/L) | N | 2,78 ± 0.74 | 0.43 ± 0.23 | 9.09 | <0.001 |
| Phosphorus (mg/L) | P | 0.12 ± 0.02 | 0.10 ± 0.11 | 0.54 | 0.3 |
| Dissolved oxygen (mg/L) | O2 | 13.4 ± 1.68 | 13.91 ± 9.89 | −0.15 | 0.88 |