Table 2 Calculated mean values of temperature, pH, salinity and dissolved oxygen (DO) recorded at the surface, middle and bottom water layers of the study sites during high and low tides
Stations | Sampling season | Temperature (°C) | pH | Salinity (‰) | DO (mg/L) |
|---|---|---|---|---|---|
Pashurtala | Post-monsoon | 28.58±0.263 | 7.33±0.186 | 13.16±0.983 | 5.23±1.123 |
Dry winter | 22.30±0.603 | 7.53±0.299 | 21.16±0.983 | 5.06±0.355 | |
Monsoon | 30.17±0.250 | 7.40±0.378 | 10.25±0.418 | 4.35±0.413 | |
Pashurtala Canal | Post-monsoon | 28.85±0.637 | 7.55±0.104 | 13.16±0.983 | 5.66±0.621 |
Dry winter | 22.63±0.880 | 7.66±0.130 | 21.16±0.752 | 5.23±0.403 | |
Monsoon | 30.03±0.361 | 7.58±0.123 | 11±0.547 | 3.96±0.081 | |
Kalagachhi | Post-monsoon | 28.96±0.45 | 7.58±0.116 | 12.5±1.64 | 5.33±0.989 |
Dry winter | 22.63±0.928 | 7.73±0.038 | 22.16±0.752 | 5.48±0.856 | |
Monsoon | 29.76±1.36 | 7.65±0.047 | 9.33±0.516 | 3.93±0.121 | |
Kalagachhi Canal | Post-monsoon | 29.08±0.318 | 7.51±0.040 | 11.5±1.643 | 6.16±1.23 |
Dry winter | 22.38±0.767 | 7.67±0.265 | 22.66±0.516 | 4.9±0.593 | |
Monsoon | 30.33±0.081 | 7.64±0.087 | 9.66±0.408 | 3.98±0.116 | |
Nildumur | Post-monsoon | 28.96±0.508 | 7.56±0.121 | 11.83±2.041 | 6.23±0.882 |
Dry winter | 22.16±0.871 | 7.67±0.098 | 22.83±0.258 | 4.98±0.098 | |
Monsoon | 30.63±0.332 | 7.64±0.111 | 9.41±0.376 | 4.18±0.098 | |
Arpangashia | Post-monsoon | 28.93±0.163 | 7.51±0.147 | 11.33±0.516 | 5.46±0.771 |
Dry winter | 22.25±0.413 | 7.73±0.176 | 23.33±0.816 | 5.41±0.560 | |
Monsoon | 30.45±0.187 | 7.79±0.103 | 9±0.632 | 4.33±0.186 |