Month Season Surface water temperature (°C) Surface water salinity (‰) Surface water pH DO (ppm) Total litter g/m2/day
Henry’s Island Premonsoon 34.0 26.08 8.30 4.56 1.544
Monsoon 32.9 10.02 8.05 5.98 1.186
Postmonsoon 29.9 20.10 8.10 5.13 1.447
Sagar South Premonsoon 34.0 24.15 8.28 4.55 1.605
Monsoon 32.8 9.66 8.00 4.02 1.055
Postmonsoon 29.8 18.50 8.10 4.85 1.368
Chemaguri Premonsoon 33.7 21.80 8.28 5.13 1.417
Monsoon 32.5 6.59 7.99 5.81 0.996
Postmonsoon 28.0 12.48 8.04 4.93 1.370
Gosaba Premonsoon 33.6 22.40 8.10 4.68 1.500
Monsoon 32.6 12.68 7.95 4.93 0.905
Postmonsoon 29.6 19.59 8.00 5.01 1.050
Canning Premonsoon 33.8 22.01 8.10 4.85 1.200
Monsoon 32.6 9.23 7.80 5.76 0.719
Postmonsoon 28.9 18.45 7.90 5.32 0.908
Table 4: Monthly variation of physico-chemical variables at the sampling stations.