Parameters Temp Salinity pH DO NO3 NO2 NH4 IP SiO3 Temp 1                 Salinity 0.8668** 1               pH 0.8784** 0.8163** 1             DO -0.6106** -0.744** -0.6749** 1           NO3 -0.563* -0.6866 -0.5163* 0.7155** 1         NO2 -0.5252* -0.6493** -0.4895 0.5959** 0.8120** 1       NH4 0.7914** 0.7258** 0.6070** -0.7096** -0.7308** -0.5265 1     IP 0.2247 0.2189 0.342 -0.1846 0.2669 0.5107* 0.1446 1   SiO3 -0.6538** -0.6125** -0.5276* 0.5971** 0.6286** 0.6198** -0.6188** 0.6543** 1

*Correlation is significant at the 5% level (P<0.05) **Correlation is significant at the 1% level (P<0.01).

Table 2: Correlation (r) values between physico-chemical parameters for station-I.