Variables Fcal Fcrit Surface water temperature Between stations Between months 2.71 719.21 2.76 3.74 Surface water salinity Between stations Between months 169.15 72.29 2.76 3.74 Surface water pH Between stations Between months 10.39 23.61 2.76 3.74 Surface water dissolved oxygen Between stations Between months 3.75 9.68 2.76 3.74 Surface water nitrate Between stations Between months 56.75 70.48 2.76 3.74 Surface water phosphate Between stations Between months 28.34 11.09 2.76 3.74 Surface water silicate Between stations Between months 21.57 28.33 2.76 3.74

Table 2: ANOVA: (for physico-chemical parameters).