Source of Variation SS df MS F F crit P
Population density
Stations 27484020 1 27484020 22.64096 4.844336 <0.05
Months 1.04E+10 11 9.44E+08 777.774 2.81793 <0.05
Error 13352978 11 1213907      
Total 1.04E+10 23        
Species diversity
Stations 0.135 1 0.135 0.690219 4.844336 NS
Months 3.471962 11 0.315633 1.613748 2.81793 NS
Error 2.15149 11 0.19559      
Total 5.758452 23        
Species richness
Stations 0.00329 1 0.00329 0.983397 4.844336 NS
Months 0.034409 11 0.003128 0.934994 2.81793 NS
Error 0.036801 11 0.003346      
Total 0.074501 23        
Species evenness
Stations 0.00608 1 0.00608 1.186272 4.844336 NS
Months 0.059654 11 0.005423 1.05807 2.81793 NS
Error 0.05638 11 0.005125      
Total 0.122114 23        
NS – Non significant
Table 3: Results of Two-way ANOVA for the zooplankton composition.