Thefirst two CCA axes were significant (P= 0.002) and jointly
explained 12% of the total variationinphytoplanktondata.Thephytoplankton–environment correlations for thefirst (0.865) and the second
(0.789) axis were high, indicating a relatively strong relationship between
phytoplankton and the measured environmental variables. CCA with forward selection showed that nutrients (nitrate, ammonium and SRP), TSS,
conductivity,flow and water temperature contributed the most to the
phytoplankton density distribution