Phytoplankton Seasonality Patterns in Eutrophic Marine Coastal Waters

AbstractPhytoplankton seasonality patterns were examined in an inshore eutrophic station fertilized continuously by domestic sewage. Data of certain physical (temperature), chemical (P—PO4, N—NO3, and Si—SiO2 concentrations), and phytoplanktonic (chl α, total cell, diatom, and dinoflagellate concentrations) parameters were analyzed by time series analysis (autocorrelation, cross correlation). The phytoplanktonic and chemical parameters exhibited significant seasonal variability—in spite of the constant fertilization of the water—which was associated with the seasonal variability of temperature.