Application of eutrophication indices for assessment of the ecological quality of the Moroccan eastern Mediterranean coast: Ras Kabdana-Saïdia

Eutrophication of littoral seawater is estimated to be one the main threats marine biota. Therefore, continuous monitoring necessary define areas potential risk. Our work an essay explore possibility applying trophic state index (TRIX) assess eutrophication along eastern coast Moroccan Mediterranean (Ras Kabdana-Saïdia) in concert with a number hydro chemical parameters and nutrients descriptors aimed at selection relevant indicators coastal area ecological quality. Seawater samples were studied monthly during 2018. The following environmental have been considered: temperature, salinity, pH, suspended matter, turbidity, dissolved oxygen, saturation levels, nitrite, nitrate, orthophosphate. Principal Component Analysis was applied order figure out score most combination discriminate between sites select representative (pressure/state) eutrophication. variables are defined as for classification sites: (N, P) their molar ratios (N/P), capacity system produce sustain organic matter (chlorophyll a), (TRIX). results show TRIX values below 4, range indicated that there no Ras Kabdana-Saïdia located oligotrophic state.