The different components of this monitoring program - microbiological, zooplankton, physical-chemistry, detection of heavy metals, sedimentology and mathematical modeling - will meet the requirements in the European Directives applicable to this case: Directive 76/160 / CEL, on the quality of bathing water; Directive 79/923 / EEC on the quality of shellfish waters; Directive 92/43 / EEC, known as the "Habitats Directive", and Directive 79/409 / EEC, termed "Policy of Birds".