This Site features diverse ecosystems, including three freshwater coastal lakes, a sandy beach, inter-dunal marshes and irrigated areas. It provides critical habitat for threatened species such as the marbled teal (Marmaronetta angustirostris) and European eel (Anguilla anguilla), along with endemic reptiles and amphibians. The Site is a key wintering area for the lesser black-backed gull (Larus fuscus), supporting over 1% of its biogeographical population. Beyond its value for migratory birds, it sustains a variety of wildlife. However, agricultural activities pose significant threats, including groundwater depletion, reduced river flows, and eutrophication. Pollution from pesticides and fertilizers further endangers its ecological balance, underscoring the urgent need for conservation and sustainable management to protect its biodiversity.