Evaluating Marine Biodiversity Richness and Management Plan in Bahia Anegada, Northern Patagonia, Argentina

The unique environmental features of its coasts make it as one of the most important areas for the conservation of coastal marine biodiversity in the Province of Buenos Aires. The coast is featured as a wetland by tide channels, marsh, sand beaches and dunes. The region is a nesting area for several duck, heron, cormorant, flamingo, swan, oyster eater and seagull species. The area is of great importance for the Olrog's Seagull (Larus atlanticus), an endemic and threatened species. It is also a breeding and nursery area for many commercial fish and invertebrates. The area includes a stable population of the almost extinct Yellow Clam (Mesodesma mactroides) and an important reproductive colony of sea lions (Otaria flavescens), considered one of the biggest in the country. Although declared as a Provincial Natural Reserve, the area has a low level of management. The Bahia Anegada is exposed to pollution, unsustainable fishing activities and coastal habitat destruction by tourism and recreation. Human wildlife conflicts exist in this area, especially with shorebirds and marine mammals. Invasive species have been also detected.

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