The Concha d'Ostra Sustainable Development Reserve is in the municipality of
Guarapari, Espírito Santo. It has an area of . The area is mainly covered by mangroves but also includes some coastal forest. Economically important fauna are crustaceans and molluscs, and fish such as sea bass and mullet. The proximity to the city of Guarapari makes it a challenge to manage the reserve and maintain its integrity. During the closed season the capture, transport and marketing of crabs is prohibited, and surveillance by SEMA is increased. ==History==