</titre> Many disputes between States are specific. They deal with spaces and resources linked with marine ecosystems and activities, and require a special Law : International Law of the Sea. This one, firstly divides States rights on marine spaces, but has another role since 1950 : the regulation of...

Without denying the existence of common characteristics between lands protected areas and marine protected areas (MPA), we address the question of MPA, as a peculiar category of territories to protect. This article shows how Law and economic sciences are increasingly involved in the study of...