Fact Sheet: Western Indian Ocean marine ecoregion
The marine and coastal ecosystems of the Western Indian Ocean islands are rich, diverse and distinctive. The Seychelles are among the few granitic oceanic islands that support coral reefs, as well as small stands of mangroves. Large river estuaries in Madagascar support extensive mangrove areas, while on other islands intact mangrove forests remain only in a few bays. Around these one finds a variety of other coastal habitats, including spectacular reefs, sea grass beds, lagoons, beaches, rocky coasts, cliffs, and limestone caves.