Subdivisões
O Indo-Pacífico ocidental é ainda mais subdividido nas províncias marinhas, e as províncias marinhas divididas em ecorregiões marinhas:
Mar Vermelho e Golfo de Aden
Northern and Central Red SeaSouthern Red SeaGulf of Aden
Somália/Arábia
Arabian (Persian) GulfGulf of OmanWestern Arabian SeaCentral Somali Coast
Oceano Índico Ocidental
Northern Monsoon Current CoastEast African Coral CoastSeychellesCargados Carajos/Tromelin IslandMascarene IslandsSoutheast MadagascarWestern and Northern MadagascarBight of Sofala/Swamp CoastDelagoa
Prateleira oeste e sul da Índia
Western IndiaSouth India and Sri Lanka
Ilhas do Oceano Índico Central
MaldivesChagos
Baía de Bengala
Eastern IndiaNorthern Bay of Bengal
Andaman
Andaman and Nicobar IslandsAndaman Sea Coral CoastNorthern Sumatran Coast
Oceano Índico Oriental
Western Sumatran CoastSunda StraitJava SeaSouthern Javan CoastFlores SeaSavu SeaTimor SeaWestern Australian Coast