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Coral Reefs, Seagrass beds, mangroves, sand and mud shore and intertidal flats, Barrier dunes and their associated lagoons, deltaic floodplains and estuaries, rocky shorelines, reef walls and drop-off areas, sea mounts from the complex marine habitats of PNG. Marine organisms associated with this array of habitats are important components of the rich marine biodiversity of Papua New Guinea. Coral diversity is typically very high in Papua New Guinea's reefs and this is globally significant. In Kimbe Bay of West New Britain, a total of 345 species of coral were reported. This number compares favourably to that of other detailed surveys conducted in Australia, Japan, Indonesia, the Philippines and elsewhere in Papua New Guinea and at the time was amongst the highest ever reported from such a small area. Two thirds of the coral reefs surveyed had high levels of live reef cover (greater than 50%), and many individual sites had extensive areas of very high coral cover (greater than 75%) indicating the near pristine state of the coral reefs at those locations.