Major biogeographic realms , analogous to the eight terrestrial ecozones , represent large regions of the ocean basins : Arctic , Temperate Northern Atlantic , Temperate Northern Pacific , Tropical Atlantic , Western Indo-Pacific , Central Indo-Pacific , Eastern Indo-Pacific , Tropical Eastern Pacific , Temperate South America , Temperate Southern Africa , Temperate Australasia , Southern Ocean .
Major biogeographic realms , analogous to the seven terrestrial ecozones , represent large regions of the ocean basins : North Temperate Atlantic , Eastern Tropical Atlantic , Western Tropical Atlantic , South Temperate Atlantic , North Temperate Indo-Pacific , Central Indo-Pacific , Eastern Indo-Pacific , Western Indo-Pacific , South Temperate Indo-Pacific , Southern Ocean , Antarctic , Arctic , and Mediterranean .