marine ecoregions 01 (Biogeographic realm) Arctic 02 (Biogeographic realm) Temperate Northern Atlantic 03 (Biogeographic realm) Temperate Northern Pacific 04 (Biogeographic realm) Tropical Atlantic 05 (Biogeographic realm) Western Indo-Pacific 06 (Biogeographic realm) Central Indo-Pacific 07 (Biogeographic realm) Eastern Indo-Pacific 08 (Biogeographic realm) Tropical Eastern Pacific 09 (Biogeographic realm) Temperate South America 10 (Biogeographic realm) Temperate Southern Africa 11 (Biogeographic realm) Temperate Australasia 12 (Biogeographic realm) Southern Ocean