marine ecoregions (Biogeographic realm) Temperate Australasia 53 (Biogeographic province) Northern New Zealand 54 (Biogeographic province) Southern New Zealand 55 (Biogeographic province) East Central Australian Shelf 56 (Biogeographic province) Southeast Australian Shelf 57 (Biogeographic province) Southwest Australian Shelf 58 (Biogeographic province) West Central Australian Shelf