marine ecoregions (Biogeographic realm) Temperate South America 45 (Biogeographic province) Warm Temperate Southeastern Pacific 46 (Biogeographic province) Juan Fernández and Desventuradas 47 (Biogeographic province) Warm Temperate Southwestern Atlantic 48 (Biogeographic province) Magellanic 49 (Biogeographic province) Tristan Gough