marine ecoregions
   (Biogeographic realm) Southern Ocean
     (Biogeographic province) Continental High Antarctic
       224 (Marine ecoregion) East Antarctic Wilkes Land
       225 (Marine ecoregion) East Antarctic Enderby Land
       226 (Marine ecoregion) East Antarctic Dronning Maud Land
       227 (Marine ecoregion) Weddell Sea
       228 (Marine ecoregion) Amundsen/Bellingshausen Sea
       229 (Marine ecoregion) Ross Sea