marine ecoregions
   (Biogeographic realm) Southern Ocean
     (Biogeographic province) Scotia Sea
       219 (Marine ecoregion) South Sandwich Islands
       220 (Marine ecoregion) South Georgia
       221 (Marine ecoregion) South Orkney Islands
       222 (Marine ecoregion) South Shetland Islands
       223 (Marine ecoregion) Antarctic Peninsula