marine ecoregions
   (Biogeographic realm) Temperate Northern Atlantic
     (Biogeographic province) Mediterranean Sea
       30 (Marine ecoregion) Adriatic Sea
       31 (Marine ecoregion) Aegean Sea
       32 (Marine ecoregion) Levantine Sea
       33 (Marine ecoregion) Tunisian Plateau/Gulf of Sidra
       34 (Marine ecoregion) Ionian Sea
       35 (Marine ecoregion) Western Mediterranean
       36 (Marine ecoregion) Alboran Sea