Na
Macaronesia
Offshore circalittoral sand
Upper bathyal sediment or Upper bathyal rock and biogenic reef
Offshore circalittoral mud
Offshore circalittoral rock and biogenic reef
Upper bathyal rock and biogenic reef
Infralittoral rock and biogenic reef
Western Mediterranean Sea
Infralittoral sand
Circalittoral rock and biogenic reef
Circalittoral sand
Bay of Biscay and the Iberian Coast
Circalittoral mud
Infralittoral mud
Infralittoral coarse sediment
Circalittoral coarse sediment
Circalittoral mixed sediment
Infralittoral mixed sediment
Offshore circalittoral mixed sediment
Offshore circalittoral coarse sediment
Celtic Seas
Black Sea (rest of)
Upper bathyal sediment or Lower bathyal sediment
Black Sea - sea of Azov
Circalittoral mud or Offshore circalittoral mud
Greater North Sea, incl. the Kattegat and the English Channel
Ionian Sea and the Central Mediterranean Sea
Upper bathyal rock and biogenic reef or Lower bathyal rock and biogenic reef
Aegean-Levantine Sea
Adriatic Sea
Black Sea - sea of Marmara
Baltic
North East Atlantic Ocean (rest of)
Iceland Sea
Infralittoral mud or Infralittoral sand
Circalittoral mud or Circalittoral sand
Offshore circalittoral mud or Offshore circalittoral sand
Norwegian Sea
Barents Sea
Upper bathyal sediment