| Littoral rock and biogenic reef |
| Littoral sediment |
| Littoral undetermined substrate |
| Infralittoral rock and biogenic reef |
| Infralittoral coarse sediment |
| Infralittoral mixed sediment |
| Infralittoral sand |
| Infralittoral mud |
| Infralittoral undetermined substrate |
| Circalittoral rock and biogenic reef |
| Circalittoral coarse sediment |
| Circalittoral mixed sediment |
| Circalittoral sand |
| Circalittoral mud |
| Circalittoral undetermined substrate |
| Offshore circalittoral rock and biogenic reef |
| Offshore circalittoral coarse sediment |
| Offshore circalittoral mixed sediment |
| Offshore circalittoral sand |
| Offshore circalittoral mud |
| Offshore circalittoral undetermined substrate |
| Upper bathyal rock and biogenic reef |
| Upper bathyal sediment |
| Upper bathyal undetermined substrate |
| Lower bathyal rock and biogenic reef |
| Lower bathyal sediment |
| Lower bathyal undetermined substrate |
| Abyssal |
| F1 - Tundra |
| F2 - Arctic, alpine and subalpine scrub |
| F3 - Temperate and mediterranean-montane scrub |
| F4 - Temperate shrub heathland |
| F5 - Maquis, arborescent matorral and thermo-Mediterranean brushes |
| F6 - Garrigue |
| F7 - Spiny Mediterranean heaths (phrygana, hedgehog-heaths and related coastal cliff vegetation) |
| F8 - Thermo-Atlantic xerophytic scrub |
| F9 - Riverine and fen scrubs |
| FB - Shrub plantations |