| Infralittoral rock and biogenic reef |
| Infralittoral coarse sediment |
| Infralittoral mixed sediment |
| Infralittoral sand |
| Infralittoral mud |
| Circalittoral rock and biogenic reef |
| Circalittoral mixed sediment |
| Circalittoral coarse sediment |
| Circalittoral sand |
| Circalittoral mud |
| Offshore circalittoral rock and biogenic reef |
| Offshore circalittoral coarse sediment |
| Offshore circalittoral mixed sediment |
| Offshore circalittoral sand |
| Offshore circalittoral mud |
| Upper bathyal sediment |
|
| Upper bathyal sediment or Upper bathyal rock and biogenic reef |
| Upper bathyal rock and biogenic reef |
| Lower bathyal sediment |
|
| Lower bathyal sediment or Lower bathyal rock and biogenic reef |
| Lower bathyal rock and biogenic reef |
| Unclassified |
| Abyssal |