HELCOM RED LIST Biotope Expert Team
Baltic bottoms in the photic zone with less than 90% coverage of a certain substrate type. Mixed substrates comprise any proportion of mix of any substrate type of soft/mobile and/or hard/non-mobile substrates. Coverage of sessile macroscopic epifauna is ≥10%.
Salinity range: All; Exposure range: All; Depth range: Below photic zone ‑ more common on elevations.
Mytilus spp., Cordylophora caspia, Balanus improvisus
Aphotic zone areas with less than 90% coverage of a certain substrate type. Coverage of sessile macroscopic epifauna is ≥10%.
Whole Baltic Sea
2.8 Mixed sediment bottoms
2.8.1 Aphotic zone
A5 Sublittoral sediment
A5.4 : Sublittoral mixed sediments
A5.41 : Sublittoral mixed sediment in low or reduced salinity
A5.412 : Baltic mixed sediment bottoms of the aphotic zone
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