HELCOM RED LIST Biotope Expert Team
photic bottoms with 10- 90 % coverage of hard (rock/boulders/stone) and
10-90 % soft substrata (e.g. muddy/coarse sediment/sand). Epibenthic moss
animals cover at least 10%of the seabed and more than other perennial attached
erect groups. Out of the epibenthic moss animals, erect moss animals constitute
at least 50 % of the biomass.
is soft or crystalline rock, boulders or stones mixed with mobile substrates
such as sand or coarse substrate.
abundance and biomass of fauna
2.8 Mixed sediment bottoms
2.8.2 Sublittoral photic zone
220.127.116.11 With little or no macrophyte vegetation
A5 Sublittoral sediment
A5.4 : Sublittoral mixed sediments
A5.41 : Sublittoral mixed sediment in low or reduced
A5.411 : Baltic level mixed sediment bottoms of the
infralittoral photic zone with little or no macrophyte vegetation
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This biotope has been listed as Near Threatened (NT) in the HELCOM Red List of Baltic Sea biotopes and habitats.