RED LIST Biotope Expert Team
Baltic bottoms in the aphotic zone with at least
90 % coverage of rock, boulders or stones of more than 63 mm in diameter. Sessile/semi-sessile
epibenthic cnidarians cover at least 10 % of the seabed and more than
other perennial attached erect groups.
Substrate is rock and boulders. Depth is typically 20 meters
sea anemones, corals
Diversity, abundance and biomass of fauna.
Whole Baltic Sea
2.1 Rocky bottoms
2.1.1 Aphotic zone
2.2 Stony bottoms
2.2.1 Aphotic zone
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HELCOM HUB: Technical Report on the HELCOM Underwater Biotope and habitat classification BSEP 139