HELCOM RED LIST Biotope Expert Team
Baltic bottoms in the photic zone with at least 90 % coverage of rock, boulders or stones of more than 63 mm in diameter. Epibenthic chordates cover at least 10%, and more than other perennial attached erect groups. Out of the attached epibenthic chordates, Ascidiacea represent at least 50 % of the biomass.
Substrate is rock and/or boulders.
Ascidiacea: Dendrodoa grossularia, Molgula spp.
Diversity, abundance and biomass of fauna.
Kattegat and Belt Sea
HELCOM 1998: 18.104.22.168.1 Sublittoral level soft rock bottoms with little or no macrophyte vegetation 22.214.171.124.1 Sublittoral level stony bottoms with little or no macrophyte vegetation
EUNIS 2012: A3.4 : Baltic exposed infralittoral rock A3.5 : Baltic moderately exposed infralittoral rock A3.6 : Baltic sheltered infralittoral rock
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