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. Perennial attached algae covers at least 10 % of the seabed, and more than other perennial attached erect groups. Out of the perennial attached algae kelp constitutes at least 50 % of the biovolume.
Salinity range: >11 psu; Exposure range: all, more common in exposed areas; Depth range: photic zone usually from about 2 to 10 meters
Substrate is rock and/or boulders. Depth is typically from 2 to 10 meters, also deeper in areas with clear water. Appears in all wave exposure classes.
Saccharina latissima, Laminaria digitata
Lower limit of vegetation, amount of epiphytic algae
Kattegat, the Sound and Belt Sea
HELCOM 1998: 184.108.40.206.2 Sublittoral level soft rock bottoms dominated by macrophyte vegetation 220.127.116.11 Sublittoral level stony bottoms dominated by 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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