HELCOM RED LIST Biotope Expert Team
Baltic bottoms in the photic zone with more than 10 %, but less than 90 % coverage of both hard and soft substrata. Perennial algae cover at least 10 % of the seabed and more than other perennial attached erect groups. Out of the perennial attached algae, Fucus spp. constitutesat least 50 % of the biovolume.
range: >4.5 psu; Exposure range: low to moderately high; Depth range: photic
zone from about 0.5 to 5 meters and deeper in clear waters.
Fucus vesiculosus, F. radicans, F. serratus maritimus
Lower limit of Fucus belt, amount of epiphytic algae, density of Fucus
Sea up to the Quark in the north and central Gulf of Finland in the east
2.8 Mixed sediment bottoms
2.8.2 Sublittoral photic zone
18.104.22.168 Dominated by macrophyte vegetation
A5 Sublittoral sediment
A5.5 Sublittoral macrophyte-dominated sediment
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