HELCOM RED LIST Biotope Expert Team
bottoms in the photic zone with more than 10 %, but less than 90 %
coverage of both hard and soft substrata. Perennial algae covers at least
10 % of the seabed and more than other perennial attached erect groups. Out
of the perennial algae, perennial non-filamentous corticated red algae
constitutes at least 50 % of the biovolume.
range: moderate to high; Exposure range: moderate to high; Depth range: photic
zone from about 3 meters.
limit of vegetation, amount of epiphytic algae
Sea up to the Archipelago Sea in the north and central Gulf of Finland in the
2.8 Mixed sediment bottoms
2.8.2 Sublittoral photic zone
188.8.131.52 Dominated by macrophyte vegetation
A5 Sublittoral sediment
A5.5 Sublittoral macrophyte-dominated sediment
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