HELCOM RED LIST Biotope Expert Team
Baltic bottoms in the photic zone with at least 90 % coverage of FeMn concretions
Salinity range: All; Exposure range: All; Depth range: Photic zone down from 10 meters
hotic zone areas covered by ferromanganese concretions.
Gulf of Finland, Bothnian Bay, Bothnian Sea, Gulf of Riga, Baltic Proper, smaller occurrences possible in the whole Baltic Sea
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