AB.C Baltic aphotic marl (marlstone rock)


HELCOM RED LIST Biotope Expert Team

Textual description

Baltic bottoms in the aphotic zone with at least 90 % coverage of marl (marlstone rock).

Physical environment

Salinity range: All; Exposure range: All; Depth range: Aphotic zone

Mapping advise (habitat delineation, identification, similar types)

Aphotic zone bottoms of marlstone rock

Geographic range

Around Gotland, likely to occur in German and Danish Baltic Sea waters

Correspondence with other classification systems

HELCOM 1998:
2.1.1Soft rock bottoms zone