AB.M2 Baltic aphotic mixed substrate characterized by sparse macroscopic epibenthic biotic structures
Author
HELCOM RED LIST Biotope Expert Team
Textual description
Baltic bottoms in the photic zone with less
than 90% coverage of a certain substrate type. Mixed substrates comprise any
proportion of mix of any substrate type of soft/mobile and/or hard/non-mobile
substrates. Coverage of sessile macroscopic epifauna is 0><10%.
Physical environment
Salinity range: All; Exposure range: All; Depth
range: Below photic zone ‑ more common on elevations.
Mapping advise (habitat delineation,
identification, similar types)
Aphotic zone areas with less than 90% coverage
of a certain substrate type. Coverage of sessile macroscopic epifauna is 0><10%.
Geographic range
Whole Baltic Sea
Correspondence with other classification systems
HELCOM 1998:
2.8 Mixed sediment bottoms
2.8.1 Aphotic zone
EUNIS 2012:
A5 Sublittoral sediment
A5.4 : Sublittoral mixed sediments
A5.41 : Sublittoral mixed sediment in low or reduced salinity
A5.412 : Baltic mixed sediment bottoms of the aphotic zone
http://eunis.eea.europa.eu/habitats/2589