AA.M1V Baltic photic mixed substrate characterized by mixed epibenthic macrocommunity


HELCOM RED LIST Biotope Expert Team

Textual description            

Baltic bottoms in the photic zone with more than 10 %, but less than 90 % coverage of both hard and soft substrata. No perennial attached erect group, perennial unattached algae, soft crustose algae or annual algae cover more than 10 % of the seabed.

Physical environment       

Salinity range: moderate to high; Exposure range: all; Depth range: photic zone, more common in the deepest and the most shallow parts.

Geographic range               

Whole Baltic Sea

Correspondence with other classification systems               

HELCOM 1998:

2.8 Mixed sediment bottoms

2.8.2 Sublittoral photic zone


EUNIS 2012:

A5 Sublittoral sediment

A5.4 : Sublittoral mixed sediments

A5.41 : Sublittoral mixed sediment in low or reduced salinity