AA.M4U Baltic photic mixed substrate characterized by no macrocommunity


HELCOM RED LIST Biotope Expert Team

Textual description            

Baltic photic zone bottoms with less than 90 % coverage of mixed soft and hard substrata. No macrovegetation, no macro- epi- or infauna

Physical environment       

Substrate is soft or crystalline rock, boulders or stones mixed with mobile substrates such as sand or coarse substrate. Depth range: photic zone

Characteristic species        

meiofauna, bacteria

Geographic range               

Whole Baltic Sea

Correspondence with other classification systems               

HELCOM 1998:

2.8 Mixed sediment bottoms

2.8.2 Sublittoral photic zone With little or no macrophyte vegetation


EUNIS 2012:

A5 Sublittoral sediment

A5.4 : Sublittoral mixed sediments

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

A5.411 : Baltic level mixed sediment bottoms of the infralittoral photic zone with little or no macrophyte vegetation