AA.M4 Baltic photic mixed substrate characterized by no macroscopic 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. No macrovegetation, no macro- epi- or infauna.

Physical environment       

Salinity range: all; Exposure range: all; Depth range: the deepest part of the photic zone                         

Mapping advise (habitat delineation, identification, similar types)             

Baltic bottoms in the photic zone with less than 90% coverage of a certain substrate type. No macrovegetation, no macro- epi- or infauna.

Geographic range               

Whole Baltic Sea

Anthropogenic threats     

Eutrophication

Correspondence with other classification systems               

HELCOM 1998:

2.8 Mixed sediment bottoms

2.8.2 Sublittoral photic zone

2.8.2.1 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

http://eunis.eea.europa.eu/habitats/2590

 Publications

BSEP139.jpg