AA.M1H2 Baltic photic mixed substrate dominated by erect moss animals (Flustra foliacea)


Author                                     

HELCOM RED LIST Biotope Expert Team

Textual description            

Baltic photic bottoms with 10- 90 % coverage of hard (rock/boulders/stone) and 10-90 % soft substrata (e.g. muddy/coarse sediment/sand). Epibenthic moss animals cover at least 10%of the seabed and more than other perennial attached erect groups. Out of the epibenthic moss animals, erect moss animals constitute at least 50 % of the biomass.

Physical environment       

Substrate is soft or crystalline rock, boulders or stones mixed with mobile substrates such as sand or coarse substrate.

Characteristic species        

Flustra foliacea

QUALITY DESCRIPTORS

Diversity, abundance and biomass of fauna

Geographic range               

Southern Baltic Sea

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


 related information

This biotope has been listed as Near Threatened (NT) in the HELCOM Red List of Baltic Sea biotopes and habitats.

See the Biotope Information Sheet of AA.M1H2


 Publications