Baltic infralittoral rock and boulders characterized by sparse Mytilidae

Baltic bottoms in the photic zone with at least 90 % coverage of rock, boulders or stones of more than 63 mm in diameter. Epibenthic bivalves cover less then 10% of the seabed and more than other perennial attached erect groups. Out of the epibenthic bivalves Mytilidae constitute at least 50 % of the biomass.$$$Physical environment $$$Substrate is rock and/or boulders. Depth is typically from 5 to 20 meters. Appears in all wave exposure classes. Salinity must be at least 5 psu.$$$Characteristic species $$$Mytilus spp. and Modiolus modiolus$$$Quality descriptors $$$Amount of sediment and epiphytic annual algae. Diversity, abundance and biomass of fauna.$$$Geographic range $$$Baltic Sea up to the Quark in the North.

Código Eunis 2021: MB1351