Baltic infralittoral mixed sediment characterized by sparse Dreissena polymorpha

Description (English)

Baltic bottoms in the photic zone with 10- 90 % coverage of hard (rock/boulders/stone) and 10-90 % soft substrata (e.g. muddy/coarse sediment/sand). Epibenthic bivalves cover at least 10%of the seabed and more than other perennial attached erect groups. Out of the epibenthic bivalves, Zebra mussel constitutes 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. Depth is typically from 2 to 10 meters. Appears in sheltered to moderately exposed areas. Salinity must be less than 5 psu.
Characteristic species
Dreissena polymorpha
Geographic range
Estonian west coast and eastern Gulf of Finland

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code MB4352
Relation to Resolution 4 habitat type (used for designation of Emerald sites)

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

Invertebrates Dreissena polymorpha
Species scientific name English common name Species group
Dreissena polymorpha Invertebrates

Other classifications

Classification Code Habitat type name Relationship type
EUNIS Habitat Classification 2007 (revised descriptions 2012) A5.411 Baltic level mixed sediment bottoms of the infralittoral photic zone with little or no macrophyte vegetation narrower
For relation to plant communities (syntaxa), see Vegetation types

History

Classification Code Habitat type name Relationship type Comment
EUNIS Habitat Classification 200410 A5.411 Baltic level mixed sediment bottoms of the infralittoral photic zone with little or no macrophyte vegetation same
EUNIS Habitat Classification 200308 A4.434 Baltic level mixed sediment bottoms of the infralittoral photic zone with little or no macrophyte vegetation same
EUNIS Habitat Classification 200202 A4.434 Baltic level mixed sediment bottoms of the infralittoral photic zone with little or no macrophyte vegetation same
EUNIS Habitat Classification 199910 A4.454 Baltic level mixed sediment bottoms of the infralittoral photic zone with little or no macrophyte vegetation same
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