EUNIS habitat classification 2017 > M - Marine benthic habitats > MC2 - Circalittoral biogenic habitat > MC23 - Baltic circalittoral biogenic habitat > MC231 - Baltic circalittoral bottoms dominated by epibentic bivalves

Baltic circalittoral bottoms dominated by epibentic bivalves

Description (English)

Baltic circalittoral bottoms in the aphotic zone of various sediments.Sessile/semi-sessile epibenthic bivalves cover at least 10 % of the seabed and more than other perennial attached erect groups.
Physical environment
Substrate is rock and boulders. Depth is typically from approximately20 meters and deeper.
Characteristic species
Mytilus spp.
Geographic range
Whole Baltic Sea

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code MC231
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

Not available

History

Classification Code Habitat type name Relationship type Comment
EUNIS Habitat Classification 200410 A5.6 Sublittoral biogenic reefs same
EUNIS Habitat Classification 200308 A3.72 Sheltered Modiolus beds narrower
EUNIS Habitat Classification 200308 A4.6 Sublittoral biogenic structures same
EUNIS Habitat Classification 200202 A3.72 Sheltered Modiolus beds narrower
EUNIS Habitat Classification 200202 A4.6 Biogenic structures over sublittoral sediments same
EUNIS Habitat Classification 199910 A3.72 Sheltered Modiolus beds narrower
EUNIS Habitat Classification 199910 A4.48 Biogenic beds on sublittoral mixed sediments same
EUNIS Habitat Classification 199811 A3.72 Sheltered Modiolus beds same
EUNIS Habitat Classification 199712 A5.32 Sheltered horse mussel Modiolus beds same
MNCR BioMar 97.06 (Britain & Ireland) SCR.Mod Sheltered Modiolus (horse mussel) beds same
MNCR BioMar 96.7 (Britain & Ireland) SCR.Mod   same
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