Mytilus edulis beds on Atlantic circalittoral sediment

Description (English)

Shallow sublittoral mixed sediment, in fully marine coastal habitats or sometimes in variable salinity conditions in the outer regions of estuaries, are characterised by beds of the common mussel Mytilus edulis. Other characterising infaunal species may include the amphipod Gammarus salinus and oligochaetes of the genus Tubificoides. The polychaetes Harmothoe spp., Kefersteinia cirrata and Heteromastus filiformis are also important. Epifaunal species in addition to the M. edulis include the whelks Nucella lapillus and Buccinum undatum, the common starfish Asterias rubens the spider crab Maja squinado and the anemone Urticina felina. Relatively few records are available for this biotope and it is possible that as more data is accumulated separate estuarine and fully marine sub-biotopes may be described. Further clarification may also be required with regard to the overlap between littoral and sublittoral mussel beds and with regard to mussel beds biotopes on hard substratum.

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code MC2235
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 Asterias rubens
Invertebrates Buccinum undatum
Invertebrates Gammarus salinus
Invertebrates Maja squinado
Invertebrates Mytilus edulis
Invertebrates Nucella lapillus
Invertebrates Urticina felina
Species scientific name English common name Species group
Asterias rubens Invertebrates
Buccinum undatum Invertebrates
Gammarus salinus Invertebrates
Maja squinado Invertebrates
Mytilus edulis Invertebrates
Nucella lapillus Dog whelk Invertebrates
Urticina felina Invertebrates

Other classifications

Classification Code Habitat type name Relationship type
EUNIS Habitat Classification 2007 (revised descriptions 2012) A5.625 Mytilus edulis beds on sublittoral sediment same
For relation to plant communities (syntaxa), see Vegetation types

History

Classification Code Habitat type name Relationship type Comment
EUNIS Habitat Classification 200410 A5.625 Mytilus edulis beds on sublittoral sediment same
EUNIS Habitat Classification 200202 A4.432 Mytilus edulis beds in variable salinity shallow-water mixed sediment same
EUNIS Habitat Classification 199910 A4.452 Mytilus edulis beds in variable salinity shallow-water mixed sediment same
MNCR BioMar 97.06 (Britain & Ireland) IMX.EstMx.MytV Mytilus edulis beds in variable salinity infralittoral mixed sediment same
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