EUNIS habitat classification 2012 amended 2019 > A - Marine habitats > A5 - Sublittoral sediment > A5.4 - Sublittoral mixed sediments > A5.43 - Infralittoral mixed sediments > A5.435 - Ostrea edulis beds on shallow sublittoral muddy mixed sediment

Ostrea edulis beds on shallow sublittoral muddy mixed sediment

English name: Oyster beds on shallow sublittoral muddy mixed sediment

Description (English)

Dense beds of the oyster Ostrea edulis can occur on muddy fine sand or sandy mud mixed sediments. There may be considerable quantities of dead oyster shell making up a substantial portion of the substratum. The clumps of dead shells and oysters can support large numbers of Ascidiella aspersa and Ascidiella scabra. Sponges such as Halichondria bowerbanki may also be present. Several conspicuously large polychaetes, such as Chaetopterus variopedatus and terebellids, as well as additional suspension-feeding polychaetes such as Myxicola infundibulum and Sabella pavonina may be important in distinguishing this biotope, whilst the Opisthobranch Philine aperta may also be frequent in some areas. A turf of seaweeds such as Plocamium cartilagineum, Nitophyllum punctatum and Spyridia filamentosa may also be present. This biotope description may need expansion to account for oyster beds in England.

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code A5.435
Bern Convention Included in a Resolution 4 habitat type at a higher level (A5)

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

Invertebrates Ascidiella aspersa
Invertebrates Ascidiella scabra
Invertebrates Chaetopterus variopedatus
Invertebrates Halichondria bowerbanki
Invertebrates Myxicola infundibulum
Algae Nitophyllum punctatum
Invertebrates Ostrea edulis
Invertebrates Philine aperta
Algae Plocamium cartilagineum
Invertebrates Sabella pavonina
Algae Spyridia filamentosa
Species scientific name English common name Species group
Ascidiella aspersa Invertebrates
Ascidiella scabra Invertebrates
Chaetopterus variopedatus Invertebrates
Halichondria bowerbanki Invertebrates
Myxicola infundibulum Invertebrates
Nitophyllum punctatum Algae
Ostrea edulis Flat oyster Invertebrates
Philine aperta Invertebrates
Plocamium cartilagineum Algae
Sabella pavonina Invertebrates
Spyridia filamentosa Algae

Other classifications

Classification Code Habitat type name Relationship type
Marine Habitat Classification Britain/Ireland 0405 SS.SMx.IMx.Ost <I>Ostrea edulis</I> beds on shallow sublittoral muddy mixed sediment source
CORINE Land Cover 5.2.3. Sea and ocean n/a
For relation to plant communities (syntaxa), see Vegetation types

History

Classification Code Habitat type name Relationship type
EUNIS Habitat Classification 200410 A5.435 Ostrea edulis beds on shallow sublittoral muddy mixed sediment same
EUNIS Habitat Classification 200308 A4.631 Ostrea edulis beds on shallow sublittoral muddy sediment same
EUNIS Habitat Classification 200308 A4.63 Oyster beds wider
EUNIS Habitat Classification 200202 A4.631 Ostrea edulis beds on shallow sublittoral muddy sediment same
EUNIS Habitat Classification 200202 A4.63 Oyster beds wider
EUNIS Habitat Classification 199910 A4.43 Oyster beds wider
EUNIS Habitat Classification 199910 A4.431 Ostrea edulis beds on shallow sublittoral muddy sediment same
EUNIS Habitat Classification 199811 A4.43 Ostrea edulis beds wider
EUNIS Habitat Classification 199712 A4.42 Oyster beds same
MNCR BioMar 97.06 (Britain & Ireland) IMX.Oy Oyster beds wider
MNCR BioMar 97.06 (Britain & Ireland) IMX.Oy.Ost Ostrea edulis beds on shallow sublittoral muddy sediment same
MNCR BioMar 96.7 (Britain & Ireland) IMX.Ost   narrower
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