Polychaete-rich deep Venus community in offshore circalittoral mixed sediment

Description (English)

In offshore circalittoral slightly muddy mixed sediments, a diverse community particularly rich in polychaetes with a significant venerid bivalve component may be found. Typical species include the polychaetes Glycera lapidum , Aonides paucibranchiata , Laonice bahusiensis , Mediomastus fragilis , Lumbrineris gracilis , Pseudomystides limbata , Protomystides bidentata and syllid species and bivalves such as Timoclea ovata , Glycymeris glycymeris , Spisula elliptica and Goodallia triangularis. This biotope has been recorded on surveys of the Lambay and Codling Deeps and other areas of the Irish Sea and collectively with MC3-212 comprise the 'Deep Venus Community' and the 'Boreal Off-Shore Gravel Association' as defined by other workers (Ford 1923; Jones 1950). Some examples of this biotope may have abundant juvenile Modiolus modiolus

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code MD4211

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

Invertebrates Aonides paucibranchiata
Invertebrates Glycera lapidum
Invertebrates Glycymeris glycymeris
Invertebrates Laonice bahusiensis
Invertebrates Lumbrineris gracilis
Invertebrates Mediomastus fragilis
Invertebrates Pseudomystides limbata
Invertebrates Spisula elliptica
Invertebrates Timoclea ovata
Species scientific name English common name Species group
Aonides paucibranchiata Invertebrates
Glycera lapidum Invertebrates
Glycymeris glycymeris Invertebrates
Laonice bahusiensis Invertebrates
Lumbrineris gracilis Invertebrates
Mediomastus fragilis Invertebrates
Pseudomystides limbata Invertebrates
Spisula elliptica Invertebrates
Timoclea ovata Invertebrates

Other classifications

Classification Code Habitat type name Relationship type
EUNIS Habitat Classification 2007 (revised descriptions 2012) A5.451 Polychaete-rich deep Venus community in offshore mixed sediments same
For relation to plant communities (syntaxa), see Vegetation types

History

Classification Code Habitat type name Relationship type Comment
EUNIS Habitat Classification 200410 A5.451 Polychaete-rich deep Venus community in offshore mixed sediments same
EUNIS Habitat Classification 200308 A4.131 Venerid bivalves in circalittoral coarse sand or gravel wider
EUNIS Habitat Classification 200202 A4.131 Venerid bivalves in circalittoral coarse sand or gravel overlap
EUNIS Habitat Classification 199910 A4.141 Venerid bivalves in circalittoral coarse sand or gravel overlap
MNCR BioMar 97.06 (Britain & Ireland) CGS.Ven Venerid bivalves in circalittoral coarse sand or gravel overlap
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