Neopentadactyla mixta in circalittoral shell gravel or coarse sand
Description (English)
Sublittoral plains of clean, shell, maerl and / or stone gravels or sometimes coarse sands, with frequent Neopentadactyla mixta. Pecten maximus may occur occasionally along with Lanice conchilega. Other epifaunal species may include Ophiura albida, Pagurus spp. and Callionymus spp. These sediments may be thrown into dunes by wave action or tidal streams. Widespread species such as Cerianthus lloydii and Chaetopterus variopedatus are present in many examples of this biotope. Scarcely recorded species such as Molgula oculata, Ophiopsila annulosa and Amphiura securigera may also be found. O. annulosa only occurs in records from the south-west of the British Isles. It should be noted that Neopentadactyla may exhibit periodicity in its projection out of, and retraction into, the sediment (Picton 1993).This biotope may be an epibiotic overlay of unit A5.142.
Situation: This biotope may occur adjacent to maerl beds and to some extent in the lower infralittoral where some seaweeds may occur in low abundances.
Source: EUNIS habitat classification
Quick facts
| EUNIS habitat type | code A5.144 |
|---|---|
| Bern Convention | Included in a Resolution 4 habitat type at a higher level (A5) |
Vegetation types
Relation to vegetation types (syntaxa)
Not availableSpecies mentioned in habitat description
Invertebrates
Lanice conchilega
Invertebrates
Molgula oculata
Invertebrates
Ophiopsila annulosa
Invertebrates
Ophiura albida
| Species scientific name | English common name | Species group |
|---|---|---|
| Lanice conchilega | Invertebrates | |
| Molgula oculata | Invertebrates | |
| Ophiopsila annulosa | Invertebrates | |
| Ophiura albida | Invertebrates |
Other classifications
| Classification | Code | Habitat type name | Relationship type |
|---|---|---|---|
| Marine Habitat Classification Britain/Ireland 0405 | SS.SCS.CCS.Nmix | <I>Neopentadactyla mixta</I> in circalittoral shell gravel or coarse sand | source |
| CORINE Land Cover | 5.2.3. | Sea and ocean | n/a |
History
| Classification | Code | Habitat type name | Relationship type |
|---|---|---|---|
| EUNIS Habitat Classification 200410 | A5.134 | Neopentadactyla mixta in circalittoral shell gravel or coarse sand | same |
| EUNIS Habitat Classification 200308 | A4.1311 | Neopentadactyla mixta in circalittoral shell gravel or coarse sand | same |
| EUNIS Habitat Classification 200202 | A4.1311 | Neopentadactyla mixta and venerid bivalves in circalittoral shell gravel or coarse sand | same |
| EUNIS Habitat Classification 199910 | A4.1411 | Neopentadactyla mixta and venerid bivalves in circalittoral shell gravel or coarse sand | same |
| MNCR BioMar 97.06 (Britain & Ireland) | CGS.Ven.Neo | Neopentadactyla mixta and venerid bivalves in circalittoral shell gravel or coarse sand | same |
