EUNIS habitat classification 2012 amended 2019 > A - Marine habitats > A5 - Sublittoral sediment > A5.1 - Sublittoral coarse sediment > A5.14 - Circalittoral coarse sediment > A5.144 - Neopentadactyla mixta in circalittoral shell gravel or coarse sand

Neopentadactyla mixta in circalittoral shell gravel or coarse sand

English name: 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 available

Species mentioned in habitat description

Invertebrates Chaetopterus variopedatus
Invertebrates Lanice conchilega
Invertebrates Molgula oculata
Invertebrates Neopentadactyla mixta
Invertebrates Ophiopsila annulosa
Invertebrates Ophiura albida
Invertebrates Pecten maximus
Species scientific name English common name Species group
Chaetopterus variopedatus Invertebrates
Lanice conchilega Invertebrates
Molgula oculata Invertebrates
Neopentadactyla mixta Invertebrates
Ophiopsila annulosa Invertebrates
Ophiura albida Invertebrates
Pecten maximus 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
For relation to plant communities (syntaxa), see Vegetation types

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
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