EUNIS habitat classification 2017 > M - Marine benthic habitats > MC6 - Circalittoral mud > MC62 - Atlantic circalittoral mud > MC621 - Faunal communities of Atlantic circalittoral mud > MC6213 - Amphiura filiformis and Nuculoma tenuis in Atlantic circalittoral and offshore muddy sand

Amphiura filiformis and Nuculoma tenuis in Atlantic circalittoral and offshore muddy sand

Description (English)

In cohesive and non-cohesive sandy mud, off moderately exposed coasts in deep water dense populations of Amphiura filiformis with the bivalve Nuculoma tenuis may occur. This biotope together with MB6-248, MC6-212 and MD5-212 may be part of the Amphiura filiformis dominated infralittoral etage described by Glemarec (1973) and part of the 'off-shore muddy sand association' described by other workers (Jones 1951; Mackie 1990). Other species characteristic of this biotope may include the echinoderms Ophiura albida and Echinocardium flavescens and the bivalve Mysella bidentata. Phaxas pellucidus, Owenia fusiformis and Virgularia mirabilis may also be present. At the sediment surface the hydroid Sertularia argentea may be present although only at very low abundances. Variations of this biotope exist in the northern North Sea and it is possible that more than one entity exists for this biotope.

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type	code MC6213
Relation to	Resolution 4 habitat type (used for designation of Emerald sites)

Legal status

Relation to other habitat types mentioned in legal instruments

Legal text	Annex	Name in legal text	Code in legal text	Habitat type relationship	More information
Convention on the conservation of European wildlife and natural habitats	Revised Annex I of Resolution 4 (1996) of the Bern Convention on endangered natural habitats types using the EUNIS habitat classification (year of revision 2010)	Large shallow inlets and bays	1160	Overlap	https://wcd.coe.int/ViewDoc....ckColorLogged=FDC864 Resolution No. 4 (1996) of the Bern Convention lists endangered natural habitats requiring specific conservation measures [and the designation of Areas of Special Conservation Interest (ASCIs) forming the Emerald network]

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

Invertebrates Amphiura filiformis

Invertebrates Echinocardium flavescens

Invertebrates Mysella bidentata

Invertebrates Ophiura albida

Invertebrates Owenia fusiformis

Invertebrates Phaxas pellucidus

Invertebrates Sertularia argentea

Invertebrates Virgularia mirabilis

Species scientific name	English common name	Species group
Amphiura filiformis		Invertebrates
Echinocardium flavescens		Invertebrates
Mysella bidentata		Invertebrates
Ophiura albida		Invertebrates
Owenia fusiformis		Invertebrates
Phaxas pellucidus		Invertebrates
Sertularia argentea		Invertebrates
Virgularia mirabilis		Invertebrates

Other classifications

Classification	Code	Habitat type name	Relationship type
EUNIS Habitat Classification 2007 (revised descriptions 2012)	A5.353	Amphiura filiformis and Nuculoma tenuis in circalittoral and offshore muddy sand	same

For relation to plant communities (syntaxa), see Vegetation types

History

Classification	Code	Habitat type name	Relationship type
EUNIS Habitat Classification 200410	A5.353	Amphiura filiformis and Nuculoma tenuis in circalittoral and offshore muddy sand	same
EUNIS Habitat Classification 200308	A4.272	Amphiura filiformis and Echinocardium cordatum in circalittoral clean or slightly muddy sand	wider
EUNIS Habitat Classification 200202	A4.272	Amphiura filiformis and Echinocardium cordatum in circalittoral clean or slightly muddy sand	overlap
EUNIS Habitat Classification 199910	A4.282	Amphiura filiformis and Echinocardium cordatum in circalittoral clean or slightly muddy sand	overlap
MNCR BioMar 97.06 (Britain & Ireland)	CMS.AfilEcor	Amphiura filiformis and Echinocardium cordatum in circalittoral clean or slightly muddy sand	overlap

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