Thyasira spp. and Nuculoma tenuis in Atlantic circalittoral sandy mud
Description (English)
Circalittoral cohesive sandy muds with small quantities of gravel, off sheltered or moderately exposed coasts may support populations characterised by Thyasira spp. and in particular Thyasira flexuosa. Other characteristic taxa may include Nuculoma tenuis, Goniada maculate and in some areas Rhodine gracilior. Mysella bidentata, Abra alba, Harpinia antennaria and Amphiura filiformis may be abundant in some examples of this biotope. Whilst moderately diverse, animal abundances are often low and it is possible that the biotope is the result of sedimentary disturbance e.g. from trawling and is possibly an impoverished version of MC6-213. Collectively the biotopes MB6-248, MC6-212, MC6-213 and MD5-212, may form the Amphiura dominated components of the 'off-shore muddy sand association' described by other workers (Jones 1951; Thorson 1957; Mackie 1990) and the infralittoral etage described by Glemarec (1973).
Source: EUNIS habitat classification
Quick facts
| EUNIS habitat type | code MC6212 |
|---|---|
| Relation to | Annex I habitat types (EU Habitats Directive) |
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 |
|---|---|---|---|---|---|
| Council Directive 92/43/EEC of 21 May 1992 on the conservation of natural habitats and of wild fauna and flora - consolidated version 01/01/2007 | Annex I: natural habitat types of community interest whose conservation requires the designation of special areas of conservation | Large shallow inlets and bays | 1160 | Overlap | http://ec.europa.eu/environm...rective/index_en.htm |
Vegetation types
Relation to vegetation types (syntaxa)
Not availableSpecies mentioned in habitat description
Invertebrates
Abra alba
Invertebrates
Amphiura filiformis
Invertebrates
Harpinia antennaria
Invertebrates
Mysella bidentata
| Species scientific name | English common name | Species group |
|---|---|---|
| Abra alba | Invertebrates | |
| Amphiura filiformis | Invertebrates | |
| Harpinia antennaria | Invertebrates | |
| Mysella bidentata | Invertebrates |
Other classifications
| Classification | Code | Habitat type name | Relationship type |
|---|---|---|---|
| EUNIS Habitat Classification 2007 (revised descriptions 2012) | A5.352 | Thyasira spp. and Nuculoma tenuis in circalittoral sandy mud | same |
History
| Classification | Code | Habitat type name | Relationship type | Comment |
|---|---|---|---|---|
| EUNIS Habitat Classification 200410 | A5.352 | Thyasira spp. and Nuculoma tenuis in circalittoral sandy mud | same |
