MD6-217 - Levinsenia gracilis et Heteromastus filiformis dans de la vase ou de la vase sableuse du circalittoral du large en Atlantique (EUNIS 2022)

MD6-217 - Levinsenia gracilis et Heteromastus filiformis dans de la vase ou de la vase sableuse du circalittoral du large en Atlantique

Levinsenia gracilis and Heteromastus filifirmis in Atlantic offshore circalittoral mud and sandy mud

MD6-216 - Capitella capitata et Thyasira spp. dans de la vase ou de la vase sableuse enrichie en substances organiques du circalittoral du large en Atlantique

MD6-218 - Paramphinome jeffreysii, Thyasira spp. et Amphiura filiformis dans de la vase sableuse du circalittoral du large en Atlantique

Classification des habitats EUNIS 2022

Descriptif de l'habitat

In deep offshore mud and sandy mud a community characterised by the polychaetes Levinsenia gracilis and Heteromastus filiformis may occur. Other important taxa may include Paramphinome jeffreysii, Nephtys hystricis and N. incisa, Spiophanes kroyeri, Orbinia norvegica, Terebellides stroemi, Thyasira gouldi and Thyasira equalis. Burrowing megafauna such as Calocaris macandreae may also be found in this biotope. This biotope has been found in the central and northern North Sea. A similar community, dominated by L. gracilis but accompanied by Glycera spp. (particularly Glycera rouxii) and Monticellina dorsobranchialis, has also been reported from the Irish Sea. This Irish community also contains Calocaris macandreae, Mediomastus fragilis, Tubificoides amplivasatus, Nephtys incisa, Ancistrosyllis groenlandica, Nucula sulcata, Litocorsa stremma and Minuspio sp. and it is not known at present whether this represents a separate biotope or whether it is a geographic variant of a wider Levinsenia biotope.
Situation: This biotope has been found in the central and northern North Sea and may also occur in the Irish Sea

Bibliography

European Topic Centre on Biological Diversity 2022. EUNIS marine habitat classification 2022 including crosswalks. Table Excel. (Source)