EUNIS habitat classification 2012 amended 2019 > A - Marine habitats > A5 - Sublittoral sediment > A5.3 - Sublittoral mud > A5.37 - Deep circalittoral mud > A5.375 - Levinsenia gracilis and Heteromastus filifirmis in offshore circalittoral mud and sandy mud

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

English name: Levinsenia gracilis and Heteromastus filifirmis in offshore circalittoral mud and sandy mud

Description (English)

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

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code A5.375
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 Ancistrosyllis groenlandica
Invertebrates Calocaris macandreae
Invertebrates Heteromastus filiformis
Invertebrates Levinsenia gracilis
Invertebrates Litocorsa stremma
Invertebrates Mediomastus fragilis
Invertebrates Monticellina dorsobranchialis
Invertebrates Nephtys hystricis
Invertebrates Nephtys incisa
Invertebrates Nucula sulcata
Invertebrates Paramphinome jeffreysii
Invertebrates Spiophanes kroyeri
Invertebrates Thyasira equalis
Invertebrates Thyasira gouldi
Invertebrates Tubificoides amplivasatus
Species scientific name English common name Species group
Ancistrosyllis groenlandica Invertebrates
Calocaris macandreae Invertebrates
Heteromastus filiformis Invertebrates
Levinsenia gracilis Invertebrates
Litocorsa stremma Invertebrates
Mediomastus fragilis Invertebrates
Monticellina dorsobranchialis Invertebrates
Nephtys hystricis Invertebrates
Nephtys incisa Invertebrates
Nucula sulcata Invertebrates
Paramphinome jeffreysii Invertebrates
Spiophanes kroyeri Invertebrates
Thyasira equalis Invertebrates
Thyasira gouldi Invertebrates
Tubificoides amplivasatus Invertebrates

Other classifications

Classification Code Habitat type name Relationship type
Marine Habitat Classification Britain/Ireland 0405 SS.SMu.OMu.LevHet <I>Levinsenia gracilis</I> and <I>Heteromastus filifirmis</I> in offshore circalittoral mud and sandy mud 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 A5.375 Levinsenia gracilis and Heteromastus filifirmis in offshore circalittoral mud and sandy mud same
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