EUNIS habitat classification 2012 amended 2019 > A - Marine habitats > A5 - Sublittoral sediment > A5.3 - Sublittoral mud > A5.37 - Deep circalittoral mud > A5.374 - Capitella capitata and Thyasira spp. in organically-enriched offshore circalittoral mud and sandy mud

Capitella capitata and Thyasira spp. in organically-enriched offshore circalittoral mud and sandy mud

English name: Capitella capitata and Thyasira spp. in organically-enriched offshore circalittoral mud and sandy mud

Description (English)

In circalittoral and deep offshore mud and sandy mud adjacent to oil or gas platforms, organic enrichment from drill cuttings leads to the development of communities dominated by the Capitella capitata, an opportunist especially associated with organically enriched and polluted sediments as described for A5.336 (Warren 1977; Pearson & Rosenberg 1978). The bivalves Thyasira flexuosa or Thyasira sarsi may also be found in moderate numbers at some sites. Other taxa may be present in low numbers in areas of less severe enrichment including Pholoe inornata, Lagis koreni, Philine scabra, Anaitides groenlandica, Mediomastus fragilis and Paramphinome jeffreysii.

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code A5.374
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 Capitella capitata
Invertebrates Mediomastus fragilis
Invertebrates Paramphinome jeffreysii
Invertebrates Philine scabra
Invertebrates Pholoe inornata
Invertebrates Thyasira flexuosa
Invertebrates Thyasira sarsi
Species scientific name English common name Species group
Capitella capitata Invertebrates
Mediomastus fragilis Invertebrates
Paramphinome jeffreysii Invertebrates
Philine scabra Invertebrates
Pholoe inornata Invertebrates
Thyasira flexuosa Invertebrates
Thyasira sarsi Invertebrates

Other classifications

Classification Code Habitat type name Relationship type
Marine Habitat Classification Britain/Ireland 0405 SS.SMu.OMu.CapThy <I>Capitella capitata</I> and <I>Thyasira</I> spp. in organically-enriched 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 A5.374 Capitella capitata and Thyasira spp. in organically-enriched offshore circalittoral mud and sandy mud same
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