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 > A5.3741 - Capitella capitata, Thyasira spp. and Ophryotrocha dubia inorganically-enriched offshore circalittoral mud or sandy mud

Capitella capitata, Thyasira spp. and Ophryotrocha dubia inorganically-enriched offshore circalittoral mud or sandy mud

English name: Capitella capitata, Thyasira spp. and Ophryotrocha dubia inorganically-enriched offshore circalittoral mud or sandy mud

Description (English)

In deep offshore sandy mud adjacent to oil or gas platforms, organic enrichment from drill cuttings leads to the development of communities dominated by the pollution tolerant opportunist Capitella capitata and the polychaete Ophryotrocha dubia (or other species of Ophryotrocha). These species are generally found in extremely high abundances and accompanied by Thyasira spp., Raricirrus beryli, Paramphinome jeffreysii and Chaetozone setosa. Other taxa including Exogone verugera, Pholoe inornata and Idasola simpsoni may also be present.

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code A5.3741
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 Chaetozone setosa
Invertebrates Exogone verugera
Invertebrates Ophryotrocha dubia
Invertebrates Paramphinome jeffreysii
Invertebrates Pholoe inornata
Invertebrates Raricirrus beryli
Species scientific name English common name Species group
Capitella capitata Invertebrates
Chaetozone setosa Invertebrates
Exogone verugera Invertebrates
Ophryotrocha dubia Invertebrates
Paramphinome jeffreysii Invertebrates
Pholoe inornata Invertebrates
Raricirrus beryli Invertebrates

Other classifications

Classification Code Habitat type name Relationship type
Marine Habitat Classification Britain/Ireland 0405 SS.SMu.OMu.CapThy.Odub <I>Capitella capitata</I>, <I>Thyasira</I> spp. and <I>Ophryotrocha dubia</I> in organically-enriched offshore circalittoral 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 A5.3741 Capitella capitata, Thyasira spp. and Ophryotrocha dubia inorganically-enriched offshore circalittoral mud or sandy mud same
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