MB6-246 - Capitella capitata dans des sédiments vaseux enrichis de l'infralittoral en Atlantique (EUNIS 2022)

MB6-246 - Capitella capitata dans des sédiments vaseux enrichis de l'infralittoral en Atlantique

Capitella capitata in enriched Atlantic infralittoral muddy sediments

MB6-245 - Ampeliscaspp., Photis longicaudata et autres amphipodes tubicoles et polychètes dans la vase sableuse de l'infralittoral en Atlantique

MB6-247 - Cerastoderma edule et Abra nitida dans de la vase de l'infralittoral en Atlantique

Classification des habitats EUNIS 2022

Descriptif de l'habitat

The polychaete Capitella capitata (agg.) a widely-occurring, opportunist species complex that is particularly associated with organically enriched and polluted sediments (Warren 1977; Pearson & Rosenberg 1978) where it may be superabundant. In very polluted/disturbed areas only Capitella, Nematodes and occasional Malacoceros fuliginosus may be found whilst in slightly less enriched areas and estuaries species such as Tubificoides, Cirriformia tentaculata, Pygospio elegans and Polydora ciliata may also be found. In some areas e.g. the Tees estuary, high numbers of the polychaete Ophryotrocha may also be present. MB6-246 may become established as a result of anthropogenic activities such as fish farming and sewerage effluent but may also occur with natural enrichment as a result of, for example, coastal bird roosts. This biotope may also occur to some extent in the intertidal and in estuaries.
Situation: This biotope typically occurs in marine inlets, embayments or estuaries where organic enrichment allows C. capitata to out compete other taxa, although the species may also occur in enriched muddy coastal sediments and also offshore where there is a high organic input from adjacent oil drilling platforms (units MD6-216 & MD6-2161).

Bibliography

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