Hediste diversicolor, Limecola balthica and Eteone longa in Atlantic littoral muddy sand
Description (English)
Fine to very fine muddy sand on the mid shore at the lower extreme of estuaries, and in moderately exposed and sheltered bays and marine inlets, sometimes subject to variable salinity. The infauna is characterised by the polychaetes Eteone longa, Hediste diversicolor (ragworm) and Pygospio elegans, oligochaetes (mostly Tubificoides benedii and T. pseudogaster), the crustaceans Corophium volutator and Crangon crangon, the spire shell Hydrobia ulvae and the baltic tellin Limecola balthica (Macoma balthica). The cockle Cerastoderma edule may be abundant, and the sand gaper Mya arenaria may be superabundant, though these species are not always present, or may be missed in core samples due to their large size. The polychaetes Arenicola marina, Polydora cornuta and Capitella capitata, the shrimp Crangon crangon, and the Mussel Mytilus edulis are sometimes present.
Situation: This unit can occur on the mid shore of sheltered, lower estuaries, with the MA6-22 communities in muddier sediments on the lower shore. Under moderately exposed conditions in lower estuaries and towards open coasts, it may occur alongside other muddy sand units such as MA5-252 or MA5-254.
Temporal variation: Enteromorpha spp. or Ulva lactuca may form mats on the surface of the sediment during the summer months, particularly in areas of freshwater influence and/or where there is nutrient enrichment.
Source: EUNIS habitat classification
Quick facts
EUNIS habitat type | code MA5253 |
---|---|
Relation to | Resolution 4 habitat type (used for designation of Emerald sites) |
Legal status
Relation to other habitat types mentioned in legal instruments
Vegetation types
Relation to vegetation types (syntaxa)
Not availableSpecies mentioned in habitat description
Species scientific name | English common name | Species group |
---|---|---|
Ulva lactuca | Algae | |
Arenicola marina | Invertebrates | |
Capitella capitata | Invertebrates | |
Cerastoderma edule | Invertebrates | |
Corophium volutator | Invertebrates | |
Crangon crangon | Invertebrates | |
Eteone longa | Invertebrates | |
Hydrobia ulvae | Invertebrates | |
Macoma balthica | Invertebrates | |
Mya arenaria | Invertebrates | |
Mytilus edulis | Invertebrates | |
Polydora cornuta | Invertebrates | |
Pygospio elegans | Invertebrates | |
Tubificoides benedii | Invertebrates |
Other classifications
Classification | Code | Habitat type name | Relationship type |
---|---|---|---|
EUNIS Habitat Classification 2007 (revised descriptions 2012) | A2.243 | Hediste diversicolor, Macoma balthica and Eteone longa in littoral muddy sand | same |
History
Classification | Code | Habitat type name | Relationship type | Comment |
---|---|---|---|---|
EUNIS Habitat Classification 200410 | A2.243 | Hediste diversicolor, Macoma balthica and Eteone longa in littoral muddy sand | same | |
EUNIS Habitat Classification 200308 | A2.3613 | Hediste diversicolor, Macoma balthica and Mya arenaria in sandy mud shores | overlap | |
EUNIS Habitat Classification 200308 | A2.3611 | Hediste diversicolor, Macoma balthica and Arenicola marina in muddy sand or sandy mud shores | overlap | |
EUNIS Habitat Classification 200308 | A2.253 | Macoma balthica and Arenicola marina in muddy sand shores | overlap | |
EUNIS Habitat Classification 200202 | A2.253 | Macoma balthica and Arenicola marina in muddy sand shores | overlap | |
EUNIS Habitat Classification 200202 | A2.3613 | Hediste diversicolor, Macoma balthica and Mya arenaria in sandy mud shores | overlap | |
EUNIS Habitat Classification 200202 | A2.3611 | Hediste diversicolor, Macoma balthica and Arenicola marina in muddy sand or sandy mud shores | overlap | |
EUNIS Habitat Classification 199910 | A2.223 | Macoma balthica and Arenicola marina in muddy sand shores | overlap | |
EUNIS Habitat Classification 199910 | A2.3113 | Hediste diversicolor, Macoma balthica and Mya arenaria in sandy mud shores | overlap | |
EUNIS Habitat Classification 199910 | A2.3111 | Hediste diversicolor, Macoma balthica and Arenicola marina in muddy sand or sandy mud shores | overlap | |
MNCR BioMar 97.06 (Britain & Ireland) | LMU.SMu.HedMac.Are | Hediste diversicolor, Macoma balthica and Arenicola marina in muddy sand or sandy mud shores | overlap | |
MNCR BioMar 97.06 (Britain & Ireland) | LMS.MS.MacAre | Macoma balthica and Arenicola marina in muddy sand shores | overlap | |
MNCR BioMar 97.06 (Britain & Ireland) | LMU.SMu.HedMac.Mare | Hediste diversicolor, Macoma balthica and Mya arenaria in sandy mud shores | overlap |