| Concept URI | http://eunis.eea.europa.eu/eunishabitats/A4.2111 |
|---|---|
| Preferred label | [Caryophyllia smithii], [Swiftia pallida] and [Alcyonium glomeratum] on wave-sheltered circalittoral rock |
| Definition | This variant typically occurs on sheltered, ridged, circalittoral bedrock or boulders subject to only weak tidal streams, but may be found in somewhat more exposed conditions. It is found in water depths ranging from 15m to 32m. Commonly occurring [Swiftia pallida] characterises this heavily silted biotope along with [Caryophyllia smithii] and frequent [Alcyonium glomeratum]. Under the silt, bryozoan crusts such as [Parasmittina trispinosa] may be found. There is a strong echinoderm component to the community, with the tentacles of [Aslia lefevrei] frequently seen protruding from crevices in the ridged bedrock. [Holothuria forskali] is often seen on the upper faces of boulders and bedrock. [Marthasterias glacialis], [Asterias rubens], [Echinus esculentus], [Henricia oculata] and [Luidia ciliaris] may also be present. A sparse hydroid turf may also be present, with species such as [Polyplumaria frutescens], [Halecium halecinum] and [Nemertesia antennina]. In addition, there may be anthozoans such as [Isozoanthus sulcatus] and [Corynactis viridis]. The sponge [Suberites carnosus] is typically associated with a heavily silted habitat. Other sponges present include [Cliona celata], [Stelligera stuposa] and [Polymastia boletiformis]. The only records are from the west coast of Ireland. Situation: Usually found on bedrock ridges and outcrops surrounded by sand and muddy gravel. |
| Notation | A4.2111 |
| Status | Valid |
| Status Modified | 2014-01-31 |
| Accepted Date | 2014-01-31 |
| Not Accepted Date | |
| Has broader | |
| Has exact match |
European Environment Agency
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