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Concept: [Alcyonium digitatum] with dense [Tubularia indivisa] and anemones on strongly tide-swept circalittoral rock in the eunishabitats vocabulary

Concept URI http://eunis.eea.europa.eu/eunishabitats/A4.1122
Preferred label [Alcyonium digitatum] with dense [Tubularia indivisa] and anemones on strongly tide-swept circalittoral rock
Definition This variant is typically found on exposed circalittoral bedrock and boulders in sounds, narrows and around tide-swept promontories in accelerated tidal streams. It is dominated by aggregations of dead man's fingers [Alcyonium digitatum], and dense clumps or continuous cover of the robust hydroid [Tubularia indivisa], particularly on prominent ledges and ridges. Anemones such as [Sagartia elegans], [Urticina felina], [Metridium senile], [Actinothoe sphyrodeta] and [Corynactis virdis] form a prominent component of the community. Occasionally, massive sponges such as [Pachymatisma johnstonia] and [Esperiopsis fucorum] may be present. Encrusting species such as the polychaete [Pomatoceros triqueter] and the barnacle [Balanus crenatus] may be dotted around the rocks, and the top shell [Calliostoma zizyphinum] may also be observed. Clumps of the bryozoan [Flustra foliacea] are occasionally seen. The starfish [Asterias rubens] may be seen amongst a patchy turf of [Crisia denticulata] and the bryozoan [Alcyonidium diaphanum]. This variant may also be found on tideswept wrecks and other artificial sustratum. Situation: Above this biotope, it is usual to find well-developed kelp forest in the upper infralittoral, dominated by [Laminaria hyperborea] (LhypR). In the lower infralittoral, it is usual to find a tide-swept turf of hydroids and red algae.
Notation A4.1122
Status Valid
Status Modified 2014-01-31
Accepted Date 2014-01-31
Not Accepted Date
Has broader
Has exact match