Concept: [Sabellaria spinulosa], didemnid and small ascidians on tide-swept moderately wave-exposed circalittoral rock in the eunishabitats vocabulary

Concept URI http://eunis.eea.europa.eu/eunishabitats/A4.2212
Preferred label [Sabellaria spinulosa], didemnid and small ascidians on tide-swept moderately wave-exposed circalittoral rock
Definition This variant is typically found on tide-swept, moderately wave-exposed circalittoral bedrock, boulders and cobbles subject to slight sand-scour. It occurs predominantly in the lower circalittoral. This variant normally appears as a bedrock/boulder outcrop or reef with a dense crust of the polychaete [Sabellaria spinulosa] and a dense turf of didemnid ascidians and scour-tolerant bryozoans such as [Flustra foliacea], [Pentapora foliacea] and [Cellaria] species. There may be discreet clumps of [Alcyonium digitatum] and sparse sponges such as [Tethya aurantium] and [Phorbas fictitius]. Patchy occurrences of the small ascidians [Polycarpa scuba], [Polycarpa pomaria] and [Distomus variolosus] may be present on the tops of rocks and boulders whilst in crevices between, the anemone [Urticina felina] may be found. Species such as [Asterias rubens], [Crossaster papposus], the serpulid worm [Salmacina dysteri] and the anemone [Sagartia elegans] are occasionally seen on the rock surface. This variant has been recorded from the Lleyn Peninsula, the Skerries and around Pembrokeshire in Wales.
Notation A4.2212
Status Valid
Status Modified 2014-01-31
Accepted Date 2014-01-31
Not Accepted Date
Has broader
Has exact match