Concept: Mixed faunal turf communities on circalittoral rock in the eunishabitats vocabulary

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Concept URI	http://eunis.eea.europa.eu/eunishabitats/A4.13
Preferred label	Mixed faunal turf communities on circalittoral rock
Definition	This habitat type occurs on wave-exposed circalittoral bedrock and boulders, subject to tidal streams ranging from strong to moderately strong. This complex is characterised by its diverse range of hydroids ([Halecium halecinum], [Nemertesia antennina] and [Nemertesia ramosa]), bryozoans ([Alcyonidium diaphanum], [Flustra foliacea], [Bugula flabellata] and [Bugula plumosa]) and sponges ([Scypha ciliata], [Pachymatisma johnstonia], [Cliona celeta], [Raspailia ramosa], [Esperiopsis fucorum], [Hemimycale columella] and [Dysidea fragilis]) forming an often dense, mixed faunal turf. Other species found within this complex are [Alcyonium digitatum], [Urticina felina], [Sagartia elegans], [Actinothoe sphyrodeta], [Caryophyllia smithii], [Pomatoceros triqueter], [Balanus crenatus], [Cancer pagurus], [Necora puber], [Asterias rubens], [Echinus esculentus] and [Clavelina lepadiformis].
Notation	A4.13
Status	Valid
Status Modified	2014-01-31
Accepted Date	2014-01-31
Not Accepted Date
Has broader	A4.1 (Atlantic and Mediterranean high energy circalittoral rock) in biodiversity/eunishabitats
Has narrower	A4.131 (Bryozoan turf and erect sponges on tide-swept circalittoral rock) in biodiversity/eunishabitats A4.132 ([Corynactis viridis] and a mixed turf of crisiids, [Bugula], [Scrupocellaria], and [Cellaria] on moderately tide-swept exposed circalittoral rock) in biodiversity/eunishabitats A4.133 (Mixed turf of hydroids and large ascidians with [Swiftia pallida] and [Caryophyllia smithii] on weakly tide-swept circalittoral rock) in biodiversity/eunishabitats A4.134 ([Flustra foliacea] and colonial ascidians on tide-swept moderately wave-exposed circalittoral rock) in biodiversity/eunishabitats A4.135 (Sparse sponges, [Nemertesia] spp., and [Alcyonidium diaphanum] on circalittoral mixed substrata) in biodiversity/eunishabitats A4.136 ([Suberites] spp. with a mixed turf of crisiids and [Bugula] spp. on heavily silted moderately wave-exposed shallow circalittoral rock) in biodiversity/eunishabitats A4.137 ([Flustra foliacea] and [Haliclona oculata] with a rich faunal turf on tide-swept circalittoral mixed substrata) in biodiversity/eunishabitats A4.138 ([Molgula manhattensis] with a hydroid and bryozoan turf on tide-swept moderately wave-exposed circalittoral rock) in biodiversity/eunishabitats A4.139 (Sponges and anemones on vertical circalittoral bedrock) in biodiversity/eunishabitats
Has exact match	http://eunis.eea.europa.eu/habitats/5418