Concept: Features of circalittoral rock in the eunishabitats vocabulary

Concept URI	http://eunis.eea.europa.eu/eunishabitats/A4.7
Preferred label	Features of circalittoral rock
Definition	Circalittoral rock features include circalittoral fouling communities (A4.72) and circalittoral caves and overhangs (A4.71). These features are present throughout the circalittoral zone in a variety of wave exposures and tidal streams. Two fouling subtypes have also been identified: A4.722 has been recorded from disused fishing nets and other artificial substrata, and is characterised by aggregations of [Ascidiella aspersa] whilst A4.721 has been recorded from steel wrecks, and is characterised by dense aggregations of [Alcyonium digitatum] and [Metridium senile]. Habitats in hard substrata in the circalittoral zone characterised by the presence of seeping or bubbling gases, oils or water are also included (A4.73).
Notation	A4.7
Status	Valid
Status Modified	2014-01-31
Accepted Date	2014-01-31
Not Accepted Date
Has broader	A4 (Circalittoral rock and other hard substrata) in biodiversity/eunishabitats
Has narrower	A4.71 (Communities of circalittoral caves and overhangs) in biodiversity/eunishabitats A4.72 (Circalittoral fouling faunal communities) in biodiversity/eunishabitats A4.73 (Vents and seeps in circalittoral rock) in biodiversity/eunishabitats
Has exact match	http://eunis.eea.europa.eu/habitats/5421