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Concept: [Laminaria hyperborea] and foliose red seaweeds on moderately exposed infralittoral rock in the eunishabitats vocabulary

Concept URI http://eunis.eea.europa.eu/eunishabitats/A3.214
Preferred label [Laminaria hyperborea] and foliose red seaweeds on moderately exposed infralittoral rock
Definition Moderately exposed infralittoral bedrock and boulders characterised by a canopy of the kelp [Laminaria hyperborea] beneath which is an under-storey of foliose red seaweeds and coralline crusts. Some red seaweeds can be found as epiphytes on the kelp stipes and include [Delesseria sanguinea] and [Phycodrys rubens]. Other red seaweeds present include the [Plocamium cartilagineum, Callophyllis laciniata, Cryptopleura ramosa] and the brown seaweeds [Dictyota dichotoma] and [Cutleria multifida]. The kelp fronds can be colonised by the hydroid [Obelia geniculata] or the bryozoans [Membranipora membranacea]. The echinoderm [Antedon bifida], the ascidian [Clavelina lepadiformis], the tube-building polychaete [Pomatoceros triqueter], the anthozoans [Alcyonium digitatum] and [Urticina felina] can be found on the rock beneath the canopy. Mobile species often present include the gastropods [Gibbula cineraria] and [Calliostoma zizyphinum] and the echinoderms [Echinus esculentus] and [Asterias rubens]. Five variants has been described: Kelp forest (Lhyp.Ft), kelp park (Lhyp.Pk), grazed kelp forest (Lhyp.GzFt), grazed kelp park (Lhyp.GzPk) and kelp with [Sabellaria spinulosa] reefs (Lhyp.Sab). This suite of biotopes differs from the wave exposed [L. hyperborea] biotopes (KFaR) by having a lower diversity of cushion-forming faunal species. The foliose red seaweed component of the two suites of biotopes may also differ in composition with a tendency for Lhyp to include some more delicate filamentous species.
Notation A3.214
Status Valid
Status Modified 2014-01-31
Accepted Date 2014-01-31
Not Accepted Date
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