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Concept: [Laminaria hyperborea] park with dense foliose red seaweeds on exposed lower infralittoral rock in the eunishabitats vocabulary

Concept URI http://eunis.eea.europa.eu/eunishabitats/A3.1152
Preferred label [Laminaria hyperborea] park with dense foliose red seaweeds on exposed lower infralittoral rock
Definition Very exposed to exposed lower infralittoral bedrock or large boulders characterised by a kelp park of [Laminaria hyperborea] with a dense turf of foliose red seaweeds and encrusting coralline algae. These red seaweeds dominate kelp stipes and bedrock in a similar abundance and composition to the upper infralittoral kelp forest, the most commonly occurring species being [Callophyllis laciniata], [Cryptopleura ramosa], [Plocamium cartilagineum], [Kallymenia reniformis], [Delesseria sanguinea], [Phycodrys rubens], [Hypoglossum hypoglossoides], [Heterosiphonia plumosa] and [Bonnemaisonia asparagoides]. In addition, moderate to high abundance of foliose brown seaweeds, such as [Dictyota dichotoma] are more common than in the kelp forest above. More upper circalittoral fauna occur in the park than in the kelp forest, such as the cup-coral [Caryophyllia smithii]. Some species more often present in the kelp park than the forest include the anthozoan [Alcyonium digitatum] and the featherstar [Antedon bifida]. The urchin [Echinus esculentus], the gastropods [Gibbula cineraria] and [Calliostoma zizyphinum] and the starfish [Asterias rubens] are normally present underneath the canopy along with the anthozoans [Urticina felina] and [Corynactis viridis]. The sponge [Cliona celata] is also present often found boring into shells or soft rock where available. The bryozoan [Membranipora membranacea] can be found on the [L. hyperborea] fronds along with the hydroid [Obelia geniculata] and the ascidian [Botryllus schlosseri]. The polychaete [Pomatoceros] sp. is present on the rock surface. Situation: This biotope usually occurs below the exposed kelp forests (LhypFa and LhypR.Ft). At some sites, a dense band of [D. dichotoma] may form a separate zone below (FoR). Where seasonally unstable cobbles and/or boulders are present adjacent to and/or below the bedrock supporting the [L. hyperborea] LsacSac may occur. Temporal variation: In the late summer both the kelp and the foliose seaweeds can become heavily encrusted with the bryozoan crusts [Electra pilosa] and [Membranipora membranacea]. Temporal variation within the community structure is unknown.
Notation A3.1152
Status Valid
Status Modified 2014-01-31
Accepted Date 2014-01-31
Not Accepted Date
Has broader
Has exact match