| Concept URI | http://eunis.eea.europa.eu/eunishabitats/A3.314 |
|---|---|
| Preferred label | Silted cape-form [Laminaria hyperborea] on very sheltered infralittoral rock |
| Definition | Cape-form of the kelp [Laminaria hyperborea] on very silted rock, particularly in extremely sheltered sealochs of western Scotland. Below the huge kelp fronds (which often trail onto the seabed) foliose seaweeds form a silted understorey on the rock including [Phycodrys rubens, Delesseria sanguinea, Cryptopleura ramosa] and [Plocamium cartilagineum] as well as coralline crusts. At some sites the filamentous red seaweed [Bonnemaisonia hamifera, Heterosiphonia plumosa] and [Brongniartella byssoides] may carpet the seabed. Ascidians, particularly [Ascidiella aspersa], [Ascidia mentula, Ciona intestinalis] and [Clavelina lepadiformis] thrive well in these conditions. The echinoderms [Antedon bifida, Echinus esculentus] and [Asterias rubens] are often present along with the gastropod [Gibbula cineraria]. An abundant growth of the hydroid [Obelia geniculata] can cover the silted kelp fronds along with the bryozoan [Membranipora membranacea]. The anthozoan [Caryophyllia smithii] can be present among the kelp holdfasts. The tube-building polychaete [Pomatoceros triqueter] can be present on the rock surface along with the crab [Necora puber]. This biotope generally occurs on shallow bedrock or boulder slopes or isolated rocks protruding through muddy sediment. Situation: This biotope is often present on rocky outcrops surrounded by muddy sediments (such as VirOphPmax). Deeper, nearby rock, beyond the limit of foliose seaweeds, is often dominated by solitary ascidians (AmenCio). |
| Notation | A3.314 |
| Status | Valid |
| Status Modified | 2014-01-31 |
| Accepted Date | 2014-01-31 |
| Not Accepted Date | |
| Has broader | |
| Has exact match |
European Environment Agency
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