| Concept URI | http://eunis.eea.europa.eu/eunishabitats/A3.2131 |
|---|---|
| Preferred label | [Laminaria hyperborea] forest and foliose red seaweeds on tide-swept upper infralittoral mixed substrata |
| Definition | Moderately wave-exposed to wave sheltered, tide-swept mixed substrata, with dense [Laminaria hyperborea] forest and sparser [Laminaria saccharina], characterised by an under-storey and stipe flora of foliose seaweeds. The kelp stipes support epiphytes such as [Palmaria palmata] [Callophyllis laciniata], [Cryptopleura ramosa], [Membranoptera alata], and [Phycodrys rubens]. At some sites, instead of being covered by red seaweeds, the kelp stipes are heavily encrusted by the ascidians [Botryllus schlosseri] and in the south-west [Distomus variolosus]. Epilithic seaweeds ([Delesseria sanguinea, Plocamium cartilagineum, Odonthalia dentata, Dictyota dichotoma] and [Desmarestia aculeata]) and crustose seaweeds commonly occur beneath the kelp. The kelp fronds are often covered with growth of the hydroid [Obelia geniculata] or the bryozoan [Membranipora membranacea]. Although these species are also found in most kelp forests, in this biotope they are particularly dense. On the rock surface, a rich fauna comprising anthozoans such as [Urticina felina], the barnacle [Balanus crenatus], the calcareous tubeworm [Pomatoceros triqueter], colonial ascidians such as [Clavelina lepadiformis], the gastropods [Calliostoma zizyphinum] and [Gibbula cineraria], and the bryozoans [Electra pilosa] and [Alcyonidium diaphanum] occur. Also found on the rock are the echinoderms [Echinus esculentus, Asterias rubens and Ophiothrix fragilis], and the crabs [Cancer pagurus, Pagurus bernhardus] and [Necora puber]. |
| Notation | A3.2131 |
| 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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