| Concept URI | http://eunis.eea.europa.eu/eunishabitats/A3.712 |
|---|---|
| Preferred label | Anemones, including [Corynactis viridis,] crustose sponges and colonial ascidians on very exposed or wave surged vertical infralittoral rock |
| Definition | Vertical very exposed and exposed bedrock gullies, tunnels and cave entrances subject to wave-surge dominated by sponge crusts such as [Clathrina coriacea, Myxilla incrustans, Pachymatisma johnstonia] and [Halichondria panicea] and anthozoans such as [Sagartia elegans, Urticina felina, Alcyonium digitatum, Corynactis viridis] and dwarf [Metridium senile] generally dominate the area; the anthozoans often appearing to protrude through the sponge layer. There may be dense aggregations of the hydroid [Tubularia] [indivisa], the cup coral [Caryophyllia smithii] and the colonial ascidians [Botrylloides leachi] and [Polyclinum aurantium]. There may be a short crisiid turf, interspersed with [Scrupocellaria reptans]. Encrusting coralline algae may occur on well-illuminated rock faces. The echinoderms [Asterias rubens], [Marthasterias glacialis], [Echinus esculentus], [Antedon bifida] and [Ophiothrix fragilis], the topshell [Calliostona zizphinum] and the calcareous tubeworm [Pomatoceros triqueter] may also be present on the rock face. The crabs [Cancer pagurus] and [Necora puber] may also be recorded. Due to the wave-surged nature and vertical orientation of these biotopes, kelps are rare and certainly never dominate. |
| Notation | A3.712 |
| Status | Valid |
| Status Modified | 2014-01-31 |
| Accepted Date | 2014-01-31 |
| Not Accepted Date | |
| Has broader | |
| Has exact match |
European Environment Agency
Kgs. Nytorv 6, DK-1050 Copenhagen K, Denmark