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Concept: [Pomatoceros triqueter] with barnacles and bryozoan crusts on unstable circalittoral cobbles and pebbles in the eunishabitats vocabulary

Concept URI http://eunis.eea.europa.eu/eunishabitats/A5.141
Preferred label [Pomatoceros triqueter] with barnacles and bryozoan crusts on unstable circalittoral cobbles and pebbles
Definition This biotope is characterised by a few ubiquitous robust and/or fast growing ephemeral species which are able to colonise pebbles and unstable cobbles and slates which are regularly moved by wave and tidal action. The main cover organisms tend to be restricted to calcareous tube worms such as [Pomatoceros triqueter] (or [P. lamarcki)], small barnacles including [Balanus crenatus] and [Balanus balanus], and a few bryozoan and coralline algal crusts. Scour action from the mobile substratum prevents colonisation by more delicate species. Occasionally in tide-swept conditions tufts of hydroids such as [Sertularia argentea] and [Hydrallmania falcata] are present. This biotope often grades into SMX.FluHyd which is characterised by large amounts of the above hydroids on stones also covered in [Pomatoceros] and barnacles. The main difference here is that SMX.FluHyd, seems to develop on more stable, consolidated cobbles and pebbles or larger stones set in sediment in moderate tides. These stones may be disturbed in the winter and therefore long-lived and fragile species are not found. Situation: This biotope is found on exposed open coasts as well as at the entrance to marine inlets.
Notation A5.141
Status Valid
Status Modified 2014-01-31
Accepted Date 2014-01-31
Not Accepted Date
Has broader
Has exact match