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Concept: [Semibalanus balanoides] and [Littorina] spp. on exposed to moderately exposed eulittoral boulders and cobbles in the eunishabitats vocabulary

Concept URI http://eunis.eea.europa.eu/eunishabitats/A1.1133
Preferred label [Semibalanus balanoides] and [Littorina] spp. on exposed to moderately exposed eulittoral boulders and cobbles
Definition Large patches of boulders, cobbles and pebbles in the eulittoral zone on exposed to moderately exposed shores colonised by the barnacle [Semibalanus balanoides] and, on larger rocks, the limpet [Patella vulgata]. The winkles [Littorina littorea] and [Littorina saxatilis] and the whelk [Nucella lapillus] are typically found in high numbers on and around cobbles and smaller boulders, while the anemone [Actinia equina] occurs in damp areas between and underneath larger boulders. Between the cobbles and pebbles, the mussel [Mytilus edulis] occasionally occurs, but always at low abundance, as do the crab [Carcinus maenas] and gammarid amphipods. Ephemeral green seaweeds such as [Enteromorpha intestinalis] may cover cobbles and boulders. The foliose red seaweeds [Chondrus crispus, Mastocarpus stellatus] and [Osmundea pinnatifida] as well as the wrack [Fucus vesiculosus] may also occur in low abundance on cobbles and boulders. The top shells [Gibbula cineraria] and [Gibbula umbilicalis] can, on more sheltered shores, be found among the seaweeds or underneath the boulders. The barnacle [Elminius modestus] is present on some shores. Situation: On exposed shores with large boulders Sem.LlitX is found below the black lichen [Verrucaria maura] and sparse barnacles biotope (Ver.Ver or Ver.B) and/or below the [Chthamalus] spp. and [P. vulgata] biotope (Cht). Below this biotope the [Himanthalia elongata] dominated biotopes may occur (Him; Coff). On less exposed shores Sem.LlitX can be found above the [Fucus serratus] biotope on boulders (Fser.Bo). Temporal variation: Seasonally mobile boulders, cobbles and pebbles are likely to have a sparser coverage of flora and fauna, because the rocks can be subject to turning. Ephemeral green seaweeds can dominate during the summer.
Notation A1.1133
Status Valid
Status Modified 2014-01-31
Accepted Date 2014-01-31
Not Accepted Date
Has broader
Has exact match