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Concept: [Porphyra purpurea] or [Enteromorpha] spp. on sand-scoured mid or lower eulittoral rock in the eunishabitats vocabulary

Concept URI http://eunis.eea.europa.eu/eunishabitats/A1.452
Preferred label [Porphyra purpurea] or [Enteromorpha] spp. on sand-scoured mid or lower eulittoral rock
Definition Exposed and moderately exposed mid-shore bedrock and boulders occurring adjacent to areas of sand which significantly affects the rock. As a consequence of sand-abrasion, wracks such as [Fucus vesiculosus] or [Fucus spiralis] are scarce and the community is typically dominated by ephemeral red or green seaweeds, particularly the foliose red seaweed [Porphyra purpurea] and green seaweeds such as [Enteromorpha] spp. Under the blanket of ephemeral seaweeds, the barnacles [Semibalanus balanoides] or [Elminius modestus] and the limpet [Patella vulgata] may occur in the less scoured areas, along with the occasional winkles [Littorina littorea] and [Littorina saxatilis]. Few other species are present. Situation: Usually found below the species impoverished biotope dominated by [Enteromorpha] spp. (Ent) and above the [F. spiralis] zone (Fspi). It may replace the zone dominated by the wrack [Pelvetia canaliculata] (PelB). In areas where sand abrasion is less severe, the sand-binding red alga [Rhodothamniella floridula] occurs with other sand-tolerant seaweeds and the wrack [Fucus serratus] (Rho), along with the mussel [Mytilus edulis]. Temporal variation: Seasonal fluctuations in the abundance of the [Enteromorpha] spp. and the [P. purpurea] will occur, especially as a result of storm action.
Notation A1.452
Status Valid
Status Modified 2014-01-31
Accepted Date 2014-01-31
Not Accepted Date
Has broader
Has exact match