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Concept: [Ulothrix flacca] and [Urospora] spp. on freshwater-influenced vertical littoral fringe soft rock in the eunishabitats vocabulary

Concept URI http://eunis.eea.europa.eu/eunishabitats/B3.115
Preferred label [Ulothrix flacca] and [Urospora] spp. on freshwater-influenced vertical littoral fringe soft rock
Definition An assemblage of the small un-branched filamentous green seaweeds [Ulothrix flacca], [Urospora penicilliformis] and [Urospora wormskioldii] at High Water Spring Tide level on steep and vertical rock often influenced by freshwater. The community is also present in areas with freshwater seepage. It is visually recognised as a closely adherent, often shiny, green mat of filamentous growth. Associated species include the green seaweeds [Blidingia minima] and [Enteromorpha prolifera], the barnacle [Semibalanus balanoides] and the limpet [Patella vulgata], but these species are not common. Although this biotope does occur on rock other than chalk, this description has been derived from chalk coast sites. More information is needed to improve this description. Situation: On chalk coasts this community can include [Enteromorpha] spp. and the transition from UloUro to Ent is often indistinct and a mixed zone of UloUro and Ent can occur. Temporal variation: This biotope is more easily identifiable from autumn to spring as both [Urospora] spp. and [Bangia atropurpurea] may dry out and disappear during the summer. In late winter the red seaweed [B. atropurpurea] may be predominant and the community then appears as shiny blackish mats of filamentous growth.
Notation B3.115
Status Valid
Status Modified 2014-01-31
Accepted Date 2014-01-31
Not Accepted Date
Has broader
Has exact match