Ulothrix flacca and Urospora spp. on freshwater-influenced vertical littoral fringe soft rock
|Within Vocab||Marine Habitat Classification for Britain and Ireland Version 97.06|
|Definition||An assemblage of algae occurring at High Water Spring Tide level on steep and vertical soft rock is visually recognised as closely adherent, often shiny, mats of filamentous growth. It comprises Ulothrix flacca, Urospora penicilliformis, Urospora wormskioldii and Bangia atropurpurea. In late winter B. atropurpurea may be predominant and the community appears as shiny blackish mats of filamentous growth. The community is more consistently present in areas of freshwater seepage. Associated species include Blidingia minima and Enteromorpha prolifera. On chalk coasts this community overlaps with and merges into the Enteromorpha community (Eph). Although this biotope is believed to occur on soft rock other than chalk, this description has been derived from chalk coast sites.|
|Has Current Version||1|
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