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SS.SMx.CMx.ClloMx.Nem Cerianthus lloydii with Nemertesia spp. and other hydroids in circalittoral muddy mixed sediment
Published date 2015-03In sheltered muddy sandy gravel with appreciable quantities of surficial cobbles, pebbles and shells a community similar to SS.SMx.CMx.ClloMx may develop with frequent Cerianthus lloydii and other bur...
LR.FLR.CvOv.RpurCla Rhodochorton purpureum and Cladophora rupestris on upper to mid-shore cave walls
Published date 2015-03Vertical and steeply-sloping upper walls at the entrances and inner reaches of upper to mid-shore caves that are partially sheltered from direct wave action characterised by a turf of the 'velvety' re...
SS.SCS.SCSVS Sublittoral coarse sediment in variable salinity (estuaries)
Published date 2015-03Clean gravels that occur in the upper reaches of marine inlets, especially estuaries, where water movement is sufficiently strong to remove the silt content of the sediment. The habitat typically lack...
LR.FLR.CvOv.BarCv Barren and/or boulder-scoured littoral cave walls and floors
Published date 2015-03Mid and upper shore mobile boulders/cobbles on cave floors and the lower reaches of cave walls which are subject to scour are generally devoid of macro-fauna and flora. However, where light is availab...
LR.LLR.FVS.PelVS Pelvetia canaliculata on sheltered variable salinity littoral fringe rock
Published date 2015-03Lower littoral fringe bedrock or stable boulders and mixed substrata on very sheltered to extremely sheltered variable salinity shores characterised by a dense cover of the wrack Pelvetia canaliculata...
SS.SMp.KSwSS.SlatCho Saccharina latissima and Chorda filum on sheltered upper infralittoral muddy sediment
Published date 2015-03Shallow kelp community found on sandy mud and gravelly sandy mud, in sheltered or extremely sheltered conditions, with very weak tidal currents. The community is characterised by a reasonable covering...
CR.FCR.FouFa Circalittoral fouling faunal communities
Published date 2015-03This biotope complex contains two biotopes which, although have different physical habitat characteristics, share the fact that they colonise new areas of artificial substrata relatively quickly. The ...
LS.LBR.LMus.Myt.Sa Mytilus edulis beds on littoral sand
Published date 2015-03This sub-biotope occurs on mid to lower shore sand and muddy sand. Mussels Mytilus edulis grow attached to shell debris and live cockles Cerastoderma edule, forming patches of mussels on consolidated ...
LS.LBR.LMus.Myt.Mx Mytilus edulis beds on littoral mixed substrata
Published date 2015-03Mid and lower shore mixed substrata (mainly cobbles and pebbles on fine sediments) in a wide range of exposure conditions and with aggregations of the mussel Mytilus edulis colonising mainly the sedim...
CR.LCR.BrAs.AmenCio.Ant Solitary ascidians, including Ascidia mentula and Ciona intestinalis, with Antedon spp. on wave-sheltered circalittoral rock
Published date 2015-03This variant occurs on circalittoral bedrock or boulder slopes in generally wave-sheltered conditions (often in sea lochs) with little tidal flow. It is frequently found on vertical or steeply-sloping...