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LR.HLR.FR.Mas Mastocarpus stellatus and Chondrus crispus on very exposed to moderately exposed lower eulittoral rock
Published date 2015-03Exposed to moderately exposed lower eulittoral vertical to almost horizontal bedrock characterised by a dense turf of Mastocarpus stellatus and Chondrus crispus (either together or separately). Beneat...
LR.LLR.F.Pel Pelvetia canaliculata on sheltered littoral fringe rock
Published date 2015-03Lower littoral fringe bedrock or stable boulders and mixed substrata in sheltered to extremely sheltered conditions characterised by a dense cover of the wrack Pelvetia canaliculata. The biotope may b...
SS.SMu.OMu.CapThy.Odub Capitella capitata, Thyasira spp. and Ophryotrocha dubia in organically-enriched offshore circalittoral sandy mud
Published date 2015-03In deep offshore sandy mud adjacent to oil or gas platforms, organic enrichment from drill cuttings leads to the development of communities dominated by the pollution tolerant opportunist Capitella ca...
SS.SMu.OMu.PjefThyAfil Paramphinome jeffreysii, Thyasira spp. and Amphiura filiformis in offshore circalittoral sandy mud
Published date 2015-03Deep, offshore cohesive sandy mud communities characterised by the polychaete Paramphinome jeffreysii, bivalves such as Parathyasira equalis and Thyasira gouldi (sometimes in elevated densities) and t...
LR.HLR.MusB.Cht.Cht Chthamalus spp. on exposed upper eulittoral rock
Published date 2015-03Very exposed to moderately exposed upper and mid eulittoral bedrock and boulders characterised by a dense community of barnacles, including Chthamalus montagui, Chthamalus stellatus and Semibalanus ba...
SS.SBR.PoR.Ser Serpula vermicularis reefs on very sheltered infralittoral muddy sand
Published date 2015-03Large clumps (mini 'reefs') of the calcareous tubes of Serpula vermicularis, typically attached to stones on muddy sediment in very sheltered conditions in sea lochs and other marine inlets. A rich as...
SS.SCS.CCS.SpiB Spirobranchus triqueter with barnacles and bryozoan crusts on unstable circalittoral cobbles and pebbles
Published date 2015-03This biotope is characterised by a few ubiquitous robust and/or fast growing ephemeral species which are able to colonise pebbles and unstable cobbles and slates which are regularly moved by wave and ...
SS.SMx.CMx.ClloModHo Sparse Modiolus modiolus, dense Cerianthus lloydii and burrowing holothurians on sheltered circalittoral stones and mixed sediment
Published date 2015-03Pebbles and cobbles on mud or muddy gravel in sea lochs with frequent Cerianthus lloydii and occasional Modiolus modiolus. Large burrowing holothurians may include Psolus phantapus, Panningia hyndmani...
IR.HIR.KFaR.LhypFa Laminaria hyperborea forest with a faunal cushion (sponges and polyclinids) and foliose red seaweeds on very exposed upper infralittoral rock
Published date 2015-03Very exposed and exposed, but wave-surged, upper infralittoral bedrock and massive boulders characterised by a dense forest of the kelp Laminaria hyperborea with a high diversity of seaweeds and inver...
IR.HIR.KSed.SlatSac Saccharina latissima and/or Saccorhiza polyschides on exposed infralittoral rock
Published date 2015-03A forest or park of the fast-growing, opportunistic kelps Saccharina latissima and/or Saccorhiza polyschides often occurs on seasonally unstable boulders or sand/pebble scoured infralittoral rock. The...