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SS.SMu.SMuVS.CapTubi Capitella capitata and Tubificoides spp. in reduced salinity infralittoral muddy sediment
Published date 2015-03Reduced or variable salinity muddy sediment characterised by the Capitella capitata species complex with a relatively low species richness. Large numbers of the oligochaetes Tubificoides spp. may be f...
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...
IR.HIR.KSed.Sac Saccorhiza polyschides and other opportunistic kelps on disturbed sublittoral fringe rock
Published date 2015-03Exposed low-lying reefs in the sublittoral fringe or upper infralittoral (generally above 5m depth), mainly in the southwest and west, dominated by the kelp Saccorhiza polyschides. This opportunistic ...
LR.FLR.Lic.UloUro Ulothrix flacca and Urospora spp. on freshwater-influenced vertical littoral fringe soft rock
Published date 2015-03An 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 i...
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...
SS.SBR.PoR.Ser Serpula vermicularis reefs on very sheltered circalittoral 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...
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...
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...
IR.HIR.KFaR.Ala.Myt Alaria esculenta, Mytilus edulis and coralline crusts on very exposed sublittoral fringe bedrock
Published date 2015-03Very exposed sublittoral fringe bedrock characterised by the kelp Alaria esculenta and dense patches of small individuals of the mussel Mytilus edulis, both of which grow over a dense cover of encrust...
LR.HLR High energy littoral rock
Published date 2015-03Extremely exposed to moderately exposed or tide-swept bedrock and boulder shores. Extremely exposed shores dominated by mussels and barnacles, occasionally with robust fucoids or turfs of red seaweed....