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IR.LIR.K.Slat.Ldig Saccharina latissima and Laminaria digitata on sheltered sublittoral fringe rock
Published date 2015-03Sheltered bedrock and boulders in the sublittoral fringe characterised by a mixed canopy of the kelp Laminaria digitata (usually in its broad-fronded cape-form) and Saccharina latissima - both species...
LR.HLR.FR.RPid Ceramium sp. and piddocks on eulittoral fossilised peat
Published date 2015-03Outcrops of fossilised peat in the eulittoral are soft enough to allow a variety of piddocks such as Barnea candida and Petricolaria pholadiformis to bore into them. The surface of the peat can be cha...
LR.FLR.Rkp.H Hydroids, ephemeral seaweeds and Littorina littorea in shallow eulittoral mixed substrata pools
Published date 2015-03Shallow pools on mixed cobbles, pebbles, gravel and sand characterised by abundant hydroids. Species present may include Obelia geniculata, O. dichotoma, O. longissima, Sertularia cupressina, Tublaria...
LR.LLR Low energy littoral rock
Published date 2015-03Sheltered to extremely sheltered rocky shores with very weak to weak tidal streams are typically characterised by a dense cover of fucoid seaweeds which form distinct zones (the wrack Pelvetia canalic...
LR.MLR.MusF.MytFves Mytilus edulis and Fucus vesiculosus on moderately exposed mid eulittoral rock
Published date 2015-03Mid eulittoral exposed to moderately exposed bedrock, often with nearby sediment, covered by a dense band or large patches of the mussel Mytilus edulis. The community often supports scattered Fucus ve...
LS.LSa.St.MytFab Mytilus edulis and Fabricia stellaris in littoral mixed sediment
Published date 2015-03Pebbles, gravel, sand and shell debris with mud in sheltered Firths with a strandline of fucoid algae. The fauna is characterised by juvenile mussels Mytilus edulis, often in very high numbers. The ne...
SS.SBR.SMus.ModT Modiolus modiolus beds with hydroids and red seaweeds on tide-swept circalittoral mixed substrata
Published date 2015-03Modiolus beds on mixed substrata (cobbles, pebbles and coarse muddy sediments) in moderately strong currents or wave exposed areas, typically on the open coast but also in tide-swept channels of marin...
SS.SBR.SMus.ModHAs Modiolus modiolus beds with fine hydroids and large solitary ascidians on very sheltered circalittoral mixed substrata
Published date 2015-03Beds or scattered clumps of Modiolus modiolus in generally sheltered conditions with only slight tidal movement. Typically occurs in sea lochs and the Shetland voes. Brittlestars Ophiothrix fragilis a...
LR.HLR.MusB.Cht Chthamalus spp. on exposed 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.SalvMx Sabellaria alveolata on variable salinity sublittoral mixed sediment
Published date 2015-03Tide-swept sandy mixed sediments with cobbles and pebbles, in variable salinity or fully marine conditions, may be characterised by surface accumulations of the reef building polychaete Sabellaria alv...