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LR.LLR.FVS.Fcer Fucus ceranoides on reduced salinity eulittoral rock
Published date 2015-03Very sheltered to extremely sheltered bedrock and stable boulders in the eulittoral zone that are subject to reduced salinity and characterised by the wrack Fucus ceranoides. Species richness is typic...
LR.HLR.FT.FserT Fucus serratus, sponges and ascidians on tide-swept lower eulittoral rock
Published date 2015-03Sheltered to extremely sheltered lower eulittoral bedrock, boulders and cobbles that are subject to increased tidal water movement and characterised by the wrack Fucus serratus and a rich assemblage o...
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...
LS.LSa.MuSa.CerPo Cerastoderma edule and polychaetes in littoral muddy sand
Published date 2015-03Extensive clean fine sand or muddy sand shores with abundant cockles Cerastoderma edule. The community consists of the polychaetes Eteone longa, Scoloplos armiger, Pygospio elegans, Spio filicornis an...
LR.HLR.FT.AscT Ascophyllum nodosum, sponges and ascidians on tide-swept mid eulittoral rock
Published date 2015-03Very sheltered to extremely sheltered areas of mid eulittoral rock that are subject to strong to moderate tidal streams, such as the narrows in sea lochs, and characterised by the wrack Ascophyllum no...
IR Infralittoral rock (and other hard substrata)
Published date 2015-03Infralittoral rock includes habitats of bedrock, boulders and cobbles which occur in the shallow subtidal zone and typically support seaweed communities. The upper limit is marked by the top of the ke...
CR.MCR.SfR.Hia Hiatella-bored vertical sublittoral limestone rock
Published date 2015-03Moderately exposed vertical and overhanging soft rock (typically chalk), subject to moderately strong to weak tidal streams, bored by the rock-boring mollusc Hiatella arctica. As with other biotopes i...
LS.LBR.Sab.Salv Sabellaria alveolata reefs on sand-abraded eulittoral rock
Published date 2015-03Exposed to moderately exposed bedrock and boulders in the eastern basin of the Irish Sea (and as far south as Cornwall) characterised by reefs of the polychaete Sabellaria alveolata. The sand based tu...
LR.MLR.BF.Fser Fucus serratus on moderately exposed lower eulittoral rock
Published date 2015-03Lower eulittoral bedrock and stable boulders on moderately exposed to sheltered shores with a canopy of the wrack Fucus serratus and an associated fauna consisting of the limpet Patella vulgata, the b...
SS.SCS.ICS.SLan Dense Lanice conchilega and other polychaetes in tide-swept infralittoral sand and mixed gravelly sand
Published date 2015-03Dense beds of Lanice conchilega occur in coarse to medium fine gravelly sand in the shallow sublittoral, where there are strong tidal streams or wave action. Several other species of polychaete also o...