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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...
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...
IR.MIR.KR.LhypTX.Ft Laminaria hyperborea forest and foliose red seaweeds on tide-swept upper infralittoral mixed substrata
Published date 2015-03Moderately wave-exposed to wave sheltered, tide-swept mixed substrata, with dense Laminaria hyperborea forest and sparser Saccharina latissima, characterised by an under-storey and stipe flora of foli...
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...
LR.FLR.Rkp.Cor.Cor Coralline crusts and Corallina officinalis in shallow eulittoral rockpools
Published date 2015-03Shallow and smaller rockpools throughout the eulittoral zone in a wide range of wave exposures characterised by a covering of encrusting coralline algae on which Corallina officinalis often forms a de...
LR.FLR.Lic Lichens or small green algae on supralittoral and littoral fringe rock
Published date 2015-03Lichen communities typically form a distinct zone or band in a 'splash' zone on most rocky shores. This splash zone occurs above the main intertidal zone (i.e. that subject to regular covering by the ...