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SS.SMp.Mrl.Lcor Lithothamnion corallioides maerl beds on infralittoral muddy gravel
Published date 2015-03Live maerl beds in sheltered, silty conditions which are dominated by Lithothamnion corallioides with a variety of foliose and filamentous seaweeds. Live maerl is at least common but there may be noti...
SS.SSa.IMuSa.EcorEns Echinocardium cordatum and Ensis spp. in lower shore and shallow sublittoral slightly muddy fine sand
Published date 2015-03Sheltered lower shore and shallow sublittoral sediments of sand or muddy fine sand in fully marine conditions, support populations of the urchin Echinocardium cordatum and the razor shell Ensis siliqu...
IR.HIR.KSed.SlatChoR Saccharina latissima, Chorda filum and dense red seaweeds on shallow unstable infralittoral boulders or cobbles
Published date 2015-03Seasonally disturbed unstable boulders and cobbles in very shallow water dominated by the fast-growing brown seaweed Chorda filum together with the kelp Saccharina latissima. The brown seaweed Desmare...
IR.LIR.K.LhypSlat.Ft Mixed Laminaria hyperborea and Saccharina latissima forest on sheltered upper infralittoral rock
Published date 2015-03Sheltered, often silted, upper infralittoral bedrock and boulder slopes with mixed kelps Laminaria hyperborea and Saccharina latissima and red seaweeds beneath. The kelp at these sheltered sites often...
SS.SMp.Mrl.Lgla Lithothamnion glaciale maerl beds in tide-swept variable salinity infralittoral gravel
Published date 2015-03Upper infralittoral tide-swept channels of coarse sediment in full or variable salinity conditions support distinctive beds of Lithothamnion glaciale maerl 'rhodoliths'. Phymatolithon calcareum may al...
IR.FIR.SG.CrSp Crustose sponges on extremely wave-surged infralittoral cave or gully walls
Published date 2015-03Walls, or massive boulders, in caves or gullies that are subject to severe wave-surge and characterised by extensive thin crusts of the sponge Halichondria panicea with smaller patches of other sponge...
IR.LIR.K.LhypSlat Mixed Laminaria hyperborea and Saccharina latissima on sheltered infralittoral rock
Published date 2015-03Mixed Laminaria hyperborea and Saccharina latissima on bedrock and boulders in sheltered infralittoral habitats. Typically subject to weak tidal streams and rather silty conditions. Beneath the kelp i...
IR.LIR.K.SLat.Pk Saccharina latissima park on very sheltered lower infralittoral rock
Published date 2015-03Silty bedrock or boulders with a Saccharina latissima park (often the cape-form). Beneath the canopy, the rock is covered by encrusting coralline algae, and the urchin Echinus esculentus is often pres...
SS.SMp.KSwSS Kelp and seaweed communities on sublittoral sediment
Published date 2015-03Shallow sublittoral sediments which support seaweed communities, typically including the kelp Saccharina latissima, the bootlace weed Chorda filum and various red and brown seaweeds, particularly fila...
CR.FCR.Cv.SpCup Sponges, cup corals and anthozoans on shaded or overhanging circalittoral rock
Published date 2015-03This biotope occurs on shaded and overhanging rock, such as on cave walls and ceilings although there are very few records of caves in conditions not subject to wave surge (i.e. deeper circalittoral h...