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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...
IR.LIR.K.Slat Saccharina latissima on very sheltered infralittoral rock
Published date 2015-03Very sheltered infralittoral rock dominated by the kelp Saccharina latissima. Typically very silty and often with few associated seaweeds due to siltation, grazing or shading from the dense kelp canop...
IR.LIR.Lag.FChoG Mixed fucoids, Chorda filum and green seaweeds on reduced salinity infralittoral rock
Published date 2015-03Permanently submerged mixed fucoids on rock in lagoons. The main species are the wracks Fucus serratus and Fucus vesiculosus, but the brown seaweeds Chorda filum, Ascophyllum nodosum and Ectocarpaceae...
LR.HLR.FR Robust fucoid and/or red seaweed communities
Published date 2015-03This biotope complex encompasses those seaweeds that are able to tolerate the extreme conditions of very exposed to moderately exposed rocky shores. The physical stresses caused by wave action often r...