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Taxus baccata woods of the British Isles
Published dateForests Description and ecological characteristics Yew Taxus baccata woodland occurs on shallow, dry soils usually on chalk or limestone slopes, but in a few areas stands on more mesotrophic soils are...
IR.LIR.IFaVS.MytRS Mytilus edulis beds on reduced salinity infralittoral rock
Published date 2015-03This biotope occur in shallow, often tide-swept, reduced salinity conditions. Dense beds of the mussel Mytilus edulis with the occasional barnacle Balanus crenatus. A wide variety of epifaunal colonis...
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.LIR.KVS Kelp in variable or reduced salinity
Published date 2015-03Very wave-sheltered bedrock, boulders and cobbles subject to only weak tidal streams in the sublittoral fringe and infralittoral zone, in areas of variable/reduced salinity. This biotope complex is ch...
SS.SBR.SMus.ModMvar Modiolus modiolus beds with Mimachlamys varia, sponges, hydroids and bryozoans on slightly tide-swept very sheltered circalittoral mixed substrata
Published date 2015-03Dense Modiolus modiolus beds, covered by hydroids and bryozoans, on soft gravelly, shelly mud with pebbles in areas of slight or moderate tidal currents. The variable scallop (Mimachlamys varia) is fr...
LR.FLR.Rkp.Cor.Par Coralline crusts and Paracentrotus lividus in shallow eulittoral rockpools
Published date 2015-03Shallow and relatively smal rockpools throughout the eulittoral zone on very exposed to exposed shores, characterised by a covering of encrusting coralline algae on which Corallina officinalis forms a...
SS.SMu.SMuVS.PolCvol Polydora ciliata and Corophium volutator in variable salinity infralittoral firm mud or clay
Published date 2015-03Variable salinity clay and firm mud characterised by a turf of the polychaete Polydora ciliata along with the amphipod Corophium volutator. Other important taxa include the polychaetes Pygospio elegan...
LR.LLR.F.Asc Ascophyllum nodosum on very sheltered mid eulittoral rock
Published date 2015-03Sheltered to extremely sheltered mid eulittoral rock with the wrack Ascophyllum nodosum. The red seaweed Vertebrata lanosa is often found growing as an epiphyte on the A. nodosum fronds while disturbe...
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...
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...