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SS.SMx.CMx.FluHyd Flustra foliacea and Hydrallmania falcata on tide-swept circalittoral mixed sediment
Published date 2015-03This biotope represents part of a transition between sand-scoured circalittoral rock where the epifauna is conspicuous enough to be considered as a biotope and a sediment biotope where an infaunal sam...
IR.HIR.KSed.XKScrR Mixed kelps with scour-tolerant and opportunistic foliose red seaweeds on scoured or sand-covered infralittoral rock
Published date 2015-03Bedrock and boulders, often in tide-swept areas, that are subject to scouring or periodic burial by sand, characterised by a canopy of mixed kelps such as Saccharina latissima, Laminaria hyperborea an...
LS.LCS.Sh.Ech Echinogammarus incertae sedis planicrurus in mid shore well-sorted gravel or coarse sand
Published date 2015-03Shores of well-sorted gravel with a predominant particle size of 4.0 mm but ranging between 3 and 6 mm support dense populations of the amphipod Echinogammarus incertae sedis planicrurus. Material fin...
IR.LIR.IFaVS Faunal communities on variable or reduced salinity infralittoral rock
Published date 2015-03Shallow subtidal rocky habitats which support faunal-dominated communities, with seaweed communities only poorly developed or absent. In some sealochs dense mussel Mytilus edulis beds (MytRS) develop ...
LS.LSa.MoSa.Ol.VS Oligochaetes in variable salinity littoral mobile sand
Published date 2015-03A species-poor community of oligochaetes occurring in estuarine conditions where sands and gravel are associated with the lower shore river channel in estuaries. The sediment is relatively coarse and ...
CR.MCR.EcCr.CarSp Caryophyllia smithii, sponges and crustose communities on wave-exposed circalittoral rock
Published date 2015-03This biotope typically occurs on the upper and vertical faces of wave-exposed, moderately strong to weakly tide-swept, circalittoral bedrock or boulders, with a water depth range of 20-30m. This often...
IR.MIR.KR.Lhyp.GzPk Grazed Laminaria hyperborea park with coralline crusts on lower infralittoral rock
Published date 2015-03Exposed to moderately exposed Laminaria hyperborea kelp park in some areas is intensively grazed by the urchin Echinus esculentus. The rock surface lacks a significant turf of foliose seaweeds and gen...
IR.LIR.IFaVS.HarCon Hartlaubella gelatinosa and Conopeum reticulum on low salinity infralittoral mixed substrata
Published date 2015-03Upper estuarine mixed hard substrata colonised by very sparse communities of animals with low species richness and with a few seaweeds in very shallow water. In the Tamar estuary the hydroid Hartlaube...
LR.HLR.FR.Pal Palmaria palmata on very exposed to moderately exposed lower eulittoral rock
Published date 2015-03Very exposed to moderately exposed lower eulittoral rock which supports a pure stand of dulse Palmaria palmata as a dense band or in large patches above the main kelp zone. P. palmata favours shaded o...
SS.SMp.KSwSS.Pcri Loose-lying mats of Phyllophora crispa on infralittoral muddy sediment
Published date 2015-03Infralittoral muddy sand and sandy mud, sometimes with some shells or pebbles, and a dense, loose-lying cover of Phyllophora crispa. This biotope occurs in very sheltered conditions such as those foun...