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SS.SMu.CFiMu Circalittoral fine mud
Published date 2015-03Sublittoral muds, occurring below moderate depths of 15-20 m, either on the open coast or in marine inlets such as sea lochs. The seapens Virgularia mirabilis and Pennatula phosphorea are characterist...
LS.LMu.MEst.HedMac Hediste diversicolor and Macoma balthica in littoral sandy mud
Published date 2015-03Mainly mid and lower shore sandy mud or mud in lower estuaries, sheltered bays and marine inlets, often subject to variable salinity. The main characterising species are the ragworm Hediste diversicol...
IR.MIR.KR.Ldig.Ldig Laminaria digitata on moderately exposed sublittoral fringe bedrock
Published date 2015-03Exposed to sheltered sublittoral fringe bedrock dominated by a dense canopy of Laminaria digitata, often with a wide range of filamentous and foliose red seaweeds beneath. The most frequently occurrin...
IR.MIR.KT.LdigT Laminaria digitata, ascidians and bryozoans on tide-swept sublittoral fringe rock
Published date 2015-03Sheltered bedrock, boulders and cobbles that are subject to moderate to strong tidal water movement characterised by dense Laminaria digitata, coralline crusts and sponges such as Halichondria panicea...
LR.MLR.BF.Fser.Pid Fucus serratus and piddocks on lower eulittoral soft rock
Published date 2015-03The lower eulittoral zone on soft rock shores (e.g. chalk) characterised by the wrack Fucus serratus. Much of the community associated with this biotope is the same as the biotope Fserr.FS, but certai...
SS.SMu.ISaMu.Cap Capitella capitata in enriched sublittoral muddy sediments
Published date 2015-03The polychaete Capitella capitata (agg.) a widely occurring opportunist species complex that is particularly associated with organically enriched and polluted sediments (Warren 1977; Pearson & Rosenbe...
LR.HLR.MusB Mussel and/or barnacle communities
Published date 2015-03Communities on very exposed to moderately exposed upper and mid eulittoral bedrock and boulders dominated by the mussel Mytilus edulis (MytB), barnacles Chthamalus spp. and/or Semibalanus balanoides a...
SS.SSa.CFiSa.EpusOborApri Echinocyamus pusillus, Ophelia borealis and Abra prismatica in circalittoral fine sand
Published date 2015-03Circalittoral and offshore medium to fine sand (from 40 m to 140 m) characterised by the pea urchin Echinocyamus pusillus, the polychaete Ophelia borealis and the bivalve Abra prismatica. Other specie...
LS.LSa.MuSa.HedMacEte Hediste diversicolor, Macoma balthica and Eteone longa in littoral muddy sand
Published date 2015-03Fine to very fine muddy sand on the mid shore at the lower extreme of estuaries, and in moderately exposed and sheltered bays and marine inlets, sometimes subject to variable salinity. The infauna is ...
SS.SMu.OMu.CapThy Capitella capitata and Thyasira spp. in organically-enriched offshore circalittoral mud and sandy mud
Published date 2015-03In circalittoral and deep offshore mud and sandy mud adjacent to oil or gas platforms, organic enrichment from drill cuttings leads to the development of communities dominated by the Capitella capitat...