Sensitivity of selected habitats
Search the MarESA database for the sensitivities of specified habitats (biotopes). Use this tool to compare the sensitivity of one or more habitats (biotopes).
Please select one or more habitats from the list provided. Alternatively type keywords (e.g. species name, habitat name). Click the box to add further habitats. Then chose the level(s) of 'sensitivity' of interest and run the report. Select or deselect habitats (biotopes) and sensitivities as required and re-run the report. Note the results of the report can be exported in different formats on request . Mobile users should note this tool works best in landscape.
Form
Select Habitat(s)
Use the field below to search for the item(s) you require. Select the item from the filtered dropdown list and click the Add button to add the item to your list of selections below. You can add more than one item to the list and you can remove them.
Habitats
A1.111 / LR.HLR.MusB.MytB - Mytilus edulis and barnacles on very exposed eulittoral rock
A1.112 / LR.HLR.MusB.Cht - Chthamalus spp. on exposed eulittoral rock
A1.1121 / LR.HLR.MusB.Cht.Cht - Chthamalus spp. on exposed upper eulittoral rock
A1.1122 / LR.HLR.MusB.Cht.Lpyg - Chthamalus spp. and Lichina pygmaea on steep exposed upper eulittoral rock
A1.113 / LR.HLR.MusB.Sem - Semibalanus balanoides on exposed to moderately exposed or vertical sheltered eulittoral rock
A1.1131 / LR.HLR.MusB.Sem.Sem - Semibalanus balanoides, Patella vulgata and Littorina spp. on exposed to moderately exposed or vertical sheltered eulittoral rock
A1.1132 / LR.HLR.MusB.Sem.FvesR - Semibalanus balanoides, Fucus vesiculosus and red seaweeds on exposed to moderately exposed eulittoral rock
A1.1133 / LR.HLR.MusB.Sem.LitX - Semibalanus balanoides and Littorina spp. on exposed to moderately exposed eulittoral boulders and cobbles
A1.121 / LR.HLR.FR.Fdis - Fucus distichus and Fucus spiralis f. nana on extremely exposed upper shore rock
A1.122 / LR.HLR.FR.Coff - Corallina officinalis on exposed to moderately exposed lower eulittoral rock
A1.1221 / LR.HLR.FR.Coff.Coff - Corallina officinalis and Mastocarpus stellatus on exposed to moderately exposed lower eulittoral rock
A1.1222 / LR.HLR.FR.Coff.Puly - Corallina officinalis, Himanthalia elongata and Patella ulyssiponensis on very exposed lower eulittoral rock
A1.123 / LR.HLR.FR.Him - Himanthalia elongata and red seaweeds on exposed to moderately exposed lower eulittoral rock
A1.124 / LR.HLR.FR.Pal - Palmaria palmata on very exposed to moderately exposed lower eulittoral rock
A1.125 / LR.HLR.FR.Mas - Mastocarpus stellatus and Chondrus crispus on very exposed to moderately exposed lower eulittoral rock
A1.126 / LR.HLR.FR.Osm - Osmundea pinnatifida on moderately exposed mid eulittoral rock
A1.127 / LR.HLR.FR.RPid - Ceramium sp. and piddocks on eulittoral fossilised peat
A1.151 / LR.HLR.FT.AscT - Ascophyllum nodosum, sponges and ascidians on tide-swept mid eulittoral rock
A1.152 / LR.HLR.FT.FserT - Fucus serratus, sponges and ascidians on tide-swept lower eulittoral rock
A1.153 / LR.HLR.FT.FserTX - Fucus serratus with sponges, ascidians and red seaweeds on tide-swept lower eulittoral mixed substrata
A1.21 / LR.MLR.BF - Barnacles and fucoids on moderately exposed shores
A1.211 / LR.MLR.BF.PelB - Pelvetia canaliculata and barnacles on moderately exposed littoral fringe rock
A1.212 / LR.MLR.BF.FspiB - Fucus spiralis on exposed to moderately exposed upper eulittoral rock
A1.213 / LR.MLR.BF.FvesB - Fucus vesiculosus and barnacle mosaics on moderately exposed mid eulittoral rock
A1.214 / LR.MLR.BF.Fser - Fucus serratus on moderately exposed lower eulittoral rock
A1.2141 / LR.MLR.BF.Fser.R - Fucus serratus and red seaweeds on moderately exposed lower eulittoral rock
A1.2142 / LR.MLR.BF.Fser.Bo - Fucus serratus and under-boulder fauna on exposed to moderately exposed lower eulittoral boulders
A1.2143 / LR.MLR.BF.Fser.Pid - Fucus serratus and piddocks on lower eulittoral soft rock
A1.215 / LR.MLR.BF.Rho - Rhodothamniella floridula on sand-scoured lower eulittoral rock
A1.221 / LR.MLR.MusF.MytFves - Mytilus edulis and Fucus vesiculosus on moderately exposed mid eulittoral rock
A1.222 / LR.MLR.MusF.MytFR - Mytilus edulis, Fucus serratus and red seaweeds on moderately exposed lower eulittoral rock
A1.223 / LR.MLR.MusF.MytPid - Mytilus edulis and piddocks on eulittoral firm clay
A1.311 / LR.LLR.F.Pel - Pelvetia canaliculata on sheltered littoral fringe rock
A1.312 / LR.LLR.F.Fspi - Fucus spiralis on sheltered upper eulittoral rock
A1.3121 / LR.LLR.F.Fspi.FS - Fucus spiralis on full salinity sheltered upper eulittoral rock
A1.3122 / LR.LLR.F.Fspi.X - Fucus spiralis on full salinity upper eulittoral mixed substrata
A1.313 / LR.LLR.F.Fves - Fucus vesiculosus on moderately exposed to sheltered mid eulittoral rock
A1.3131 / LR.LLR.F.Fves.FS - Fucus vesiculosus on full salinity moderately exposed to sheltered mid eulittoral rock
A1.3132 / LR.LLR.F.Fves.X - Fucus vesiculosus on mid eulittoral mixed substrata
A1.314 / LR.LLR.F.Asc - Ascophyllum nodosum on very sheltered mid eulittoral rock
A1.3141 / LR.LLR.F.Asc.FS - Ascophyllum nodosum on full salinity mid eulittoral rock
A1.3142 / LR.LLR.F.Asc.X - Ascophyllum nodosum on full salinity mid eulittoral mixed substrata
A1.315 / LR.LLR.F.Fserr - Fucus serratus on sheltered lower eulittoral rock
A1.3151 / LR.LLR.F.Fserr.FS - Fucus serratus on full salinity sheltered lower eulittoral rock
A1.3152 / LR.LLR.F.Fserr.X - Fucus serratus on full salinity lower eulittoral mixed substrata
A1.321 / LR.LLR.FVS.PelVS - Pelvetia canaliculata on sheltered variable salinity littoral fringe rock
A1.322 / LR.LLR.FVS.FspiVS - Fucus spiralis on sheltered variable salinity upper eulittoral rock
A1.323 / LR.LLR.FVS.FvesVS - Fucus vesiculosus on variable salinity mid eulittoral boulders and stable mixed substrata
A1.324 / LR.LLR.FVS.AscVS - Ascophyllum nodosum and Fucus vesiculosus on variable salinity mid eulittoral rock
A1.325 / LR.LLR.FVS.Ascmac - Ascophyllum nodosum ecad mackaii beds on extremely sheltered mid eulittoral mixed substrata
A1.326 / LR.LLR.FVS.FserVS - Fucus serratus and large Mytilus edulis on variable salinity lower eulittoral rock
A1.327 / LR.LLR.FVS.Fcer - Fucus ceranoides on reduced salinity eulittoral rock
A1.411 / LR.FLR.Rkp.Cor - Coralline crust-dominated shallow eulittoral rockpools
A1.4111 / LR.FLR.Rkp.Cor.Cor - Coralline crusts and Corallina officinalis in shallow eulittoral rockpools
A1.4112 / LR.FLR.Rkp.Cor.Par - Coralline crusts and Paracentrotus lividus in shallow eulittoral rockpools
A1.4113 / LR.FLR.Rkp.Cor.Bif - Bifurcaria bifurcata in shallow eulittoral rockpools
A1.4114 / LR.FLR.Rkp.Cor.Cys - Cystoseira spp. in eulittoral rockpools
A1.412 / LR.FLR.Rkp.FK - Fucoids and kelp in deep eulittoral rockpools
A1.4121 / LR.FLR.Rkp.FK.Sar - Sargassum muticum in eulittoral rockpools
A1.413 / LR.FLR.Rkp.SwSed - Seaweeds in sediment-floored eulittoral rockpools
A1.414 / LR.FLR.Rkp.H - Hydroids, ephemeral seaweeds and Littorina littorea in shallow eulittoral mixed substrata pools
A1.421 / LR.FLR.Rkp.G - Green seaweeds (Ulva spp. and Cladophora spp.) in shallow upper shore rockpools
A1.441 / LR.FLR.CvOv.ChrHap - Chrysophyceae and Haptophyceae on vertical upper littoral fringe soft rock
A1.442 / LR.FLR.CvOv.GCv - Green algal films on upper and mid-shore cave walls and ceilings
A1.443 / LR.FLR.CvOv.RpurPlac - Rhodochorton purpureum and Pleurocladia lacustris crusts on upper and mid-shore cave walls and ceilings
A1.444 / LR.FLR.CvOv.RpurCla - Rhodochorton purpureum and Cladophora rupestris on upper to mid-shore cave walls
A1.445 / LR.FLR.CvOv.VmucHil - Verrucaria mucosa and/or Hildenbrandia rubra on upper to mid shore cave walls
A1.446 / LR.FLR.CvOv.SpR - Sponges and shade-tolerant red seaweeds on overhanging lower eulittoral bedrock and in cave entrances
A1.4461 / LR.FLR.CvOv.SpR.Den - Sponges, shade-tolerant red seaweeds and Dendrodoa grossularia on wave-surged overhanging lower eulittoral bedrock and caves
A1.447 / LR.FLR.CvOv.SpByAs - Sponges, bryozoans and ascidians on deeply overhanging lower shore bedrock or caves
A1.448 / LR.FLR.CvOv.FaCr - Faunal crusts on wave-surged littoral cave walls
A1.449 / LR.FLR.CvOv.ScrFa - Sparse fauna (barnacles and spirorbids) on sand/pebble-scoured rock in littoral caves
A1.44A / LR.FLR.CvOv.BarCv - Barren and/or boulder-scoured littoral cave walls and floors
A1.451 / LR.FLR.Eph.Ulv - Ulva spp. on freshwater-influenced and/or unstable upper eulittoral rock
A1.452 / LR.FLR.Eph.UlvPor - Porphyra purpurea and Ulva spp. on sand-scoured mid or lower eulittoral rock
A2.111 / LS.LCS.Sh.BarSh - Barren littoral shingle
A2.112 / LS.LCS.Sh.Ech - Echinogammarus incertae sedis planicrurus in mid shore well-sorted gravel or coarse sand
A2.211 / LS.LSa.St.Tal - Talitrids on the upper shore and strand-line
A2.22 / LS.LSa.MoSa - Barren or amphipod-dominated mobile sand shores
A2.221 / LS.LSa.MoSa.BarSa - Barren littoral coarse sand
A2.222 / LS.LSa.MoSa.Ol - Oligochaetes in littoral mobile sand
A2.2221 / LS.LSa.MoSa.Ol.FS - Oligochaetes in full salinity littoral mobile sand
A2.2222 / LS.LSa.MoSa.Ol.VS - Oligochaetes in variable salinity littoral mobile sand
A2.223 / LS.LSa.MoSa.AmSco - Amphipods and Scolelepis spp. in littoral medium-fine sand
A2.2231 / LS.LSa.MoSa.AmSco.Sco - Scolelepis spp. in littoral mobile sand
A2.2232 / LS.LSa.MoSa.AmSco.Eur - Eurydice pulchra in littoral mobile sand
A2.2233 / LS.LSa.MoSa.AmSco.Pon - Pontocrates arenarius in littoral mobile sand
A2.23 / LS.LSa.FiSa - Polychaete/amphipod-dominated fine sand shores
A2.231 / LS.LSa.FiSa.Po - Polychaetes in littoral fine sand
A2.2311 / LS.LSa.FiSa.Po.Pful - Polychaetes, including Paraonis fulgens, in littoral fine sand
A2.2312 / LS.LSa.FiSa.Po.Mten - Polychaetes and Macomangulus tenuis in littoral fine sand
A2.2313 / LS.LSa.FiSa.Po.Ncir - Nephtys cirrosa-dominated littoral fine sand
A2.241 / LS.LSa.MuSa.MacAre - Macoma balthica and Arenicola marina in littoral muddy sand
A2.242 / LS.LSa.MuSa.CerPo - Cerastoderma edule and polychaetes in littoral muddy sand
A2.243 / LS.LSa.MuSa.HedMacEte - Hediste diversicolor, Macoma balthica and Eteone longa in littoral muddy sand
A2.244 / LS.LSa.MuSa.BatCare - Bathyporeia pilosa and Corophium arenarium in littoral muddy sand
A2.245 / LS.LSa.MuSa.Lan - Lanice conchilega in littoral sand
A2.311 / LS.LMu.MEst.NhomMacStr - Nephtys hombergii, Macoma balthica and Streblospio shrubsolii in littoral sandy mud
A2.312 / LS.LMu.MEst.HedMac - Hediste diversicolor and Macoma balthica in littoral sandy mud
A2.313 / LS.LMu.MEst.HedMacScr - Hediste diversicolor, Macoma balthica and Scrobicularia plana in littoral sandy mud
A2.321 / LS.LMu.UEst.NhomStr - Nephtys hombergii and Streblospio shrubsolii in littoral mud
A2.322 / LS.LMu.UEst.Hed - Hediste diversicolor in littoral mud
A2.3221 / LS.LMu.UEst.Hed.Str - Hediste diversicolor and Streblospio shrubsolii in littoral sandy mud
A2.3222 / LS.LMu.UEst.Hed.Cvol - Hediste diversicolor and Corophium volutator in littoral mud
A2.3223 / LS.LMu.UEst.Hed.Ol - Hediste diversicolor and oligochaetes in littoral mud
A2.323 / LS.LMu.UEst.Tben - Tubificoides benedii and other oligochaetes in littoral mud
A2.41 / LS.LMx.GvMu - Hediste-dominated gravelly sandy mud shores
A2.411 / LS.LMx.GvMu.HedMx - Hediste diversicolor in littoral gravelly muddy sand and gravelly sandy mud
A2.4111 / LS.LMx.GvMu.HedMx.Mac - Hediste diversicolor and Macoma balthica in littoral gravelly mud
A2.4112 / LS.LMx.GvMu.HedMx.Scr - Hediste diversicolor and Scrobicularia plana in littoral gravelly mud
A2.4113 / LS.LMx.GvMu.HedMx.Str - Hediste diversicolor and Streblospio shrubsolii in littoral gravelly sandy mud
A2.4114 / LS.LMx.GvMu.HedMx.Cir - Hediste diversicolor, cirratulids and Tubificoides spp. in littoral gravelly sandy mud
A2.4115 / LS.LMx.GvMu.HedMx.Cvol - Hediste diversicolor and Corophium volutator in littoral gravelly sandy mud
A2.421 / LS.LMx.Mx.CirCer - Cirratulids and Cerastoderma edule in littoral mixed sediment
A2.431 / LR.FLR.Eph.BLitX - Barnacles and Littorina spp. on unstable eulittoral mixed substrata
A2.6111 / LS.LMp.LSgr.Znol - Zostera noltei beds in littoral muddy sand
A2.711 / LS.LBR.Sab.Salv - Sabellaria alveolata reefs on sand-abraded eulittoral rock
A2.72 / LS.LBR.LMus - Littoral mussel beds on sediment
A2.721 / LS.LBR.LMus.Myt - Mytilus edulis beds on littoral sediments
A2.7211 / LS.LBR.LMus.Myt.Mx - Mytilus edulis beds on littoral mixed substrata
A2.7212 / LS.LBR.LMus.Myt.Sa - Mytilus edulis beds on littoral sand
A2.7213 / LS.LBR.LMus.Myt.Mu - Mytilus edulis beds on littoral mud
A2.821 / LR.FLR.Eph.EphX - Ephemeral green and red seaweeds on variable salinity and/or disturbed eulittoral mixed substrata
A3.111 / IR.HIR.KFaR.Ala - Alaria esculenta on exposed sublittoral fringe bedrock
A3.1111 / IR.HIR.KFaR.Ala.Myt - Alaria esculenta, Mytilus edulis and coralline crusts on very exposed sublittoral fringe bedrock
A3.1112 / IR.HIR.KFaR.Ala.Ldig - Alaria esculenta and Laminaria digitata on exposed sublittoral fringe bedrock
A3.112 / IR.HIR.KFaR.AlaAnCrSp - Alaria esculenta forest with dense anemones and crustose sponges on extremely exposed infralittoral bedrock
A3.113 / IR.HIR.KFaR.LhypFa - Laminaria hyperborea forest with a faunal cushion (sponges and polyclinids) and foliose red seaweeds on very exposed upper infralittoral rock
A3.115 / IR.HIR.KFaR.LhypR - Laminaria hyperborea with dense foliose red seaweeds on exposed infralittoral rock
A3.1151 / IR.HIR.KFaR.LhypR.Ft - Laminaria hyperborea forest with dense foliose red seaweeds on exposed upper infralittoral rock
A3.1152 / IR.HIR.KFaR.LhypR.Pk - Laminaria hyperborea park with dense foliose red seaweeds on exposed lower infralittoral rock
A3.1153 / IR.HIR.KFaR.LhypR.Loch - Mixed Laminaria hyperborea and Laminaria ochroleuca forest on exposed infralittoral rock
A3.116 / IR.HIR.KFaR.FoR - Foliose red seaweeds on exposed lower infralittoral rock
A3.1161 / IR.HIR.KFaR.FoR.Dic - Foliose red seaweeds with dense Dictyota dichotoma and/or Dictyopteris polypodioides on exposed lower infralittoral rock
A3.117 / IR.HIR.KFaR.LhypRVt - Laminaria hyperborea and red seaweeds on exposed vertical rock
A3.121 / IR.HIR.KSed.Sac - Saccorhiza polyschides and other opportunistic kelps on disturbed sublittoral fringe rock
A3.122 / IR.HIR.KSed.SlatSac - Saccharina latissima and/or Saccorhiza polyschides on exposed infralittoral rock
A3.123 / IR.HIR.KSed.SlatChoR - Saccharina latissima, Chorda filum and dense red seaweeds on shallow unstable infralittoral boulders or cobbles
A3.124 / IR.HIR.KSed.DesFilR - Dense Desmarestia spp. with filamentous red seaweeds on exposed infralittoral cobbles, pebbles and bedrock
A3.125 / IR.HIR.KSed.XKScrR - Mixed kelps with scour-tolerant and opportunistic foliose red seaweeds on scoured or sand-covered infralittoral rock
A3.126 / IR.HIR.KSed.XKHal - Halidrys siliquosa and mixed kelps on tide-swept infralittoral rock with coarse sediment
A3.127 / IR.HIR.KSed.ProtAhn - Polyides rotunda, Ahnfeltia plicata and Chondrus crispus on sand-covered infralittoral rock
A3.211 / IR.MIR.KR.Ldig - Laminaria digitata on moderately exposed sublittoral fringe rock
A3.2111 / IR.MIR.KR.Ldig.Ldig - Laminaria digitata on moderately exposed sublittoral fringe bedrock
A3.2112 / IR.MIR.KR.Ldig.Bo - Laminaria digitata and under-boulder fauna on sublittoral fringe boulders
A3.2113 / IR.MIR.KR.Ldig.Pid - Laminaria digitata and piddocks on sublittoral fringe soft rock
A3.212 / IR.MIR.KR.LhypT - Laminaria hyperborea on tide-swept, infralittoral rock
A3.2121 / IR.MIR.KR.LhypT.Ft - Laminaria hyperborea forest, foliose red seaweeds and a diverse fauna on tide-swept upper infralittoral rock
A3.2122 / IR.MIR.KR.LhypT.Pk - Laminaria hyperborea park with hydroids, bryozoans and sponges on tide-swept lower infralittoral rock
A3.213 / IR.MIR.KR.LhypTX - Laminaria hyperborea on tide-swept infralittoral mixed substrata
A3.2131 / IR.MIR.KR.LhypTX.Ft - Laminaria hyperborea forest and foliose red seaweeds on tide-swept upper infralittoral mixed substrata
A3.2132 / IR.MIR.KR.LhypTX.Pk - Laminaria hyperborea park and foliose red seaweeds on tide-swept lower infralittoral mixed substrata
A3.214 / IR.MIR.KR.Lhyp - Laminaria hyperborea and foliose red seaweeds on moderately exposed infralittoral rock
A3.2141 / IR.MIR.KR.Lhyp.Ft - Laminaria hyperborea forest and foliose red seaweeds on moderately exposed upper infralittoral rock
A3.2142 / IR.MIR.KR.Lhyp.Pk - Laminaria hyperborea park and foliose red seaweeds on moderately exposed lower infralittoral rock
A3.2143 / IR.MIR.KR.Lhyp.GzFt - Grazed Laminaria hyperborea forest with coralline crusts on upper infralittoral rock
A3.2144 / IR.MIR.KR.Lhyp.GzPk - Grazed Laminaria hyperborea park with coralline crusts on lower infralittoral rock
A3.2145 / IR.MIR.KR.Lhyp.Sab - Sabellaria spinulosa with kelp and red seaweeds on sand-influenced infralittoral rock
A3.215 / IR.MIR.KR.XFoR - Dense foliose red seaweeds on silty moderately exposed infralittoral rock
A3.216 / IR.MIR.KR.LhypVt - Laminaria hyperborea on moderately exposed vertical rock.
A3.217 / IR.MIR.KR.HiaSw - Hiatella arctica and seaweeds on vertical limestone / chalk.
A3.221 / IR.MIR.KT.LdigT - Laminaria digitata, ascidians and bryozoans on tide-swept sublittoral fringe rock
A3.222 / IR.MIR.KT.XKT - Mixed kelp with foliose red seaweeds, sponges and ascidians on sheltered tide-swept infralittoral rock
A3.223 / IR.MIR.KT.XKTX - Mixed kelp and red seaweeds on infralittoral boulders, cobbles and gravel in tidal rapids
A3.224 / IR.MIR.KT.SlatT - Saccharina latissima with foliose red seaweeds and ascidians on sheltered tide-swept infralittoral rock
A3.225 / IR.MIR.KT.FilRVS - Filamentous red seaweeds, sponges and Balanus crenatus on tide-swept variable-salinity infralittoral rock
A3.311 / IR.LIR.K.LhypLoch - Mixed Laminaria hyperborea and Laminaria ochroleuca forest on moderately exposed or sheltered infralittoral rock
A3.312 / IR.LIR.K.LhypSlat - Mixed Laminaria hyperborea and Saccharina latissima on sheltered infralittoral rock
A3.3121 / IR.LIR.K.LhypSlat.Ft - Mixed Laminaria hyperborea and Saccharina latissima forest on sheltered upper infralittoral rock
A3.3122 / IR.LIR.K.LhypSlat.Pk - Mixed Laminaria hyperborea and Saccharina latissima park on sheltered lower infralittoral rock
A3.3123 / IR.LIR.K.LhypSlat.Gz - Grazed, mixed Laminaria hyperborea and Saccharina latissima on sheltered infralittoral rock
A3.313 / IR.LIR.K.Slat - Saccharina latissima on very sheltered infralittoral rock
A3.3131 / IR.LIR.K.Slat.Ldig - Saccharina latissima and Laminaria digitata on sheltered sublittoral fringe rock
A3.3132 / IR.LIR.K.Slat.Ft - Saccharina latissima forest on very sheltered upper infralittoral rock
A3.3133 / IR.LIR.K.SLat.Pk - Saccharina latissima park on very sheltered lower infralittoral rock
A3.3134 / IR.LIR.K.Slat.Gz - Grazed Saccharina latissima with Echinus, brittlestars and coralline crusts on sheltered infralittoral rock
A3.314 / IR.LIR.K.LhypCape - Silted cape-form Laminaria hyperborea on very sheltered infralittoral rock
A3.315 / IR.LIR.K.Sar - Sargassum muticum on shallow slightly tide-swept infralittoral mixed substrata
A3.321 / IR.LIR.KVS.Cod - Codium spp. with red seaweeds and sparse Saccharina latissima on shallow, heavily-silted, very sheltered infralittoral rock
A3.322 / IR.LIR.KVS.SlatPsaVS - Saccharina latissima and Psammechinus miliaris on variable salinity grazed infralittoral rock
A3.323 / IR.LIR.KVS.SlatPhyVS - Saccharina latissima with Phyllophora spp. and filamentous green seaweeds on variable or reduced salinity infralittoral rock
A3.341 / IR.LIR.Lag.FChoG - Mixed fucoids, Chorda filum and green seaweeds on reduced salinity infralittoral rock
A3.342 / IR.LIR.Lag.AscSpAs - Ascophyllum nodosum with epiphytic sponges and ascidians on variable salinity infralittoral rock
A3.343 / IR.LIR.Lag.ProtFur - Polyides rotunda and/or Furcellaria lumbricalis on reduced salinity infralittoral rock
A3.344 / IR.LIR.Lag.FcerUlv - Fucus ceranoides and Ulva spp. on low salinity infralittoral rock
A3.361 / IR.LIR.IFaVS.MytRS - Mytilus edulis beds on reduced salinity infralittoral rock
A3.362 / IR.LIR.IFaVS.CcasEin - Cordylophora caspia and Einhornia crustulenta on reduced salinity infralittoral rock
A3.363 / IR.LIR.IFaVS.HarCon - Hartlaubella gelatinosa and Conopeum reticulum on low salinity infralittoral mixed substrata
A3.711 / IR.FIR.SG.FoSwCC - Foliose seaweeds and coralline crusts in surge gully entrances
A3.712 / IR.FIR.SG.CrSpAsAn - Anemones, including Corynactis viridis, crustose sponges and colonial ascidians on very exposed or wave surged vertical infralittoral rock
A3.713 / IR.FIR.SG.CrSpAsDenB - Crustose sponges and colonial ascidians with Dendrodoa grossularia or barnacles on wave-surged infralittoral rock
A3.714 / IR.FIR.SG.DenCcor - Dendrodoa grossularia and Clathrina coriacea on wave-surged vertical infralittoral rock
A3.715 / IR.FIR.SG.CrSp - Crustose sponges on extremely wave-surged infralittoral cave or gully walls
A3.716 / IR.FIR.SG.CC - Coralline crusts in surge gullies and scoured infralittoral rock
A3.7161 / IR.FIR.SG.CC.BalSpi - Balanus crenatus and/or Spirobranchus triqueter with spirorbid worms and coralline crusts on severely-scoured vertical infralittoral rock
A3.7162 / IR.FIR.SG.CC.Mo - Coralline crusts and crustaceans on mobile boulders or cobbles in surge gullies
A4.111 / CR.HCR.FaT.BalTub - Balanus crenatus and Tubularia indivisa on extremely tide-swept circalittoral rock
A4.112 / CR.HCR.FaT.CTub - Tubularia indivisa on tide-swept circalittoral rock
A4.1121 / CR.HCR.FaT.CTub.CuSp - Tubularia indivisa and cushion sponges on tide-swept turbid circalittoral bedrock
A4.1122 / CR.HCR.FaT.CTub.Adig - Alcyonium digitatum with dense Tubularia indivisa and anemones on strongly tide-swept circalittoral rock
A4.12 / CR.HCR.DpSp - Deep sponge communities (circalittoral)
A4.121 / CR.HCR.DpSp.PhaAxi - Phakellia ventilabrum and Axinellid sponges on deep, wave- exposed circalittoral rock
A4.131 / CR.HCR.XFa.ByErSp - Bryozoan turf and erect sponges on tide-swept circalittoral rock
A4.1311 / CR.HCR.XFa.ByErSp.Eun - Eunicella verrucosa and Pentapora foliacea on wave-exposed circalittoral rock
A4.1312 / CR.HCR.XFa.ByErSp.DysAct - Mixed turf of bryozoans and erect sponges with Dysidea fragilis and Actinothoe sphyrodeta on tide-swept wave-exposed circalittoral rock
A4.1313 / CR.HCR.XFa.ByErSp.Cyl - Mixed turf of bryozoans and erect sponges with Cylista elegans on tide-swept circalittoral rock
A4.132 / CR.HCR.XFa.CvirCri - Corynactis viridis and a mixed turf of crisiids, Bugula, Scrupocellaria, and Cellaria on moderately tide-swept exposed circalittoral rock
A4.133 / CR.HCR.XFa.SwiLgAs - Mixed turf of hydroids and large ascidians with Swiftia pallida and Caryophyllia smithii on weakly tide-swept circalittoral rock
A4.134 / CR.HCR.XFa.FluCoAs - Flustra foliacea and colonial ascidians on tide-swept moderately wave-exposed circalittoral rock
A4.1341 / CR.HCR.XFa.FluCoAs.Paur - Polyclinum aurantium and Flustra foliacea on sand-scoured tide-swept moderately wave-exposed circalittoral rock
A4.1342 / CR.HCR.XFa.FluCoAs.SmAs - Flustra foliacea, small solitary and colonial ascidians on tide-swept circalittoral bedrock or boulders
A4.1343 / CR.HCR.XFa.FluCoAs.X - Flustra foliacea and colonial ascidians on tide-swept exposed circalittoral mixed substrata
A4.135 / CR.HCR.XFa.SpNemAdia - Sparse sponges, Nemertesia spp. and Alcyonidium diaphanum on circalittoral mixed substrata
A4.136 / CR.HCR.XFa.SubCriTf - Suberites spp. with a mixed turf of crisiids and Bugula spp. on heavily silted moderately wave-exposed shallow circalittoral rock
A4.137 / CR.HCR.XFa.FluHocu - Flustra foliacea and Haliclona oculata with a rich faunal turf on tide-swept circalittoral mixed substrata
A4.138 / CR.HCR.XFa.Mol - Molgula manhattensis with a hydroid and bryozoan turf on tide-swept moderately wave-exposed circalittoral rock
A4.139 / CR.HCR.XFa.SpAnVt - Sponges and anemones on vertical circalittoral bedrock
A4.211 / CR.MCR.EcCr.CarSwi - Caryophyllia smithii and Swiftia pallida on circalittoral rock
A4.2111 / CR.MCR.EcCr.CarSwi.Aglo - Caryophyllia smithii, Swiftia pallida and Alcyonium glomeratum on wave-sheltered circalittoral rock
A4.2112 / CR.MCR.EcCr.CarSwi.LgAs - Caryophyllia smithii, Swiftia pallida and large solitary ascidians on exposed or moderately exposed circalittoral rock
A4.212 / CR.MCR.EcCr.CarSp - Caryophyllia smithii, sponges and crustose communities on wave-exposed circalittoral rock
A4.2121 / CR.MCR.EcCr.CarSp.Bri - Brittlestars overlying coralline crusts, Parasmittina trispinosa and Caryophyllia smithii on wave-exposed circalittoral rock
A4.2122 / CR.MCR.EcCr.CarSp.PenPcom - Caryophyllia smithii and sponges with Pentapora foliacea, Porella compressa and crustose communities on wave-exposed circalittoral rock
A4.213 / CR.MCR.EcCr.UrtScr - Urticina felina and sand-tolerant fauna on sand-scoured or covered circalittoral rock
A4.214 / CR.MCR.EcCr.FaAlCr - Faunal and algal crusts on exposed to moderately wave-exposed circalittoral rock
A4.2141 / CR.MCR.EcCr.FaAlCr.Flu - Flustra foliacea on slightly scoured silty circalittoral rock
A4.2142 / CR.MCR.EcCr.FaAlCr.Adig - Alcyonium digitatum, Spirobranchus triqueter, algal and bryozoan crusts on wave-exposed circalittoral rock
A4.2143 / CR.MCR.EcCr.FaAlCr.Sec - Alcyonium digitatum with Securiflustra securifrons on tide-swept moderately wave-exposed circalittoral rock
A4.2144 / CR.MCR.EcCr.FaAlCr.Bri - Brittlestars on faunal and algal encrusted exposed to moderately wave-exposed circalittoral rock
A4.2145 / CR.MCR.EcCr.FaAlCr.Spi - Faunal and algal crusts with Spirobranchus triqueter and sparse Alcyonium digitatum on exposed to moderately wave-exposed circalittoral rock
A4.2146 / CR.MCR.EcCr.FaAlCr.Car - Caryophyllia smithii with faunal and algal crusts on moderately wave-exposed circalittoral rock
A4.215 / CR.MCR.EcCr.AdigVt - Alcyonium digitatum and faunal crust communities on vertical circalittoral bedrock
A4.22 / CR.MCR.CSab - Circalittoral Sabellaria reefs (on rock)
A4.221 / CR.MCR.CSab.Sspi - Sabellaria spinulosa encrusted circalittoral rock
A4.2211 / CR.MCR.CSab.Sspi.ByB - Sabellaria spinulosa with a bryozoan turf and barnacles on silty turbid circalittoral rock
A4.2212 / CR.MCR.CSab.Sspi.As - Sabellaria spinulosa, didemnids and other small ascidians on tide-swept moderately wave-exposed circalittoral rock
A4.231 / CR.MCR.SfR.Pid - Piddocks with a sparse associated fauna in sublittoral very soft chalk or clay
A4.232 / CR.MCR.SfR.Pol - Polydora sp. tubes on moderately exposed sublittoral soft rock
A4.233 / CR.MCR.SfR.Hia - Hiatella-bored vertical sublittoral limestone rock
A4.241 / CR.MCR.CMus.CMyt - Mytilus edulis beds with hydroids and ascidians on tide-swept exposed to moderately wave-exposed circalittoral rock
A4.242 / CR.MCR.CMus.Mdis - Musculus discors beds on moderately exposed circalittoral rock
A4.25 / CR.MCR.CFaVS - Circalittoral faunal communities in variable salinity
A4.251 / CR.MCR.CFaVS.CuSpH - Cushion sponges and hydroids on turbid tide-swept sheltered circalittoral rock
A4.2511 / CR.MCR.CFaVS.CuSpH.As - Cushion sponges, hydroids and ascidians on turbid tide-swept sheltered circalittoral rock
A4.2512 / CR.MCR.CFaVS.CuSpH.VS - Cushion sponges and hydroids on turbid tide-swept variable salinity sheltered circalittoral rock
A4.252 / CR.MCR.CFaVS.HbowEud - Halichondria bowerbanki, Eudendrium arbuscula and Eucratea loricata on reduced salinity tide-swept circalittoral mixed substrata
A4.311 / CR.LCR.BrAs.AmenCio - Solitary ascidians, including Ascidia mentula and Ciona intestinalis, on wave-sheltered circalittoral rock
A4.3111 / CR.LCR.BrAs.AmenCio.Ant - Solitary ascidians, including Ascidia mentula and Ciona intestinalis, with Antedon spp. on wave-sheltered circalittoral rock
A4.3112 / CR.LCR.BrAs.AmenCio.Bri - Dense brittlestars with sparse Ascidia mentula and Ciona intestinalis on sheltered circalittoral mixed substrata
A4.312 / CR.LCR.BrAs.LgAsSp - Large solitary ascidians and erect sponges on wave-sheltered circalittoral rock
A4.313 / CR.LCR.BrAs.AntAsH - Antedon spp., solitary ascidians and fine hydroids on sheltered circalittoral rock
A4.314 / CR.LCR.BrAs.NovPro - Novocrania anomala and Protanthea simplex on sheltered circalittoral rock
A4.3141 / CR.LCR.BrAs.NovPro.FS - Novocrania anomala and Protanthea simplex on very wave-sheltered circalittoral rock
A4.3142 / CR.LCR.BrAs.NovPro.VS - Novocrania anomala, Dendrodoa grossularia and Rolandia coralloides on variable salinity circalittoral rock
A4.71 / CR.FCR.Cv - Circalittoral caves and overhangs
A4.711 / CR.FCR.Cv.SpCup - Sponges, cup corals and anthozoans on shaded or overhanging circalittoral rock
A4.721 / CR.FCR.FouFa.AdigMsen - Alcyonium digitatum and Metridium senile on moderately wave-exposed circalittoral steel wrecks
A5.12 / SS.SCS.SCSVS - Sublittoral coarse sediment in variable salinity (estuaries)
A5.131 / SS.SCS.ICS.SSh - Sparse fauna on highly mobile sublittoral shingle (cobbles and pebbles)
A5.132 / SS.SCS.ICS.HchrEdw - Halcampa chrysanthellum and Edwardsia timida on sublittoral clean stone gravel
A5.133 / SS.SCS.ICS.MoeVen - Moerella spp. with venerid bivalves in infralittoral gravelly sand
A5.134 / SS.SCS.ICS.HeloMsim - Hesionura elongata and Microphthalmus similis with other interstitial polychaetes in infralittoral mobile coarse sand
A5.135 / SS.SCS.ICS.Glap - Glycera lapidum in impoverished infralittoral mobile gravel and sand
A5.136 / SS.SCS.ICS.CumCset - Cumaceans and Chaetozone setosa in infralittoral gravelly sand
A5.137 / SS.SCS.ICS.SLan - Dense Lanice conchilega and other polychaetes in tide-swept infralittoral sand and mixed gravelly sand
A5.141 / SS.SCS.CCS.SpiB - Spirobranchus triqueter with barnacles and bryozoan crusts on unstable circalittoral cobbles and pebbles
A5.142 / SS.SCS.CCS.MedLumVen - Mediomastus fragilis, Lumbrineris spp. and venerid bivalves in circalittoral coarse sand or gravel
A5.143 / SS.SCS.CCS.Pkef - Protodorvillea kefersteini and other polychaetes in impoverished circalittoral mixed gravelly sand
A5.144 / SS.SCS.CCS.Nmix - Neopentadactyla mixta in circalittoral shell gravel or coarse sand
A5.145 / SS.SCS.CCS.Blan - Branchiostoma lanceolatum in circalittoral coarse sand with shell gravel
A5.151 / SS.SCS.OCS.GlapThyAmy - Glycera lapidum, Thyasira spp. and Amythasides macroglossus in offshore gravelly sand
A5.152 / SS.SCS.OCS.HeloPkef - Hesionura elongata and Protodorvillea kefersteini in offshore coarse sand
A5.21 / SS.SSa.SSaLS - Sublittoral sand in low or reduced salinity (lagoons)
A5.22 / SS.SSa.SSaVS - Sublittoral sand in variable salinity (estuaries)
A5.221 / SS.SSa.SSaVS.MoSaVS - Infralittoral mobile sand in variable salinity (estuaries)
A5.222 / SS.SSa.SSaVS.NcirAm - Nephtys cirrosa and amphipods in variable salinity infralittoral mobile sand
A5.223 / SS.SSa.SSaVS.NintGam - Neomysis integer and Gammarus spp. in fluctuating low salinity infralittoral mobile sand
A5.231 / SS.SSa.IFiSa.IMoSa - Infralittoral mobile clean sand with sparse fauna
A5.232 / SS.SSa.IFiSa.ScupHyd - Sertularia cupressina and Hydrallmania falcata on tide-swept sublittoral sand with cobbles or pebbles.
A5.233 / SS.SSa.IFiSa.NcirBat - Nephtys cirrosa and Bathyporeia spp. in infralittoral sand
A5.234 / SS.SSa.IFiSa.TbAmPo - Semi-permanent tube-building amphipods and polychaetes in sublittoral sand
A5.241 / SS.SSa.IMuSa.EcorEns - Echinocardium cordatum and Ensis spp. in lower shore and shallow sublittoral slightly muddy fine sand
A5.242 / SS.SSa.IMuSa.FfabMag - Fabulina fabula and Magelona mirabilis with venerid bivalves and amphipods in infralittoral compacted fine muddy sand
A5.243 / SS.SSa.IMuSa.AreISa - Arenicola marina in infralittoral fine sand or muddy sand
A5.244 / SS.SSa.IMuSa.SsubNhom - Spisula subtruncata and Nephtys hombergii in shallow muddy sand
A5.251 / SS.SSa.CFiSa.EpusOborApri - Echinocyamus pusillus, Ophelia borealis and Abra prismatica in circalittoral fine sand
A5.252 / SS.SSa.CFiSa.ApriBatPo - Abra prismatica, Bathyporeia elegans and polychaetes in circalittoral fine sand
A5.252TMP / SS.SSa.CFiSa.SiphNephVen - Siphonoecetes, Nephtyidae polychaetes and venerid bivalves in circalittoral sand
A5.261 / SS.SSa.CMuSa.AalbNuc - Abra alba and Nucula nitidosa in circalittoral muddy sand or slightly mixed sediment
A5.262 / SS.SSa.CMuSa.AbraAirr - Acrocnida brachiata with Astropecten irregularis and other echinoderms in circalittoral muddy sand
A5.262TMP / SS.SSa.CMuSa.Ooph - Ophiura ophiura on circalittoral muddy sand
A5.271 / SS.SSa.OSa.MalEdef - Maldanid polychaetes and Eudorellopsis deformis in offshore circalittoral sand or muddy sand
A5.272 / SS.SSa.OSa.OfusAfil - Owenia fusiformis and Amphiura filiformis in offshore circalittoral sand or muddy sand
A5.31 / SS.SMu.SMuLS - Sublittoral mud in low or reduced salinity (lagoons)
A5.321 / SS.SMu.SMuVS.PolCvol - Polydora ciliata and Corophium volutator in variable salinity infralittoral firm mud or clay
A5.322 / SS.SMu.SMuVS.AphTubi - Aphelochaeta marioni and Tubificoides spp. in variable salinity infralittoral mud
A5.323 / SS.SMu.SMuVS.NhomTubi - Nephtys hombergii and Tubificoides spp. in variable salinity infralittoral soft mud
A5.324 / SS.SMu.SMuVS.MoMu - Infralittoral fluid mobile mud
A5.325 / SS.SMu.SMuVS.CapTubi - Capitella capitata and Tubificoides spp. in reduced salinity infralittoral muddy sediment
A5.326 / SS.SMu.SMuVS.OlVS - Oligochaetes in variable or reduced salinity infralittoral muddy sediment
A5.327 / SS.SMu.SMuVS.LhofTtub - Limnodrilus hoffmeisteri, Tubifex tubifex and Gammarus spp. in low salinity infralittoral muddy sediment
A5.331 / SS.SMu.ISaMu.NhomMac - Nephtys hombergii and Macoma balthica in infralittoral sandy mud
A5.332 / SS.SMu.ISaMu.CundAasp - Cylista undata and Ascidiella aspersa on infralittoral sandy mud
A5.333 / SS.SMu.ISaMu.KurAbr - Kurtiella bidentata and Abra spp. in infralittoral sandy mud
A5.334 / SS.SMu.ISaMu.MelMagThy - Melinna palmata with Magelona spp. and Thyasira spp. in infralittoral sandy mud
A5.335 / SS.SMu.ISaMu.AmpPlon - Ampelisca spp., Photis longicaudata and other tube-building amphipods and polychaetes in infralittoral sandy mud
A5.336 / SS.SMu.ISaMu.Cap - Capitella capitata in enriched sublittoral muddy sediments
A5.341 / SS.SMu.IFiMu.CerAnit - Cerastoderma edule with Abra nitida in infralittoral mud
A5.342 / SS.SMu.IFiMu.Are - Arenicola marina in infralittoral mud
A5.343 / SS.SMu.IFiMu.PhiVir - Philine aperta and Virgularia mirabilis in soft stable infralittoral mud
A5.344 / SS.SMu.IFiMu.Ocn - Ocnus planci aggregations on sheltered sublittoral muddy sediment
A5.351 / SS.SMu.CSaMu.AfilKurAnit - Amphiura filiformis, Kurtiella bidentata and Abra nitida in circalittoral sandy mud
A5.352 / SS.SMu.CSaMu.ThyEten - Thyasira spp. and Ennucula tenuis in circalittoral sandy mud
A5.353 / SS.SMu.CSaMu.AfilEten - Amphiura filiformis and Ennucula tenuis in circalittoral and offshore sandy mud
A5.354 / SS.SMu.CSaMu.VirOphPmax - Virgularia mirabilis and Ophiura spp. with Pecten maximus on circalittoral sandy or shelly mud
A5.3541 / SS.SMu.CSaMu.VirOphPmax.HAs - Virgularia mirabilis and Ophiura spp. with Pecten maximus, hydroids and ascidians on circalittoral sandy or shelly mud with stones
A5.355 / SS.SMu.CSaMu.LkorPpel - Lagis koreni and Phaxas pellucidus in circalittoral sandy mud
A5.361 / SS.SMu.CFiMu.SpnMeg - Sea pens and burrowing megafauna in circalittoral fine mud
A5.3611 / SS.SMu.CFiMu.SpnMeg.Fun - Sea pens, including Funiculina quadrangularis, and burrowing megafauna in undisturbed circalittoral fine mud
A5.362 / SS.SMu.CFiMu.MegMax - Burrowing megafauna Maxmuelleria lankesteri in circalittoral mud
A5.363 / SS.SMu.CFiMu.BlyrAchi - Brissopsis lyrifera and Amphiura chiajei in circalittoral mud
A5.363TMP / SS.SMu.CFiMu.AtrEch - Atrina fragilis and echinoderms on circalittoral mud
A5.371 / SS.SMu.OMu.AfalPpin - Ampharete falcata turf with Parvicardium pinnulatum on cohesive muddy sediment near margins of deep stratified seas
A5.372 / SS.SMu.OMu.ForThy - Foraminiferans and Thyasira sp. in deep circalittoral fine mud
A5.373 / SS.SMu.OMu.StyPse - Styela gelatinosa, Pseudamussium peslutrae and solitary ascidians on sheltered deep circalittoral muddy sediment
A5.374 / SS.SMu.OMu.CapThy - Capitella capitata and Thyasira spp. in organically-enriched offshore circalittoral mud and sandy mud
A5.3741 / SS.SMu.OMu.CapThy.Odub - Capitella capitata, Thyasira spp. and Ophryotrocha dubia in organically-enriched offshore circalittoral sandy mud
A5.375 / SS.SMu.OMu.LevHet - Levinsenia gracilis and Heteromastus filifirmis in offshore circalittoral mud and sandy mud
A5.376 / SS.SMu.OMu.PjefThyAfil - Paramphinome jeffreysii, Thyasira spp. and Amphiura filiformis in offshore circalittoral sandy mud
A5.377 / SS.SMu.OMu.MyrPo - Myrtea spinifera and polychaetes in offshore circalittoral sandy mud
A5.377TMP / SS.SMu.OMu.CalPol - Calocaris macandreae and polychaetes in offshore circalittoral mud and sandy mud
A5.41 / SS.SMx.SMxLS - Sublittoral mixed sediment in low or reduced salinity (lagoons)
A5.421 / SS.SMx.SMxVS.AphPol - Aphelochaeta spp. and Polydora spp. in variable salinity infralittoral mixed sediment
A5.422 / SS.SMx.SMxVS.CreMed - Crepidula fornicata and Mediomastus fragilis in variable salinity infralittoral mixed sediment
A5.431 / SS.SMx.IMx.CreAsAn - Crepidula fornicata with ascidians and anemones on infralittoral coarse mixed sediment
A5.432 / SS.SMx.IMx.SpavSpAn - Sabella pavonina with sponges and anemones on infralittoral mixed sediment
A5.433 / SS.SMx.IMx.VcorAsquAps - Venerupis corrugata, Amphipholis squamata and Apseudes latreilli in infralittoral mixed sediment
A5.434 / SS.SMx.IMx.Lim - Limaria hians beds in tide-swept sublittoral muddy mixed sediment
A5.435 / SS.SMx.IMx.Ost - Ostrea edulis beds on shallow sublittoral muddy mixed sediment
A5.435TMP / SS.SMx.IMx.MedCirr - Mediomastus fragilis and cirratulids in infralittoral mixed sediment
A5.441 / SS.SMx.CMx.ClloMx - Cerianthus lloydii and other burrowing anemones in circalittoral muddy mixed sediment
A5.4411 / SS.SMx.CMx.ClloMx.Nem - Cerianthus lloydii with Nemertesia spp. and other hydroids in circalittoral muddy mixed sediment
A5.442 / SS.SMx.CMx.ClloModHo - Sparse Modiolus modiolus, dense Cerianthus lloydii and burrowing holothurians on sheltered circalittoral stones and mixed sediment
A5.443 / SS.SMx.CMx.KurThyMx - Kurtiella bidentata and Thyasira spp. in circalittoral muddy mixed sediment
A5.444 / SS.SMx.CMx.FluHyd - Flustra foliacea and Hydrallmania falcata on tide-swept circalittoral mixed sediment
A5.445 / SS.SMx.CMx.OphMx - Ophiothrix fragilis and/or Ophiocomina nigra brittlestar beds on sublittoral mixed sediment
A5.451 / SS.SMx.OMx.PoVen - Polychaete-rich deep Venus community in offshore mixed sediments
A5.51 / SS.SMp.Mrl - Maerl beds
A5.511 / SS.SMp.Mrl.Pcal - Phymatolithon calcareum maerl beds in infralittoral clean gravel or coarse sand
A5.5111 / SS.SMp.Mrl.Pcal.R - Phymatolithon calcareum maerl beds with red seaweeds in shallow infralittoral clean gravel or coarse sand
A5.5112 / SS.SMp.Mrl.Pcal.Nmix - Phymatolithon calcareum maerl beds with Neopentadactyla mixta and other echinoderms in deeper infralittoral clean gravel or coarse sand
A5.512 / SS.SMp.Mrl.Lgla - Lithothamnion glaciale maerl beds in tide-swept variable salinity infralittoral gravel
A5.513 / SS.SMp.Mrl.Lcor - Lithothamnion corallioides maerl beds on infralittoral muddy gravel
A5.521 / SS.SMp.KSwSS.SlatR - Saccharina latissima and red seaweeds on infralittoral sediments
A5.5211 / SS.SMp.KSwSS.SlatR.CbPb - Red seaweeds and kelps on tide-swept mobile infralittoral cobbles and pebbles
A5.5212 / SS.SMp.KSwSS.SlatR.Gv - Saccharina latissima and robust red algae on infralittoral gravel and pebbles
A5.5213 / SS.SMp.KSwSS.SlatR.Sa - Saccharina latissima and filamentous red algae on infralittoral sand
A5.5214 / SS.SMp.KSwSS.SlatR.Mu - Saccharina latissima with red and brown seaweeds on lower infralittoral muddy mixed sediment
A5.522 / SS.SMp.KSwSS.SlatCho - Saccharina latissima and Chorda filum on sheltered upper infralittoral muddy sediment
A5.523 / SS.SMp.KSwSS.SlatMxVS - Saccharina latissima with Psammechinus miliaris and/or Modiolus modiolus on variable salinity infralittoral mixed sediment
A5.524 / SS.SMp.KSwSS.SlatGraFS - Saccharina latissima, Gracilaria gracilis and brown seaweeds on full salinity infralittoral sediment
A5.525 / SS.SMp.KSwSS.SlatGraVS - Saccharina latissima and Gracilaria gracilis with sponges and ascidians on variable salinity infralittoral sediment
A5.526 / SS.SMp.KSwSS.Tra - Mats of Trailliella on infralittoral muddy gravel
A5.527 / SS.SMp.KSwSS.Pcri - Loose-lying mats of Phyllophora crispa on infralittoral muddy sediment
A5.528 / SS.SMp.KSwSS.FilG - Filamentous green seaweeds on low salinity infralittoral mixed sediment or rock
A5.5331 / SS.SMp.SSgr.Zmar - Zostera marina/angustifolia beds on lower shore or infralittoral clean or muddy sand
A5.5343 / SS.SMp.SSgr.Rup - Ruppia maritima in reduced salinity infralittoral muddy sand
A5.61 / SS.SBR.PoR - Polychaete worm reefs (on sublittoral sediment)
A5.611 / SS.SBR.PoR.SspiMx - Sabellaria spinulosa on stable circalittoral mixed sediment
A5.612 / SS.SBR.PoR.SalvMx - Sabellaria alveolata on variable salinity sublittoral mixed sediment
A5.613 / SS.SBR.PoR.Ser - Serpula vermicularis reefs on very sheltered circalittoral muddy sand
A5.621 / SS.SBR.SMus.ModT - Modiolus modiolus beds with hydroids and red seaweeds on tide-swept circalittoral mixed substrata
A5.622 / SS.SBR.SMus.ModMx - Modiolus modiolus beds on open coast circalittoral mixed sediment
A5.623 / SS.SBR.SMus.ModHAs - Modiolus modiolus beds with fine hydroids and large solitary ascidians on very sheltered circalittoral mixed substrata
A5.624 / SS.SBR.SMus.ModMvar - Modiolus modiolus beds with Mimachlamys varia, sponges, hydroids and bryozoans on slightly tide-swept very sheltered circalittoral mixed substrata
A5.625 / SS.SBR.SMus.MytSS - Mytilus edulis beds on sublittoral sediment
A5.631 / SS.SBR.Crl.Lop - Lophelia reefs
A5.71 / A5.71 - Seeps and vents in sublittoral sediments
A5.712 / A5.712 - Bubbling reefs in the aphotic zone
A5.7211 / SS.SMu.IFiMu.Beg - Beggiatoa spp. on anoxic sublittoral mud
A6.611 / M.AtUB.Bi.CorRee.LopPer - Atlantic upper bathyal live Lophelia pertusa reef (biogenic structure)
A6.621 / M.AtLB.Mu.DeeSpo.PheCar - Pheronema carpenteri field on Atlantic lower bathyal mud
A6.621 / M.AtMB.Mu.DeeSpo.PheCar - Pheronema carpenteri field on Atlantic mid bathyal mud
B3.111 / LR.FLR.Lic.YG - Yellow and grey lichens on supralittoral rock
B3.112 / LR.FLR.Lic.Pra - Prasiola stipitata on nitrate-enriched supralittoral or littoral fringe rock
B3.113 / LR.FLR.Lic.Ver - Verrucaria maura on littoral fringe rock
B3.1131 / LR.FLR.Lic.Ver.B - Verrucaria maura and sparse barnacles on exposed littoral fringe rock
B3.1132 / LR.FLR.Lic.Ver.Ver - Verrucaria maura on very exposed to very sheltered upper littoral fringe rock
B3.114 / LR.FLR.Lic.Bli - Blidingia spp. on vertical littoral fringe soft rock
B3.115 / LR.FLR.Lic.UloUro - Ulothrix flacca and Urospora spp. on freshwater-influenced vertical littoral fringe soft rock
M.AAUB.Co.DeeSpo.GeoSpo - Geodia and other massive sponges on Atlanto-Arctic upper bathyal coarse sediment
M.AAUB.Mx.DeeSpo.GeoSpo - Geodia and other massive sponges on Atlanto-Arctic upper bathyal mixed sediment
M.ArMB.Ro.MixCor.CorGer - Corymorpha, Gersemia, Zoantharia and Heliometra glacialis on Arctic mid bathyal rock and other hard substrata
M.AtLB.Bi.CorRee.SolVar - Atlantic lower bathyal live Solenosmilia variabilis reef (biogenic structure)
M.AtLB.Co.MixCor.DisSol - Discrete Solenosmilia variabilis colonies on Atlantic lower bathyal coarse sediment
M.AtLB.Co.XenCom.SyrFra - Syringammina fragilissima field on Atlantic lower bathyal coarse sediment
M.AtLB.Mu.EreCor.AcaArb - Acanella arbuscula assemblage on Atlantic lower bathyal mud
M.AtLB.Mu.UrcCom.GraAcu - Gracilechinus acutus norvegicus assemblage on Atlantic lower bathyal mud
M.AtLB.Mu.UrcCom.GraAle - Gracilechinus alexandri, Psilaster and Plinthaster assemblage on Atlantic lower bathyal mud
M.AtLB.Mu.XenCom.SyrFra - Syringammina fragilissima field on Atlantic lower bathyal mud
M.AtLB.Mx.XenCom.SyrFra - Syringammina fragilissima field on Atlantic lower bathyal mixed sediment
M.AtLB.Ro.MixCor.DisSol - Discrete Solenosmilia variabilis colonies on Atlantic lower bathyal rock and other hard substrata
M.AtLB.Sa.UrcCom.GraAcu - Gracilechinus acutus norvegicus assemblage on Atlantic lower bathyal sand
M.AtMB.Bi.CorRee.LopFra - Mixed coral assemblage on Atlantic mid bathyal Lophelia pertusa reef framework (biogenic structure)
M.AtMB.Co.CriCom.LepCel - Leptometra celtica assemblage on Atlantic mid bathyal coarse sediment
M.AtMB.Co.MixCor.DisLop - Discrete Lophelia pertusa colonies on Atlantic mid bathyal coarse sediment
M.AtMB.Co.SpaEnc.SquRub - Squat lobster assemblage on Atlantic mid bathyal coarse sediment (Lophelia rubble)
M.AtMB.Co.XenCom.SyrFra - Syringammina fragilissima field on Atlantic mid bathyal coarse sediment
M.AtMB.Mu.BurAne.CerAne - Cerianthid anemones and burrowing megafauna in Atlantic mid bathyal mud
M.AtMB.Mu.EreCor.AcaArb - Acanella arbuscula assemblage on Atlantic mid bathyal mud
M.AtMB.Mu.SpnMeg.KopFie - Kophobelemnon fields on Atlantic mid bathyal mud
M.AtMB.Mu.UrcCom.GraAcu - Gracilechinus acutus norvegicus assemblage on Atlantic mid bathyal mud
M.AtMB.Mu.XenCom.SyrFra - Syringammina fragilissima field on Atlantic mid bathyal mud
M.AtMB.Mx.XenCom.SyrFra - Syringammina fragilissima field on Atlantic mid bathyal mixed sediment
M.AtMB.Ro.MixCor.DisLop - Discrete Lophelia pertusa colonies on Atlantic mid bathyal rock and other hard substrata
M.AtMB.Ro.SpaEnc.PsoAno - Psolus squamatus, Anomiidae, serpulid polychaetes and Munida on Atlantic mid bathyal rock and other hard substrata
M.AtMB.Ro.SpaEnc.PsoSpo - Psolus squamatus and encrusting sponge assemblage on Atlantic mid bathyal rock and other hard substrata
M.AtMB.Sa.CriCom.LepCel - Leptometra celtica assemblage on Atlantic mid bathyal sand
M.AtMB.Sa.UrcCom.GraAcu - Gracilechinus acutus norvegicus assemblage on Atlantic mid bathyal sand
M.AtUA.Mu.UrcCom.GraAle - Gracilechinus alexandri, Psilaster and Plinthaster assemblage on Atlantic upper abyssal mud
M.AtUB.Bi.CorRee.LopFra - Mixed coral assemblage on Atlantic upper bathyal Lophelia pertusa reef framework (biogenic structure)
M.AtUB.Co.CriCom.LepCel - Leptometra celtica assemblage on Atlantic upper bathyal coarse sediment
M.AtUB.Co.MixCor.DisLop - Discrete Lophelia pertusa colonies on Atlantic upper bathyal coarse sediment
M.AtUB.Co.SolScl.CarAct - Caryophyllia smithii and Actinauge richardi assemblage on Atlantic upper bathyal coarse sediment
M.AtUB.Co.SpaEnc.SquRub - Squat lobster assemblage on Atlantic upper bathyal coarse sediment (Lophelia rubble)
M.AtUB.Mu.SpnMeg.KopFie - Kophobelemnon fields on Atlantic upper bathyal mud
M.AtUB.Ro.DeeSpo.RetAxi - Reteporella and Axinellid sponges on Atlantic upper bathyal rock and other hard substrata
M.AtUB.Ro.DeeSpo.SpoSty - Lobose sponge and stylasterid assemblage on Atlantic upper bathyal rock and other hard substrata
M.AtUB.Ro.MixCor.DisLop - Discrete Lophelia pertusa colonies on Atlantic upper bathyal rock and other hard substrata
M.AtUB.Ro.SpaEnc.PsoAno - Psolus squamatus, Anomiidae, serpulid polychaetes and Munida on Atlantic upper bathyal rock and other hard substrata
M.AtUB.Ro.SpaEnc.PsoSpo - Psolus squamatus and encrusting sponge assemblage on Atlantic upper bathyal rock and other hard substrata
M.AtUB.Sa.CriCom.LepCel - Leptometra celtica assemblage on Atlantic upper bathyal sand
M.AtUB.Sa.UrcCom.GraAcu - Gracilechinus acutus norvegicus assemblage on Atlantic upper bathyal sand
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