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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...
IR.LIR.K Silted kelp communities (sheltered infralittoral rock)
Published date 2015-03Infralittoral rock in wave and tide-sheltered conditions, supporting silty communities with Laminaria hyperborea and/or Saccharina latissima. Associated seaweeds are typically silt-tolerant and includ...
CR.FCR Features of circalittoral rock
Published date 2015-03Circalittoral rock features include circalittoral fouling communities (CR.FCR.FouFa) and circalittoral caves and overhangs (CR.FCR.Cv). These features are present throughout the circalittoral zone in ...
SS.SSa.CMuSa.AbraAirr Acrocnida brachiata with Astropecten irregularis and other echinoderms in circalittoral muddy sand
Published date 2015-03In shallow, circalittoral non-cohesive muddy sand (typically less than 20% silt/clay) abundant populations of the brittlestar Acrocnida brachiata may occur with other echinoderms such as Astropecten i...
CR.HCR.XFa.SubCriTf Suberites spp. with a mixed turf of crisiids and Bugula spp. on heavily silted moderately wave-exposed shallow circalittoral rock
Published date 2015-03This biotope is found on heavily silted, moderately wave-exposed circalittoral bedrock and boulders (often limestone) that are subject to moderately strong tidal streams. A very high silt loading in t...
IR.LIR.K.LhypCape Silted cape-form Laminaria hyperborea on very sheltered infralittoral rock
Published date 2015-03Cape-form of the kelp Laminaria hyperborea on very silted rock, particularly in extremely sheltered sealochs of western Scotland. Below the huge kelp fronds (which often trail onto the seabed) foliose...
IR.MIR.KT.SlatT Saccharina latissima with foliose red seaweeds and ascidians on sheltered tide-swept infralittoral rock
Published date 2015-03Sheltered, tide-swept rock in south-western Britain tends to be restricted to estuarine conditions, where variable salinity and increased turbidity have a significant effect on the biota. Due to the t...
SS.SMx.CMx.ClloMx Cerianthus lloydii and other burrowing anemones in circalittoral muddy mixed sediment
Published date 2015-03Circalittoral plains of sandy muddy gravel may be characterised by burrowing anemones such as Cerianthus lloydii. Other burrowing anemones such as Cereus pedunculatus, Mesacmaea mitchellii and Aurelia...
SS.SSa.CFiSa.ApriBatPo Abra prismatica, Bathyporeia elegans and polychaetes in circalittoral fine sand
Published date 2015-03In circalittoral and offshore medium to fine sands between 25 m and 100 m a community characterised by the bivalve Abra prismatica, the amphipod Bathyporeia elegans and polychaetes such as Scoloplos a...
IR.MIR.KT Kelp and seaweed communities in tide-swept sheltered conditions
Published date 2015-03Sheltered infralittoral rock exposed to strong tidal streams. In the sublittoral fringe dense Laminaria digitata is found together with erect seaweeds, sponges, ascidians and bryozoans (LdigT). Below ...