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SS.SMx.IMx Infralittoral mixed sediment

Published date 2015-03

Shallow mixed (heterogeneous) sediments in fully marine or near fully marine conditions, supporting various animal-dominated communities, with relatively low proportions of seaweeds. This habitat may ...


SS.SMx.SMxVS Sublittoral mixed sediment in variable salinity (estuaries)

Published date 2015-03

Shallow sublittoral mixed sediments in estuarine conditions, often with surface shells or stones, enabling the development of diverse epifaunal communities, e.g. Crepidula fornicata (SS.SMx.SMxVS.CreM...


CR.LCR.BrAs.NovPro Novocrania anomala and Protanthea simplex on sheltered circalittoral rock

Published date 2015-03

This biotope typically occurs in full to variable salinity conditions on very wave-sheltered circalittoral bedrock and boulder slopes subject to negligible tidal streams (this tends to be in the landw...


LS.LMx.GvMu.HedMx Hediste diversicolor in littoral gravelly muddy sand and gravelly sandy mud

Published date 2015-03

Sheltered gravelly sandy mud, subject to reduced salinity, mainly on the mid and lower shore. The infaunal community is dominated by abundant ragworms Hediste diversicolor. Other species of the infaun...


IR.MIR.KR.XFoR Dense foliose red seaweeds on silty moderately exposed infralittoral rock

Published date 2015-03

Upward-facing surfaces of shallow, infralittoral bedrock and boulders in areas of turbid water dominated by dense red seaweeds, with the notable absence of kelp. The stable rock, which can be cobbles ...


LS.LMu.MEst Polychaete/bivalve-dominated mid estuarine mud shores

Published date 2015-03

Mid estuarine shores of fine sediment, mostly in the silt and clay fraction (particle size less than 0.063 mm in diameter), though sandy mud may contain up to 40% sand (mostly very fine and fine sand)...


LS.LMx.GvMu.HedMx.Mac Hediste diversicolor and Macoma balthica in littoral gravelly mud

Published date 2015-03

Sheltered gravelly mud shores, subject to reduced salinity. The infaunal community consists of the ragworm Hediste diversicolor, as well as the spire shell Peringia ulvae and the baltic tellin Macoma ...


M.AtMA Atlantic mid abyssal

Published date 2015-03

Atlantic waters are warm (typically >8°C within the UK) and Atlantic seabed habitats occur around most of the UK, excluding depths greater than 300 m in the Faroe-Shetland Channel. The Atlantic mid a...


M.ArUA.Ro Arctic upper abyssal rock and other hard substrata

Published date 2015-03

Rock and other hard substrate has a more diverse epifaunal community as species attach to the hard surface that in turn attract more fauna. Deep-sea rock is generally encrusted in a range of species i...


LS.LMx.GvMu.HedMx.Scr Hediste diversicolor and Scrobicularia plana in littoral gravelly mud

Published date 2015-03

Extremely sheltered gravelly mud on the mid and lower shore, containing little sand with occasional cobbles. The infaunal community includes the ragworm Hediste diversicolor and the peppery furrow she...



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