2193 page results
LR.FLR.Rkp Rockpools
Published date 2015-03Rockpools occur where the topography of the shore allows seawater to be retained within depressions in the bedrock producing 'pools' on the retreat of the tide. As these rockpool communities are perma...
LS.LBR Littoral biogenic reefs
Published date 2015-03The Littoral Biogenic Reefs habitat complex contains two biotope complexes (littoral Sabellaria reefs, and mixed sediment shores with mussels), encompassing the littoral biotope dominated by the honey...
CR.HCR.DpSp Deep sponge communities (circalittoral)
Published date 2015-03This biotope complex typically occurs on deep (commonly below 30m depth), wave-exposed circalittoral rock subject to negligible tidal streams. The sponge component of this biotope is the most striking...
LR.FLR.Rkp.G Green seaweeds (Ulva spp. and Cladophora spp.) in shallow upper shore rockpools
Published date 2015-03Rockpools in the littoral fringe or upper eulittoral zone subject to widely fluctuating temperatures and salinity are characterised by ephemeral green alga of the genus Ulva, along with Cladophora spp...
SS.SMx.SMxVS Sublittoral mixed sediment in variable salinity (estuaries)
Published date 2015-03Shallow 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...
SS.SMp.Mrl.Pcal Phymatolithon calcareum maerl beds in infralittoral clean gravel or coarse sand
Published date 2015-03Maerl beds characterised by Phymatolithon calcareum in gravels and sands. Associated epiphytes may include algae such as Dictyota dichotoma, Halarachnion ligulatum, Metacallophyllis laciniata, Cryptop...
SS.SSa.IFiSa.IMoSa Infralittoral mobile clean sand with sparse fauna
Published date 2015-03Medium to fine sandy sediment in shallow water, often formed into dunes, on exposed or tide-swept coasts often contains very little infauna due to the mobility of the substratum. Some opportunistic po...
LS.LMu.MEst.HedMacScr Hediste diversicolor, Macoma balthica and Scrobicularia plana in littoral sandy mud
Published date 2015-03Mainly mid shore mud or sandy mud subject to variable salinity on sheltered estuarine shores. Typically, the sediment is wet in appearance and has an anoxic layer below 1 cm depth. The surface of the ...
LS.LMx.GvMu.HedMx.Mac Hediste diversicolor and Macoma balthica in littoral gravelly mud
Published date 2015-03Sheltered 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 ...
SS.SBR.SMus.ModHAs Modiolus modiolus beds with fine hydroids and large solitary ascidians on very sheltered circalittoral mixed substrata
Published date 2015-03Beds or scattered clumps of Modiolus modiolus in generally sheltered conditions with only slight tidal movement. Typically occurs in sea lochs and the Shetland voes. Brittlestars Ophiothrix fragilis a...