2295 page results
Natural dystrophic lakes and ponds
Published dateFreshwater habitats Description and ecological characteristics Dystrophic systems most often occur on 7130 Blanket bogs and may include isolated seasonal pools, random collections of irregularly-shape...
Siliceous rocky slopes with chasmophytic vegetation
Published dateRocky habitats and caves Description and ecological characteristics Chasmophytic vegetation consists of plant communities that colonise the cracks and fissures of rock faces. The type of plant communi...
Annual vegetation of drift lines
Published dateMarine, coastal and halophytic habitats Description and ecological characteristics This habitat type occurs on deposits of shingle lying at or above mean high-water spring tides. The types of deposits...
LR.LLR.FVS.FserVS Fucus serratus and large Mytilus edulis on variable salinity lower eulittoral rock
Published date 2015-03Areas of very sheltered lower eulittoral rock or mixed substrata subject to variable salinity, which support an impoverished community dominated by the wrack Fucus serratus. The hydroid Dynamena pumil...
SS.SSa.CMuSa.AalbNuc Abra alba and Nucula nitidosa in circalittoral muddy sand or slightly mixed sediment
Published date 2015-03Non-cohesive muddy sands or slightly shelly/gravelly muddy sand characterised by the bivalves Abra alba and Nucula nitidosa. Other important taxa include Nephtys spp., Chaetozone setosa and Spiophanes...
LR.FLR.Eph.Ulv Ulva spp. on freshwater-influenced and/or unstable upper eulittoral rock
Published date 2015-03Upper shore hard substratum that is relatively unstable (e.g. soft rock) or subject to considerable freshwater runoff is typically very species poor and characterised by a dense mat of Ulva spp., thou...
IR.MIR.KT.XKT Mixed kelp with foliose red seaweeds, sponges and ascidians on sheltered tide-swept infralittoral rock
Published date 2015-03Stable, tide-swept rock characterised by dense kelp Laminaria hyperborea and/or Saccharina latissima forest on scoured, coralline-encrusted rock. This biotope occurs in the sheltered narrows and sills...
LR.FLR.CvOv.ChrHap Chrysophyceae and Haptophyceae on vertical upper littoral fringe soft rock
Published date 2015-03Orange, brownish or blackish gelatinous bands of algae at high tide and supralittoral levels on open cliff faces and on upper walls and ceilings at entrances and to the rear of upper and mid-shore har...
LR.FLR.Lic.Bli Blidingia spp. on vertical littoral fringe soft rock
Published date 2015-03Vertical soft rock in the littoral fringe may be characterised by a band of the green seaweeds Blidingia minima and Blidingia marginata. Unbranched filamentous green seaweeds, including Ulothrix flacc...
SS.SSa.IFiSa.ScupHyd Sertularia cupressina and Hydrallmania falcata on tide-swept sublittoral sand with cobbles or pebbles.
Published date 2015-03Shallow sands with cobbles and pebbles, exposed to strong tidal streams, with conspicuous colonies of hydroids, particularly Hydrallmania falcata and to a lesser extent Sertularia cupressina and S. ar...