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IR.HIR.KFaR.FoR Foliose red seaweeds on exposed lower infralittoral rock

Published date 2015-03

A dense turf of foliose red seaweeds on exposed or moderately exposed lower infralittoral rock, generally, at or below the lower limit of the kelp. Most of the red seaweeds are common to the kelp zone...


IR.FIR.SG.CrSpAsDenB Crustose sponges and colonial ascidians with Dendrodoa grossularia or barnacles on wave-surged infralittoral rock

Published date 2015-03

Vertical and overhanging, exposed to moderately exposed bedrock gullies, tunnels and cave entrances subject to wave surge, and dominated by the crustose sponges Halichondria panicea, Myxilla incrustan...


LR.FLR.Rkp.SwSed Seaweeds in sediment-floored eulittoral rockpools

Published date 2015-03

Rockpools with sediment (mud, sand, gravel) floors support distinct communities of scour-tolerant seaweeds. Deep pools with sediment are similar to FK, and are typically dominated by fucoids and kelp ...


IR.FIR.SG.CrSpAsAn Anemones, including Corynactis viridis, crustose sponges and colonial ascidians on very exposed or wave surged vertical infralittoral rock

Published date 2015-03

Vertical very exposed and exposed bedrock gullies, tunnels and cave entrances subject to wave-surge dominated by sponge crusts such as Clathrina coriacea, Myxilla incrustans, Pachymatisma johnstonia a...


IR.MIR.KT.LdigT Laminaria digitata, ascidians and bryozoans on tide-swept sublittoral fringe rock

Published date 2015-03

Sheltered bedrock, boulders and cobbles that are subject to moderate to strong tidal water movement characterised by dense Laminaria digitata, coralline crusts and sponges such as Halichondria panicea...


SS.SSa.CFiSa Circalittoral fine sand

Published date 2015-03

Clean fine sands with less than 5% silt/clay in deeper water, either on the open coast or in tide-swept channels of marine inlets in depths of over 15-20 m. The habitat may also extend offshore and is...


SS.SMu.CFiMu Circalittoral fine mud

Published date 2015-03

Sublittoral muds, occurring below moderate depths of 15-20 m, either on the open coast or in marine inlets such as sea lochs. The seapens Virgularia mirabilis and Pennatula phosphorea are characterist...


SS.SMu.ISaMu.Cap Capitella capitata in enriched sublittoral muddy sediments

Published date 2015-03

The polychaete Capitella capitata (agg.) a widely occurring opportunist species complex that is particularly associated with organically enriched and polluted sediments (Warren 1977; Pearson & Rosenbe...


LS.LMu Littoral mud

Published date 2015-03

Shores of fine particulate 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). ...


SS Sublittoral sediment

Published date 2015-03

Sediment habitats in the sublittoral near shore zone (i.e. covering the infralittoral and circalittoral zones), typically extending from the extreme lower shore down to the edge of the bathyal zone (2...



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