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National Site Network data update: April 2026
Published date 2026-04-24The data JNCC maintains regarding the UK’s national site network of Special Protection Areas (SPAs) and Special Areas of Conservation (SACs) has been updated (April 2026). Protected areas form an imp...
Geikie Slide and Hebridean Slope MPA
Published date 2025-12-31Geikie Slide and Hebridean Slope MPA Video Site The Geikie Slide and Hebridean Slope MPA is located to the north-west of Scotland and follows the descent of the seabed from the Hebridean continental s...
Assessing Indicators
Published date 2025-12-31Summary: assessment of change across all indicators Assessment methods Each indicator is composed of one or more measures which will show trends over time. Many indicators have only a single measure, ...
UKBI - Spring Index
Published date 2025-12-31Spring Index Assessment of change We are working with the Woodland Trust and hope to publish an assessment of change for this indicator in 2026, see the Development Plan for more information. Key resu...
LS.LSa.St.Tal Talitrids on the upper shore and strand-line
Published date 2015-03A community of sandhoppers (talitrid amphipods) may occur on any shore where driftlines of decomposing seaweed and other debris accumulate on the strandline. The biotope occurs most frequently on medi...
IR.HIR.KFaR.FoR Foliose red seaweeds on exposed lower infralittoral rock
Published date 2015-03A 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...
SS.SSa.CFiSa Circalittoral fine sand
Published date 2015-03Clean 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...
IR.FIR.SG.CrSpAsDenB Crustose sponges and colonial ascidians with Dendrodoa grossularia or barnacles on wave-surged infralittoral rock
Published date 2015-03Vertical 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...
SS Sublittoral sediment
Published date 2015-03Sediment 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...
LS.LMu Littoral mud
Published date 2015-03Shores 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). ...