Description of biotope or habitat type
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Sublittoral sands and muddy sands
Physical habitat description
|Salinity||Full (30-35 ppt), Reduced (18-30ppt), Variable (18-35 ppt)|
|Wave exposure||Moderately exposed, Sheltered, Very sheltered|
|Tidal streams||Moderately strong (1-3 kn), Weak (>1 kn), Very weak (negligible)|
|Substratum||Medium to fine sands and muddy sands.|
|Depth Band||0-5 m, 5-10 m, 10-20 m, 20-30 m, 30-50 m|
|Derived using data from||Various|
Download comparative physical and biological data. The comparative tables enable a rapid comparison of the species composition and principal physical characteristics between a given set of biotopes.
- Records used to define the biotope (core records)
- Other records assigned to this biotope, marked as 'certain'
- Other records assigned to this biotope, marked as 'uncertain'
- Predicted extent of the level 3 (for sublittoral rock & deep sea) or 4 (for sublittoral sediment) habitat
Point data based on records in the UK Marine Recorder Snapshot. Predicted habitat extent is from UKSeaMap.
Clean medium to fine sands or non-cohesive slightly muddy sands on open coasts, offshore or in estuaries and marine inlets. Such habitats are often subject to a degree of wave action or tidal currents which restrict the silt and clay content to less than 15%. This habitat is characterised by a range of taxa including polychaetes, bivalve molluscs and amphipod crustacea.
No situation data available.
No temporal data available.
Characterising species data not applicable.
Similar biotopes or habitat types
Not applicable or unknown.
Classification history of this biotope or habitat type
|Classification version||Code||Habitat name|
|2015 (15.03)||SS.SSa||Sublittoral sands and muddy sands|
|2004 (04.05)||SS.SSa||Sublittoral sands and muddy sands|
|1997 (97.06)||SS.CMS (part)||Circalittoral muddy sands|
|1997 (97.06)||SS.IMS (part)||Infralittoral muddy sand|
|1997 (97.06)||SS.Part of IGS||Infralittoral gravels and sands|