Description of biotope or habitat type
Sublittoral coarse sediment (unstable cobbles and pebbles, gravels and coarse sands)
Habitat (physical) description
|Salinity||Full (30-35 ppt), Variable (18-35 ppt)|
|Wave exposure||Exposed, Moderately exposed, Sheltered|
|Tidal streams||Strong (3-6 kn), Moderately strong (1-3 kn), Weak (>1 kn), Very weak (negligible)|
|Substratum||Cobbles and pebbles, gravels and coarse sands.|
|Depth Band||0-5 m, 5-10 m, 10-20 m, 20-30 m|
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
Coarse sediments including coarse sand, gravel, pebbles, shingle and cobbles which are often unstable due to tidal currents and/or wave action. These habitats are generally found on the open coast or in tide-swept channels of marine inlets. They typically have a low silt content and a lack of a significant seaweed component. They are characterised by a robust fauna including venerid bivalves.
No situation data available.
No temporal data available.
Characterising species data not applicable.
Not applicable or unknown.
|97.06||CGS in part|
|97.06||IGS in part|