Description of biotope or habitat type
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Silted kelp communities (sheltered infralittoral rock)
Physical habitat description
Salinity | Full (30-35 ppt), Variable (18-35 ppt) |
---|---|
Wave exposure | Sheltered, Very sheltered, Extremely sheltered |
Tidal streams | Moderately strong (1-3 kn), Weak (>1 kn), Very weak (negligible) |
Substratum | Bedrock, boulders, cobbles and mixed substrata |
Zone | Infralittoral, Sublittoral fringe |
Depth Band | 0-5 m, 5-10 m, 10-20 m |
Other Features |
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.
Description
Infralittoral rock in wave and tide-sheltered conditions, supporting silty communities with Laminaria hyperborea and/or Saccharina latissima. Associated seaweeds are typically silt-tolerant and include a high proportion of delicate filamentous types. Some areas, particularly in the lower infralittoral zone, are subject to intense grazing by urchins and chitons and may have poorly developed seaweed communities.
Situation
No situation data available.
Temporal variation
No temporal variation data available.
Characterising species
Characterising species data not applicable.
Similar biotopes or habitat types
Not applicable or unknown.