Description of biotope or habitat type
To understand more about what this page is describing, see How to use the classification. See also How to cite.
Heliometra glacialis, Actinostolid anemones and tube worm assemblage on Arctic mid bathyal rock and other hard substrata
Physical habitat description
| Salinity | Full (30-35 ppt) |
|---|---|
| Wave exposure | |
| Tidal streams | |
| Substratum | Rock and other hard substrata - cobbles and boulders |
| Zone | Arctic mid bathyal |
| Depth Band | Biotope depth range 600 - 1100 m (based on zone); assemblage recorded from 799 - 903 m; mean 875 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
This biotope has been recorded on a cobble and boulder matrix at the base of the Wyville Thomson Ridge in cold Arctic waters. Conspicuous fauna are the Actinostolid anemones, the crinoid Heliometra glacialis, and sabellid tube worms.
Situation
No situation data available.
Temporal variation
No temporal variation data available.
Characterising species
| Taxon | % of core records where taxon was recorded |
|---|---|
| Actinostolidae | |
| Anthozoa | |
| Crossaster papposus | |
| Gersemia | |
| Heliometra glacialis | |
| Ophiuroidea | |
| Sabellidae | |
| Serpulidae | |
| Tubularia |
Similar biotopes or habitat types
