Description of biotope or habitat type
Dallina septigera and Macandrevia cranium assemblage on Atlantic upper bathyal rock and other hard substrata
Physical habitat description
|Salinity||Full (30-35 ppt)|
|Substratum||Rock and other hard substrata - bedrock and mixed hard substrates|
|Zone||Atlantic upper bathyal|
|Depth Band||Biotope depth range 200 - 600 m (based on zone); assemblage recorded from 200 - 1134 m|
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- 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
Biotope dominated by the brachiopods Dallina septigera and Macandrevia cranium. Brachiopod dominated assemblages have been observed from multiple locations with the UK deep-sea occuring on bedrock, bedrock with a sand veneer and mixed substrates. Previous observations have been made in the high current areas on the Wyville-Thomson Ridge and summit of the Anton-Dohrn Seamount, but also on Hatton Bank, Rosemary Bank Seamount, Dangaard and Explorer Canyons and the warm shallow regions of the Wyville-Thomson Ridge and Faroe-Shetland Channel. This assemblage was also identified in the mid bathyal, but the associated species are likely to differ. Characterising species listed refer to all Dallina septigera and Macandrevia cranium assemblages not just those found associated with the zone and substrate specified in this biotope.
No situation data available.
No temporal variation data available.
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