Description of biotope or habitat type
Thaumatocrinus jungerseni assemblage on Atlantic mid abyssal mud
Habitat (physical) description
|Salinity||Full (30-35 ppt)|
|Substratum||Mud - silt or pelagic ooze|
|Zone||Atlantic mid abyssal|
|Depth Band||Biotope depth range 3100 - 4100 m (based on zone); assemblage recorded from 3580 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
Hughes and Gage (2004) describe this biotope from the mouth of Rockall Trough at 3580m dominated by the comatulid crinoid Thaumatocrinus jungerseni on fine silt or pelagic ooze. It is possible that this site experiences increased current speeds as a result of the constriction of the topography in this area, making it favourable to suspension feeding organisms such as crinoids. This assemblage may therefore be a variation on the Psychropotes longicauda and Oneirophanta mutabilis assemblage. This assemblage was described based on literature only.
No situation data available.
No temporal variation data available.
Not applicable or unknown.