Description of biotope or habitat type
Arctic mid bathyal mixed sediment
Habitat (physical) description
|Salinity||Full (30-35 ppt)|
|Zone||Arctic mid bathyal|
|Depth Band||600 - 1100 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
Deep-sea mixed sediment has not been sampled widely for infauna so little is currently known about infaunal community structure. Epifauna tend to be sparse mobile species. In the absence of ecological data, mixed sediment habitat can be defined according to Long (2006), which describes the classification's broad sediment types according to the relative proportion of mud, sand and gravel (see http://www.emodnet-seabedhabitats.eu/PDF/GMHM3_Detailed_explanation_of_seabed_sediment_classification.pdf). Note that only small amounts of gravel are required to move the habitat from mud to mixed sediment and only small amounts of mud can move the habitat from coarse to mixed sediment. In the absence of particle size data it can be difficult to reliably distinguish between coarse sediment and mixed sediment. Note that stable pebbles, cobbles and boulders are classed as rock; any rock present on mixed sediment is considered a separate habitat within a mosaic.
No situation data available.
No temporal variation data available.
Characterising species data not applicable.
Not applicable or unknown.