Atlantic abyssal mixed sediment
Description (English)
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 p3 of UKSeaMap 2010 technical report 3 http://jncc.defra.gov.uk/pdf/UKSeaMap2010_TechnicalReport_3_Substrate2.pdf). It can be difficult to reliably distinguish between coarse sediment and mixed sediment using video data only. Note that mixed sediment has a greater mud content than coarse sediment. If muddy sand sediment contains a high enough percentage of gravel, then it would be classed as mixed sediment. Stable pebbles, cobbles and boulders are classed as rock; any rock present on mixed sediment is considered a separate habitat within a mosaic.
Source: EUNIS habitat classification
Quick facts
| EUNIS habitat type | code MG42 |
|---|
Vegetation types
Relation to vegetation types (syntaxa)
Not availableSpecies mentioned in habitat description
Other classifications
| Classification | Code | Habitat type name | Relationship type |
|---|---|---|---|
| EUNIS Habitat Classification 2007 (revised descriptions 2012) | A6.2 | Deep-sea mixed substrata | narrower |
History
| Classification | Code | Habitat type name | Relationship type | Comment |
|---|---|---|---|---|
| EUNIS Habitat Classification 200410 | A6.2 | Deep-sea mixed substrata | same | |
| EUNIS Habitat Classification 200308 | A5.2 | Deep-sea mixed substrata | same | |
| EUNIS Habitat Classification 200202 | A5.2 | Deep-sea combination substrates | same | |
| EUNIS Habitat Classification 199910 | A5.2 | Bathyal zone mixed substrates | same |
