EUNIS habitat classification 2017 > M - Marine benthic habitats > MG6 - Abyssal mud > MG62 - Atlantic abyssal mud > MG621 - Sparse communities on Atlantic abyssal mud > MG6211 - Hygrosoma petersii, Benthothuria funebris and Oneirophanta assemblage on Atlantic abyssal mud

Hygrosoma petersii, Benthothuria funebris and Oneirophanta assemblage on Atlantic abyssal mud

Description (English)

This biotope consists of assemblages dominated by holothurians Benthothuria funebris and Oneirophanta with echinoderm Hygrosoma petersiion mud. Gage (1986) describes this assemblage from his deepest station in the southern Rockall Trough at 2900m on pelagic ooze. No other detail are available on this assemblage and it is possible that it may represent a transitional assemblage between the Acanella arbuscula assemblage (found shallower) and the abyssal Psychropotes longicauda and Oneirophanta mutabilis assemblage found deeper. This assemblage has been described based on literature only.

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code MG6211

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

Invertebrates Acanella arbuscula
Invertebrates Benthothuria funebris
Invertebrates Hygrosoma petersii
Invertebrates Oneirophanta mutabilis
Invertebrates Psychropotes longicauda
Species scientific name English common name Species group
Acanella arbuscula Invertebrates
Benthothuria funebris Invertebrates
Hygrosoma petersii Invertebrates
Oneirophanta mutabilis Invertebrates
Psychropotes longicauda Invertebrates

Other classifications

Classification Code Habitat type name Relationship type
EUNIS Habitat Classification 2007 (revised descriptions 2012) A6.5 Deep-sea mud narrower
For relation to plant communities (syntaxa), see Vegetation types

History

Classification Code Habitat type name Relationship type Comment
EUNIS Habitat Classification 200410 A6.5 Deep-sea mud same
EUNIS Habitat Classification 200308 A5.5 Deep-sea muds same
EUNIS Habitat Classification 200202 A5.5 Deep-sea muds same
EUNIS Habitat Classification 199910 A5.5 Bathyal zone mud same
EUNIS Habitat Classification 199811 A5.3 Bathyal zone mud (continental slope floor) same
Palaearctic Habitat Classification 199905 11.211 Bathyal benthic communities wider
Palaearctic Habitat Classification 1997 11.211 Bathyal benthic communities wider
Palaearctic Habitat Classification 1996 11.211   wider
Palaearctic Habitat Classification 1993 11.211   wider
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