EUNIS habitat classification 2012 > A - Marine habitats > A6 - Deep-sea bed > A6.9 - Vents, seeps, hypoxic and anoxic habitats of the deep sea

Vents, seeps, hypoxic and anoxic habitats of the deep sea

English name: Vents, seeps, hypoxic and anoxic habitats of the deep sea

Description (English)

Deep-sea habitats characterised by chemical conditions. Includes interface habitats on the deep-sea bed where reducing conditions exist (A6.91), not generally associated with drastically elevated temperatures, including the carcasses of large cetaceans (A6.913). These habitats are often indicated by the presence of seeping or bubbling gases or liquids, hypoxic and/or anoxic conditions in the water column above. Also includes vents in the deep-sea bed (A6.94).

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code A6.9

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

Not available

Other classifications

Classification Code Habitat type name Relationship type
Palaearctic Habitat Classification 200112 11.215 Hydrothermal benthic communities narrower
CORINE Land Cover 5.2.3. Sea and ocean n/a
For relation to plant communities (syntaxa), see Vegetation types

History

Classification Code Habitat type name Relationship type
EUNIS Habitat Classification 200410 A6.9 Vents, seeps, hypoxic and anoxic habitats of the deep sea same
EUNIS Habitat Classification 200308 A6.5 Vents in the deep sea narrower
EUNIS Habitat Classification 200308 A5.9 Deep-sea reducing habitats narrower
EUNIS Habitat Classification 200308 A6.4 Isolated ‘oceanic’ features influenced by hypoxic water column narrower
EUNIS Habitat Classification 200308 A5.A Deep-sea bed influenced by hypoxic water column narrower
EUNIS Habitat Classification 200202 A6.5 Vents in the deep sea narrower
EUNIS Habitat Classification 200202 A5.9 Deep-sea reducing habitats narrower
EUNIS Habitat Classification 200202 A6.4 Isolated ‘oceanic’ features influenced by hypoxic water column narrower
EUNIS Habitat Classification 200202 A5.A Deep-sea bed influenced by hypoxic water column narrower
EUNIS Habitat Classification 199910 A6.8 Anoxic deep seabed habitats below anoxic water narrower
EUNIS Habitat Classification 199910 A6.31 Oceanic ridge with hydrothermal effects narrower
EUNIS Habitat Classification 199811 A5.71 Oceanic ridge with hydrothermal effects narrower
EUNIS Habitat Classification 199811 A5.5 Anoxic deep seabed habitats below anoxic water narrower
EUNIS Habitat Classification 199712 A7.11 Oceanic ridge with hydrothermal effects narrower
Palaearctic Habitat Classification 199905 11.215 Hydrothermal benthic communities narrower
Palaearctic Habitat Classification 1997 11.215 Hydrothermal benthic communities narrower
Palaearctic Habitat Classification 1996 11.215   narrower
Palaearctic Habitat Classification 1993 11.215   narrower
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