Under-ice habitat

Description (English)

The boundary layer between sea ice and the water column with special abiotic (e.g. temperature, salinity) and biotic (e.g. food resources) factors, which also vary with season and region. This habitat is colonized by autochthonous under-ice amphipods (Apherusa glacialis, Onisimus spp., Gammarus wilkitzkii), which live directly at the ice underside and complete their entire life-cycle here, and allochthonous sub-ice fauna, organisms originating either from the ice interior or the pelagic realm, which are found in this boundary layer temporarily, e.g. for feeding or during certain life stages.

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code MJ4

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

Invertebrates Apherusa glacialis
Invertebrates Gammarus wilkitzkii
Species scientific name English common name Species group
Apherusa glacialis Invertebrates
Gammarus wilkitzkii Invertebrates

Other classifications

Classification Code Habitat type name Relationship type
EUNIS Habitat Classification 2007 (revised descriptions 2012) A8.4 Under-ice habitat same
For relation to plant communities (syntaxa), see Vegetation types

History

Classification Code Habitat type name Relationship type Comment
EUNIS Habitat Classification 200410 A8.4 Under-ice habitat same
EUNIS Habitat Classification 200308 A8.4 Under-ice habitat same
EUNIS Habitat Classification 200202 A8.4 Under-ice habitat same
European Environment Agency (EEA)
Kongens Nytorv 6
1050 Copenhagen K
Denmark
Phone: +45 3336 7100