EUNIS habitat classification 2012 > A - Marine habitats > A7 - Pelagic water column > A7.6 - Vertically stratified water column with reduced salinity

Vertically stratified water column with reduced salinity

English name: Vertically stratified water column with reduced salinity

Description (English)

A water column which is unmixed or only partially mixed because the depth of the water body is greater than the depth of mixing, and with short residence time, defined as changing diurnally. Salinity is reduced relative to the adjacent fully marine seawater. This habitat type is usually found in deeper coastal water situations and is the result of river inflow or ice melt. Note that some discretion should be used in the interpretation of “adjacent”, for example in the Baltic Sea, “adjacent” fully marine seawater is reached only in the Kattegat. This habitat type shows pronounced vertical stratification (e.g. caused by seasonal temperature changes, river discharge influence or ice-melt). The subtypes are separated at level 4 by the cause and degree of persistence of the gradient – e.g. seasonal temperature gradients or persistent salinity gradients.

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code A7.6

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
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 A7.6 Vertically stratified water column with reduced salinity same
EUNIS Habitat Classification 200308 A7.6 Vertically stratified water column with reduced salinity same
EUNIS Habitat Classification 200202 A7.6 Vertically stratified water column with reduced salinity same
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