Unstratified 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. Unstratified water columns have very weak or no horizontal or vertical gradients.
Source: EUNIS habitat classification
Quick facts
EUNIS habitat type | code A7.5 |
---|---|
Relation to | Annex I habitat types (EU Habitats Directive) |
Legal status
Relation to other habitat types mentioned in legal instruments
Vegetation types
Relation to vegetation types (syntaxa)
Not availableSpecies mentioned in habitat description
Other classifications
Classification | Code | Habitat type name | Relationship type |
---|---|---|---|
CORINE Land Cover | 5.2.3. | Sea and ocean | n/a |
History
Classification | Code | Habitat type name | Relationship type |
---|---|---|---|
EUNIS Habitat Classification 200410 | A7.5 | Unstratified water column with reduced salinity | same |
EUNIS Habitat Classification 200308 | A7.5 | Unstratified water column with reduced salinity | same |
EUNIS Habitat Classification 200202 | A7.5 | Unstratified water column with reduced salinity | same |