Concept: Unstratified water column with reduced salinity in the eunishabitats vocabulary

Concept URI	http://eunis.eea.europa.eu/eunishabitats/A7.5
Preferred label	Unstratified water column with reduced salinity
Definition	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.
Notation	A7.5
Status	Valid
Status Modified	2014-01-31
Accepted Date	2014-01-31
Not Accepted Date
Editorial note	Proposed new unit (Galway working group April 2001)
Has broader	A7 (Pelagic water column) in biodiversity/eunishabitats
Has narrower	A7.51 (Euphotic (epipelagic) zone in unstratified reduced salinity water) in biodiversity/eunishabitats A7.52 (Mesopelagic zone in unstratified reduced salinity water) in biodiversity/eunishabitats A7.53 (Bathypelagic zone in unstratified reduced salinity water) in biodiversity/eunishabitats A7.54 (Abyssopelagic zone in unstratified reduced salinity water) in biodiversity/eunishabitats
Has exact match	http://eunis.eea.europa.eu/habitats/2779