EUNIS habitat type hierarchical view (marine version 2022 & terrestrial version 2021)
The EUNIS habitat classification review is on-going. Four groups are pending review: Inland waters, Wetlands, Constructed, industrial and other artificial habitats and Complexes.-
M : Marine benthic habitats (MA-MG)
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MH : Pelagic water column
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MH1 : Neuston
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MH2 : Completely mixed water column with reduced salinity
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MH3 : Completely mixed water column with full salinity
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MH4 : Partially mixed water column with reduced salinity and medium or long residence time
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MH41 : Arctic partially mixed water column with reduced salinity and medium or long residence time
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MH42 : Atlantic partially mixed water column with reduced salinity and medium or long residence time
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MH43 : Baltic partially mixed water column with reduced salinity and medium or long residence time
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MH44 : Black Sea partially mixed water column with reduced salinity and medium or long residence time
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MH45 : Mediterranean partially mixed water column with reduced salinity and medium or long residence time
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![Black Sea water column with ephemeral thermal stratification and reduced salinity](images/img_bullet.gif)
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![Black Sea water column with ephemeral halocline and reduced salinity](images/img_bullet.gif)
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![Black Sea water column with ephemeral oxygen stratification and reduced salinity](images/img_bullet.gif)
![Black Sea water column with seasonal oxygen stratification and reduced salinity](images/img_bullet.gif)
![Black Sea water column with permanent oxygen stratification and reduced salinity](images/img_bullet.gif)
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![Pyrenean birch forests](images/img_bullet.gif)
![Apennine birch forests](images/img_bullet.gif)
![Sub-Mediterranean [Populus tremula] stands](images/img_bullet.gif)
![Corsican [Betula] forests](images/img_bullet.gif)
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![Mount Etna [Betula] stands](images/img_bullet.gif)
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![[Alnus cordata] forest](images/img_bullet.gif)
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