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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MH431 : Baltic partially mixed water column with reduced salinity and medium residence time
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MH432 : Baltic partially mixed water column with reduced salinity and long residence time
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![Black Seaeuphotic (epipelagic) zone in unstratified reduced salinity water](images/img_bullet.gif)
![Black Sea mesopelagic zone in unstratified reduced salinity water](images/img_bullet.gif)
![Black Sea bathypelagic zone in unstratified reduced salinity water](images/img_bullet.gif)
![Black Sea abyssopelagic zone in unstratified reduced salinity water](images/img_bullet.gif)
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![Atlantic water column with ephemeral thermal stratification and reduced salinity](images/img_bullet.gif)
![Atlantic water column with seasonal thermal stratification and reduced salinity](images/img_bullet.gif)
![Atlantic water column with permanent thermal stratification and reduced salinity](images/img_bullet.gif)
![Atlantic water column with ephemeral halocline and reduced salinity](images/img_bullet.gif)
![Atlantic water column with seasonal halocline and reduced salinity](images/img_bullet.gif)
![Atlantic water column with permanent halocline and reduced salinity](images/img_bullet.gif)
![Atlantic water column with ephemeral oxygen stratification and reduced salinity](images/img_bullet.gif)
![Atlantic water column with seasonal oxygen stratification and reduced salinity](images/img_bullet.gif)
![Atlantic water column with permanent oxygen stratification and reduced salinity](images/img_bullet.gif)
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![Mediterranean water column with ephemeral thermal stratification and reduced salinity](images/img_bullet.gif)
![Mediterranean water column with seasonal thermal stratification and reduced salinity](images/img_bullet.gif)
![Mediterranean water column with permanent thermal stratification and reduced salinity](images/img_bullet.gif)
![Mediterranean water column with ephemeral halocline and reduced salinity](images/img_bullet.gif)
![Mediterranean water column with seasonal halocline and reduced salinity](images/img_bullet.gif)
![Mediterranean water column with permanent halocline and reduced salinity](images/img_bullet.gif)
![Mediterranean water column with ephemeral oxygen stratification and reduced salinity](images/img_bullet.gif)
![Mediterranean water column with seasonal oxygen stratification and reduced salinity](images/img_bullet.gif)
![Mediterranean water column with permanent oxygen stratification and reduced salinity](images/img_bullet.gif)
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![Mediterranean short moist grassland of lowlands](images/img_bullet.gif)
![Mediterranean short moist grassland of mountains](images/img_bullet.gif)
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