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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MH5 : Unstratified water column with reduced salinity
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MH6 : Vertically stratified water column with reduced salinity
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MH7 : Fronts in reduced salinity water column
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MH8 : Unstratified water column with full salinity
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MH9 : Vertically stratified water column with full salinity
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MH91 : Arctic vertically stratified water column with full salinity
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MH92 : Atlantic vertically stratified water column with full salinity
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MH921 : Atlantic water column with ephemeral thermal stratification and full salinity
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MH922 : Atlantic water column with seasonal thermal stratification and full salinity
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MH923 : Atlantic water column with permanent thermal stratification and full salinity
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MH924 : Atlantic water column with ephemeral halocline and full salinity
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MH925 : Atlantic water column with seasonal halocline and full salinity
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MH926 : Atlantic water column with permanent halocline and full salinity
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MH927 : Atlantic water column with ephemeral oxygen stratification and full salinity
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MH928 : Atlantic water column with seasonal oxygen stratification and full salinity
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MH929 : Atlantic water column with permanent oxygen stratification and full salinity
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![Mediterranean water column with ephemeral thermal stratification and full salinity](images/img_bullet.gif)
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