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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MH61 : Arctic vertically stratified water column with reduced salinity
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MH62 : Atlantic vertically stratified water column with reduced salinity
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MH63 : Baltic vertically stratified water column with reduced salinity
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MH64 : Black Sea vertically stratified water column with reduced salinity
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MH65 : Mediterranean vertically stratified water column with reduced salinity
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MH651 : Mediterranean water column with ephemeral thermal stratification and reduced salinity
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MH652 : Mediterranean water column with seasonal thermal stratification and reduced salinity
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MH653 : Mediterranean water column with permanent thermal stratification and reduced salinity
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MH654 : Mediterranean water column with ephemeral halocline and reduced salinity
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MH655 : Mediterranean water column with seasonal halocline and reduced salinity
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MH656 : Mediterranean water column with permanent halocline and reduced salinity
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MH657 : Mediterranean water column with ephemeral oxygen stratification and reduced salinity
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MH658 : Mediterranean water column with seasonal oxygen stratification and reduced salinity
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MH659 : Mediterranean water column with permanent oxygen stratification and reduced salinity
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![Baltic under-ice habitat](images/img_bullet.gif)
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![Pannonian and Pontic sandy steppe](images/img_bullet.gif)
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![Perennial rocky grassland of the Italian Peninsula](images/img_bullet.gif)
![Continental dry rocky steppic grassland and dwarf scrub on chalk outcrops](images/img_bullet.gif)
![Perennial rocky grassland of Central and South-Eastern Europe](images/img_bullet.gif)
![Heavy-metal dry grassland of the Balkans](images/img_bullet.gif)
![Perennial rocky calcareous grassland of subatlantic-submediterranean Europe](images/img_bullet.gif)
![Dry steppic submediterranean pasture of the Amphi-Adriatic region](images/img_bullet.gif)
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![Desert steppe](images/img_bullet.gif)
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![Cyrno-Sardean oromediterranean siliceous dry grassland](images/img_bullet.gif)
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![Madeiran oromediterranean siliceous dry grassland](images/img_bullet.gif)
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![Azorean open, dry, acid to neutral grassland](images/img_bullet.gif)
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![Thermophilous forest fringe of base-rich soils](images/img_bullet.gif)
![Forest fringe of acidic nutrient-poor soils](images/img_bullet.gif)
![Macaronesian thermophilous forest fringe](images/img_bullet.gif)
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![Trampled xeric grasslands with annuals](images/img_bullet.gif)
![Trampled mesophilous grasslands with annuals](images/img_bullet.gif)
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![Weed communities of recently abandoned urban and suburban constructions](images/img_bullet.gif)
![Weed communities of recently abandoned rural constructions](images/img_bullet.gif)
![Weed communities of recently abandoned extractive industrial sites](images/img_bullet.gif)
![Land reclamation forb fields](images/img_bullet.gif)
![Dry perennial anthropogenic herbaceous vegetation](images/img_bullet.gif)
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