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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MA1 : Littoral rock
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MA2 : Littoral biogenic habitat
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MA3 : Littoral coarse sediment
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MA4 : Littoral mixed sediment
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MA5 : Littoral sand
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MA6 : Littoral mud
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MB1 : Infralittoral rock
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MB2 : Infralittoral biogenic habitat
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MB3 : Infralittoral coarse sediment
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MB4 : infralittoral mixed sediment
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MB5 : Infralittoral sand
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MB6 : Infralittoral mud
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MC1 : Circalittoral rock
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MC11 : Arctic circalittoral rock
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MC12 : Atlantic circalittoral rock
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MC13 : Baltic ciralittoral rock
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MC131 : Baltic ciralittoral rock and boulders characterized by sparse epibenthic bivalves
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MC132 : Baltic ciralittoral rock and boulders characterized by epibenthic chordates
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MC133 : Baltic ciralittoral rock and boulders characterized by epibenthic cnidarians
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MC1331 : Baltic ciralittoral rock and boulders dominated hydroids (Hydrozoa)
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MC1332 : Baltic ciralittoral rock and boulders dominated by sea anemones (Actiniarida)
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MC1333 : Baltic ciralittoral rock and boulders dominated by soft corals (Alcyonacea)
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![Baltic ciralittoral rock and boulders characterized by epibenthic sponges](images/img_bullet.gif)
![Baltic ciralittoral rock and boulderscharacterized by mixed epibenthic macrocommunity](images/img_bullet.gif)
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![Baltic ciralittoral hard clay characterized by mixed epibenthic macrocommunity](images/img_bullet.gif)
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![Baltic ciralittoral hard bottoms characterized by marl (marlstone rock)](images/img_bullet.gif)
![Baltic ciralittoral hard bottoms characterized by ferromanganese concretion bottoms](images/img_bullet.gif)
![Baltic circalittoral hard anthropogenically created substrates](images/img_bullet.gif)
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![Black Sea upper bathyal rock](images/img_bullet.gif)
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![Arctic abyssal mixed sediment](images/img_bullet.gif)
![Atlantic abyssal mixed sediment](images/img_bullet.gif)
![Black Sea abyssal mixed sediment](images/img_bullet.gif)
![Mediterranean abyssal mixed sediment](images/img_bullet.gif)
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![Mediterranean completely mixed water column with reduced salinity and short residence time](images/img_bullet.gif)
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![Mediterranean completely mixed water column with reduced salinity and long residence time](images/img_bullet.gif)
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![Arctic water column with ephemeral thermal stratification and full salinity](images/img_bullet.gif)
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![Arctic water column with ephemeral halocline and full salinity](images/img_bullet.gif)
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![Arctic water column with ephemeral oxygen stratification and full salinity](images/img_bullet.gif)
![Arctic water column with seasonal oxygen stratification and full salinity](images/img_bullet.gif)
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