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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MB11 : Arctic infralittoral rock
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MB12 : Atlantic infralittoral rock
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MB121 : Kelp and seaweed communities on Atlantic infralittoral rock
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MB122 : Seaweed or faunal communities on Atlantic infralittoral rock
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MB1221 : Foliose red seaweeds on exposed lower Atlantic infralittoral rock
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MB1222 : Turf of articulated Corallinaceae on exposed to sheltered Atlantic infralittoral bedrock and boulders
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MB1223 : Cystoseira spp. on exposed Atlantic infralittoral bedrock and boulders
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MB1224 : Encrusting algal communities on exposed Atlantic infralittoral rock
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MB1225 : Seaweed communities on Atlantic infralittoral artificial hard substrate
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![Saccorhiza polyschides [and other opportunistic kelps on disturbed Atlantic upper infralittoral rock](images/img_bullet.gif)
![Laminaria saccharina [and/or] Saccorhiza polyschides [on exposed Atlantic infralittoral rock](images/img_bullet.gif)
![Laminaria saccharina, Chorda filum [and dense red seaweeds on shallow unstable Atlantic infralittoral boulders and cobbles](images/img_bullet.gif)
![Dense [Desmarestia] spp. with filamentous red seaweeds on exposed Atlantic infralittoral cobbles, pebbles and bedrock](images/img_bullet.gif)
![Mixed kelps with scour-tolerant and opportunistic foliose red seaweeds on scoured or sand-covered Atlantic infralittoral rock](images/img_bullet.gif)
![Halidrys siliquosa [and mixed kelps on tide-swept Atlantic infralittoral rock with coarse sediment](images/img_bullet.gif)
![Polyides rotundus, Ahnfeltia plicata [and] Chondrus crispus [on sand-covered Atlantic infralittoral rock](images/img_bullet.gif)
![Mixed [Laminaria hyperborea] and [Laminaria ochroleuca] forest on moderately exposed or sheltered Atlantic infralittoral rock](images/img_bullet.gif)
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![Silted cape-form [Laminaria hyperborea] on very sheltered Atlantic infralittoral rock](images/img_bullet.gif)
![Sargassum muticum [on shallow slightly tide-swept Atlantic infralittoral mixed substrata](images/img_bullet.gif)
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![Freshwater seeps in Atlantic infralittoral rock](images/img_bullet.gif)
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![Vents in Atlantic infralittoral rock](images/img_bullet.gif)
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