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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MA41 : Arctic littoral mixed sediment
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MA42 : Atlantic littoral mixed sediment
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MA43 : Baltic hydrolittoral mixed sediment
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MA44 : Black Sea littoral mixed sediment
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MA45 : Mediterranean littoral mixed sediment
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![Arctic circalittoral rock](images/img_bullet.gif)
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![Balanus crenatus [and] Tubularia indivisa [on extremely tide-swept Atlantic circalittoral rock](images/img_bullet.gif)
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![Corynactis viridis and a mixed turf of crisiids, [Bugula], [Scrupocellaria], and [Cellaria] on moderately tide-swept exposed Atlantic circalittoral rock](images/img_bullet.gif)
![Mixed turf of hydroids and large ascidians with [Swiftia pallida] and [Caryophyllia smithii] on weakly tide-swept Atlantic circalittoral rock](images/img_bullet.gif)
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![Sparse sponges, [Nemertesia] spp., and [Alcyonidium diaphanum] on Atlantic circalittoral mixed substrata](images/img_bullet.gif)
![[Suberites] spp. with a mixed turf of crisiids and [Bugula] spp. on heavily silted moderately wave-exposed Atlantic circalittoral rock](images/img_bullet.gif)
![Flustra foliacea [and] Haliclona oculata [with a rich faunal turf on tide-swept Atlantic circalittoral mixed substrata](images/img_bullet.gif)
![Molgula manhattensis [with a hydroid and bryozoan turf on tide-swept moderately wave-exposed Atlantic circalittoral rock](images/img_bullet.gif)
![Sponges and anemones on Atlantic circalittoral vertical bedrock](images/img_bullet.gif)
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![Piddocks with a sparse associated fauna in Atlantic circalittoral very soft chalk or clay](images/img_bullet.gif)
![Polydora [sp. tubes on moderately exposed Atlantic circalittoral soft rock](images/img_bullet.gif)
![Hiatella[-bored Atlantic circalittoral vertical limestone rock](images/img_bullet.gif)
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![Arctic upper bathyal biogenic habitat](images/img_bullet.gif)
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![Black Sea upper bathyal biogenic habitat](images/img_bullet.gif)
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![Arctic abyssal biogenic habitat](images/img_bullet.gif)
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![Black Sea abyssal biogenic habitat](images/img_bullet.gif)
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