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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MA11 : Arctic littoral rock
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MA12 : Atlantic littoral rock
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MA121 : Lichens or small green algae on Atlantic supralittoral and littoral fringe rock
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MA1211 : Yellow and grey lichens on Atlantic supralittoral rock
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MA1212 : Prasiola stipitata on nitrate-enriched supralittoral or littoral fringe rock
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MA1213 : Verrucaria maura on littoral fringe rock
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MA1214 : Blidingia spp. on vertical littoral fringe chalk
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MA1215 : Ulothrix flacca and Urosporaspp. on freshwater-influenced vertical littoral fringe soft rock
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![Fucus distichus [and] Fucus spiralis f. nana [on extremely exposed upper eulittoral rock](images/img_bullet.gif)
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![[Osmundea pinnatifida] on moderately exposed mid eulittoral rock](images/img_bullet.gif)
![[Ceramium] sp. and piddocks on eulittoral fossilised peat](images/img_bullet.gif)
![[Ascophyllum nodosum], sponges and ascidians on tide-swept mid eulittoral rock](images/img_bullet.gif)
![[Fucus serratus], sponges and ascidians on tide-swept lower eulittoral rock](images/img_bullet.gif)
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![Pelvetia canaliculata [on sheltered littoral fringe rock](images/img_bullet.gif)
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![Enteromorpha [spp. on freshwater-influenced and/or unstable upper eulittoral rock](images/img_bullet.gif)
![Porphyra purpurea [or] Enteromorpha [spp. on sand-scoured mid or lower eulittoral rock](images/img_bullet.gif)
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![Baltic hydrolittoral rock and boulders characterized by aquatic moss](images/img_bullet.gif)
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![Baltic hydrolittoral marl (marlstone rock)](images/img_bullet.gif)
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![Arctic littoral mixed sediment](images/img_bullet.gif)
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