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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MB1211 : Alaria esculenta on exposed Atlantic sublittoral fringe bedrock
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MB1212 : Alaria esculenta forest with dense anemones and crustose sponges on extremely exposed Atlantic infralittoral bedrock
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MB1213 : Laminaria hyperborea forest with a faunal cushion (sponges and polyclinids) and foliose red seaweeds on very exposed Atlantic infralittoral rock
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MB1214 : Sparse Laminaria hyperborea and dense Paracentrotus lividus on exposed infralittoral limestone
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MB1215 : Laminaria hyperborea with dense foliose red seaweeds on exposed Atlantic infralittoral rock
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MB1216 : Laminaria hyperborea and red seaweeds on exposed Atlantic vertical rock
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MB1217 : Laminaria digitata on moderately exposed Atlantic sublittoral fringe rock
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MB1218 : Laminaria hyperborea on tide-swept Atlantic infralittoral rock
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MB1219 : Laminaria hyperborea on tide-swept Atlantic infralittoral mixed substrata
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MB121A : Laminaria hyperborea and foliose red seaweeds on moderately exposed Atlantic infralittoral rock
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MB121A1 : Laminaria hyperborea forest and foliose red seaweeds on moderately exposed upper infralittoral rock
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MB121A2 : Laminaria hyperborea park and foliose red seaweeds on moderately exposed lower infralittoral rock
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MB121A3 : Grazed Laminaria hyperborea forest with coralline crusts on upper infralittoral rock
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MB121A4 : Grazed Laminaria hyperborea park with coralline crusts on lower infralittoral rock
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MB121A5 : Sabellaria spinulosa with kelp and red seaweeds on sand-influenced infralittoral rock
![Dense foliose red seaweeds on moderately exposed Atlantic infralittoral silty rock](images/img_bullet.gif)
![Laminaria hyperborea [on moderately exposed Atlantic vertical rock](images/img_bullet.gif)
![Hiatella arctica [and seaweeds on vertical Atlantic littoral limestone / chalk](images/img_bullet.gif)
![Laminaria digitata[, ascidians and bryozoans on tide-swept Atlantic sublittoral fringe rock](images/img_bullet.gif)
![Mixed kelp with foliose red seaweeds, sponges and ascidians on sheltered tide-swept Atlantic infralittoral rock](images/img_bullet.gif)
![Mixed kelp and red seaweeds on tide-swept Atlantic infralittoral boulders, cobbles and gravel](images/img_bullet.gif)
![Laminaria saccharina [with foliose red seaweeds and ascidians on sheltered tide-swept Atlantic infralittoral rock](images/img_bullet.gif)
![Filamentous red seaweeds, sponges and [Balanus crenatus] on tide-swept variable-salinity Atlantic infralittoral rock](images/img_bullet.gif)
![Halopteris filicina [with coralline crusts on moderately exposed Atlantic infralittoral rock](images/img_bullet.gif)
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![Arctic infralittoral mixed sediment](images/img_bullet.gif)
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![Mediterranean infralittoral mixed sediment](images/img_bullet.gif)
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![Arctic circalittoral mixed sediment](images/img_bullet.gif)
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