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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MA13 : Baltic hydrolittoral rock
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MA131 : Baltic hydrolittoral rock and boulders characterized by perennial algae
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MA132 : Baltic hydrolittoral rock and boulders characterized by aquatic moss
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MA133 : Baltic hydrolittoral boulders characterized by epibenthic crustacea
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MA134 : Baltic hydrolittoral rock and boulders characterized by annual algae
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MA135 : Baltic hydrolittoral rock and boulders characterized by mixed epibenthic macrocommunity
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MA136 : Baltic hydrolittoral rock and boulders characterized by sparse epibenthic macrocommunity
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MA137 : Baltic hydrolittoral rock and boulders characterized by no macrocommunity
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MA138 : Baltic hydrolittoral hard clay characterized by mixed epibenthic macrocommunity
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MA139 : Baltic hydrolittoral hard clay characterized by sparse epibenthic macrocommunity
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MA13A : Baltic hydrolittoral hard clay characterized by no macrocommunity
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MA13B : Baltic hydrolittoral marl (marlstone rock)
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MA13C : Permanent brackish pools in the Baltic geolittoral zone
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![Alaria esculenta [forest with dense anemones and crustose sponges on extremely exposed Atlantic infralittoral bedrock](images/img_bullet.gif)
![Laminaria hyperborea [forest with a faunal cushion (sponges and polyclinids) and foliose red seaweeds on very exposed Atlantic infralittoral rock](images/img_bullet.gif)
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![Dense foliose red seaweeds on moderately exposed Atlantic infralittoral silty rock](images/img_bullet.gif)
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![Hiatella arctica [and seaweeds on vertical Atlantic littoral limestone / chalk](images/img_bullet.gif)
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![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 offshore circalittoral sand](images/img_bullet.gif)
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