EUNIS habitat classification 2017 > M - Marine benthic habitats > MA1 - Littoral rock > MA13 - Baltic hydrolittoral rock > MA138 - Baltic hydrolittoral hard clay characterized by mixed epibenthic macrocommunity

Baltic hydrolittoral hard clay characterized by mixed epibenthic macrocommunity

Description (English)

Baltic bottoms in the hydrolittoral zone (with level fluctuations due to tide or weather ) with at least 90 % coverage of hard clay. No perennial attached erect group has ? 10 % coverage.
Physical environment
Substrate is hard clay. Depth range: photic zone. Typically high energy exposure areas.
Quality descriptors
Diversity, abundance and biomass of fauna.
Geographic range
Whole Baltic Sea

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type	code MA138
Relation to	Resolution 4 habitat type (used for designation of Emerald sites)

Legal status

Relation to other habitat types mentioned in legal instruments

Legal text	Annex	Name in legal text	Code in legal text	Habitat type relationship	More information
Convention on the conservation of European wildlife and natural habitats	Revised Annex I of Resolution 4 (1996) of the Bern Convention on endangered natural habitats types using the EUNIS habitat classification (year of revision 2010)	Estuaries	1130	Overlap	https://wcd.coe.int/ViewDoc....ckColorLogged=FDC864 Resolution No. 4 (1996) of the Bern Convention lists endangered natural habitats requiring specific conservation measures [and the designation of Areas of Special Conservation Interest (ASCIs) forming the Emerald network]
Convention on the conservation of European wildlife and natural habitats	Revised Annex I of Resolution 4 (1996) of the Bern Convention on endangered natural habitats types using the EUNIS habitat classification (year of revision 2010)	Large shallow inlets and bays	1160	Narrower	https://wcd.coe.int/ViewDoc....ckColorLogged=FDC864 Resolution No. 4 (1996) of the Bern Convention lists endangered natural habitats requiring specific conservation measures [and the designation of Areas of Special Conservation Interest (ASCIs) forming the Emerald network]
Convention on the conservation of European wildlife and natural habitats	Revised Annex I of Resolution 4 (1996) of the Bern Convention on endangered natural habitats types using the EUNIS habitat classification (year of revision 2010)	Reefs	1170	Narrower	https://wcd.coe.int/ViewDoc....ckColorLogged=FDC864 Resolution No. 4 (1996) of the Bern Convention lists endangered natural habitats requiring specific conservation measures [and the designation of Areas of Special Conservation Interest (ASCIs) forming the Emerald network]
Convention on the conservation of European wildlife and natural habitats	Revised Annex I of Resolution 4 (1996) of the Bern Convention on endangered natural habitats types using the EUNIS habitat classification (year of revision 2010)	Baltic esker islands with sandy, rocky and shingle beach vegetation and sublittoral vegetation	1610	Overlap	https://wcd.coe.int/ViewDoc....ckColorLogged=FDC864 Resolution No. 4 (1996) of the Bern Convention lists endangered natural habitats requiring specific conservation measures [and the designation of Areas of Special Conservation Interest (ASCIs) forming the Emerald network]
Convention on the conservation of European wildlife and natural habitats	Revised Annex I of Resolution 4 (1996) of the Bern Convention on endangered natural habitats types using the EUNIS habitat classification (year of revision 2010)	Boreal baltic islets and small islands	1620	Overlap	https://wcd.coe.int/ViewDoc....ckColorLogged=FDC864 Resolution No. 4 (1996) of the Bern Convention lists endangered natural habitats requiring specific conservation measures [and the designation of Areas of Special Conservation Interest (ASCIs) forming the Emerald network]

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

Not available

Other classifications

Classification	Code	Habitat type name	Relationship type
EUNIS Habitat Classification 2007 (revised descriptions 2012)	A1.48	Hydrolittoral hard clay	narrower

For relation to plant communities (syntaxa), see Vegetation types

History

Classification	Code	Habitat type name	Relationship type
EUNIS Habitat Classification 200410	A1.48	Hydrolittoral hard clay	same
EUNIS Habitat Classification 200308	A1.43	Hydrolittoral hard clay	same
EUNIS Habitat Classification 200202	A1.43	Hydrolittoral hard clay	same
EUNIS Habitat Classification 199910	A1.43	Hydrolittoral hard clay	same

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