EUNIS habitat classification 2017 > M - Marine benthic habitats > MB6 - Infralittoral mud > MB64 - Black Sea infralittoral mud > MB641 - Black sea infralittoral fine mud

Black sea infralittoral fine mud

Description (English)

Fine muddy habitats situated in the lower infralittoral zone at the mouths of large rivers (Danube, Dnepr, Bug) discharging into the Northwestern Black Sea shelf. These fine muds mixed with terrestrial and freshwater detritus form soft, unstable deposits. Where the sediment content is lower in detritic organic particles terrigenous muds are more stable and sticky. In both zones the habitat is populated by bivalve molluscs and polychaete worms adapted to living in very soft substrata with high organic content. Characteristic species:Neanthes succinea, Nephthys hombergii , Abra prismatica, Mysella bidentata, Abra albaandAcanthocardium paucicostatum.

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type	code MB641
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]

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

Invertebrates Abra alba

Invertebrates Abra prismatica

Invertebrates Mysella bidentata

Species scientific name	English common name	Species group
Abra alba		Invertebrates
Abra prismatica		Invertebrates
Mysella bidentata		Invertebrates

Other classifications

Classification	Code	Habitat type name	Relationship type
EUNIS Habitat Classification 2007 (revised descriptions 2012)	A5.34	Infralittoral fine mud	narrower
European Red List of Habitats	BLSA5.34	Pontic infralittoral fine mud	same

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

History

Classification	Code	Habitat type name	Relationship type
EUNIS Habitat Classification 200410	A5.34	Infralittoral fine mud	same
EUNIS Habitat Classification 200308	A4.31	Shallow fully marine mud communities	wider
EUNIS Habitat Classification 200202	A4.31	Shallow fully marine mud communities	wider
EUNIS Habitat Classification 199910	A4.31	Shallow marine mud communities	wider
EUNIS Habitat Classification 199811	A4.31	Shallow marine mud communities	wider
MNCR BioMar 97.06 (Britain & Ireland)	IMU.MarMu	Shallow marine mud communities	wider

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