EUNIS habitat classification 2017 > M - Marine benthic habitats > MB5 - Infralittoral sand > MB54 - Black Sea infralittoral sand > MB546 - Seagrass and rhizomatous algal meadows in Black Sea freshwater influenced infralittoral muddy sands

Seagrass and rhizomatous algal meadows in Black Sea freshwater influenced infralittoral muddy sands

Description (English)

Sheltered shallow (0.5-2 m) coastal waters such as embayments, inlets, bights, harbours and estuaries, more or less influenced by freshwater (salinity 0.5-10 psu), where sedimentary stability leads to muddy sands. Mixed or monospecific meadows are formed by Zostera noltei, Ruppia maritima, R. cirrhosa, Chara spp.,Stuckenia pectinata (synPotamogeton pectinatus), Najas minor and Ranunculus baudotii. Algae commonly found include species of Cladophora and Ulva which are tolerant of very low salinities.

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type	code MB546
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)	Sandbanks which are slightly covered by sea water all the time	1110	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)	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	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

Flowering Plants Najas minor

Flowering Plants Potamogeton pectinatus

Flowering Plants Ranunculus baudotii

Flowering Plants Stuckenia pectinata

Species scientific name	English common name	Species group
Najas minor		Flowering Plants
Potamogeton pectinatus		Flowering Plants
Ranunculus baudotii		Flowering Plants
Stuckenia pectinata		Flowering Plants

Other classifications

Classification	Code	Habitat type name	Relationship type
EUNIS Habitat Classification 2007 (revised descriptions 2012)	A5.24	Infralittoral muddy sand	narrower
European Red List of Habitats	BLSA5.53	Seagrass and rhizomatous algal meadows in Pontic freshwater-influenced sheltered infralittoral muddy sands and sandy muds	same

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

History

Classification	Code	Habitat type name	Relationship type
EUNIS Habitat Classification 200410	A5.24	Infralittoral muddy sand	same
EUNIS Habitat Classification 200308	A4.25	Infralittoral muddy sand	same
EUNIS Habitat Classification 200202	A4.25	Animal communities in fully marine shallow-water muddy sands	same
EUNIS Habitat Classification 199910	A4.26	Animal communities in fully marine shallow-water muddy sands	same
EUNIS Habitat Classification 199811	A4.21	Animal communities in shallow infralittoral muddy sands	same
EUNIS Habitat Classification 199712	A4.22	Animal communities in shallow infralittoral muddy sands	same
MNCR BioMar 97.06 (Britain & Ireland)	IMS.FaMS	Shallow muddy sand faunal communities	same
MNCR BioMar 96.7 (Britain & Ireland)	IMS.FaMS		same

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