EUNIS habitat classification 2017 > M - Marine benthic habitats > MB4 - infralittoral mixed sediment > MB43 - Baltic infralittoral mixed sediment > MB43D - Baltic infralittoral mixed sediment characterized by annual algae

Baltic infralittoral mixed sediment characterized by annual algae

Description (English)

Baltic bottoms in the photic zonewith more than 10 %, but less than 90 % coverage of both hard and soft substrata. Annual algae cover at least 10 % of the seabed, while all other vegetation covers less than 10 %.
Physical environment
Salinity range: all; Exposure range: all; Depth range: photic zone to about 0.5 meters.
Characteristic species
Cladophora glomerata, Ceramium tenuicorne, Ulva spp., Pilayella littoralis, Dictyosiphon spp. Chorda filum, Halosiphon tomentosus
Geographic range
Whole Baltic Sea

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type	code MB43D
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)	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]
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	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

Algae Ceramium tenuicorne

Algae Cladophora glomerata

Algae Pilayella littoralis

Species scientific name	English common name	Species group
Ceramium tenuicorne		Algae
Cladophora glomerata		Algae
Pilayella littoralis		Algae

Other classifications

Classification	Code	Habitat type name	Relationship type
EUNIS Habitat Classification 2007 (revised descriptions 2012)	A5.5	Sublittoral macrophyte-dominated sediment	narrower
European Red List of Habitats	BAL6	Annual algal communities on Baltic infralittoral rock and mixed substrata (predominantly hard)	narrower

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

History

Classification	Code	Habitat type name	Relationship type
EUNIS Habitat Classification 200410	A5.5	Sublittoral macrophyte-dominated sediment	same
EUNIS Habitat Classification 200308	A4.557	Baltic mixed sediments of the infralittoral photic zone dominated by macrophyte vegetation	narrower
EUNIS Habitat Classification 200308	A4.5	Sublittoral macrophyte-dominated sediment	same
EUNIS Habitat Classification 200308	A4.555	Baltic level sandy bottoms of the infralittoral photic zone dominated by macrophyte vegetation	narrower
EUNIS Habitat Classification 200308	A4.556	Baltic muds of the infralittoral photic zone dominated by macrophyte vegetation	narrower
EUNIS Habitat Classification 200308	A4.554	Baltic level gravel bottoms of the infralittoral photic zone dominated by macrophyte vegetation	narrower
EUNIS Habitat Classification 200202	A4.5	Shallow sublittoral sediments dominated by angiosperms	same
EUNIS Habitat Classification 199910	A4.5	Shallow-water sediments dominated by angiosperms (other than Posidonia)	same
EUNIS Habitat Classification 199811	A4.5	Infralittoral sediments dominated by macrophytes	same

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