Baltic hydrolittoral mixed sediment characterized by Charales

Description (English)

Baltic hydrolittoral bottoms (with level fluctuations due to tide or weather) in the photic zone with more than 10 %, but less than 90 % coverage of both hard and soft substrata. Submerged rooted plants cover least 10 % of the seabed and more than other perennial attached erect groupsSubmerged rooted plants cover at least 10 % of the seabed and more than other perennial attached erect groups. Of the submerged rooted plants, Charales constitutes at least 50 % of the biovolume.
Physical environment
Salinity range: <6 psu; Exposure range: Sheltered to moderately exposed;
Characteristic species
Chara aspera, Chara baltica Tolypella nidifica, Chara horrida
GEOGRAPHIC RANGE
Whole Baltic Sea

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code MA4323
Relation to Resolution 4 habitat type (used for designation of Emerald sites)

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

Algae Chara horrida
Species scientific name English common name Species group
Chara horrida Algae

Other classifications

Classification Code Habitat type name Relationship type
EUNIS Habitat Classification 2007 (revised descriptions 2012) A5.5 Sublittoral macrophyte-dominated sediment narrower
For relation to plant communities (syntaxa), see Vegetation types

History

Classification Code Habitat type name Relationship type Comment
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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