Baltic circalittoral mixed sediment dominated by Ascidiacea
Description (English)
Baltic circalittoral bottoms in the aphotic zone with at least 10- 90 % coverage of hard (rock/boulders/stone) and 10-90 % soft substrata (e.g. muddy/coarse sediment/sand). Epibenthic chordates cover at least 10 % of the seabed, and more than other perennial attached erect groups. Out of the epibenthic chordates, sea squirts constitute at least 50 % of the biomass.
Physical environment
Substrate is soft or crystalline rock, boulders or stones mixed with mobile substrates such as sand or coarse substrate.
Characteristic species
Ascidiacea: Dendrodoa grossularia, Molgula spp
Geographic range
(Kattegat) and Belt Sea
Source: EUNIS habitat classification
Quick facts
EUNIS habitat type | code MC4321 |
---|---|
Relation to | Resolution 4 habitat type (used for designation of Emerald sites) |
Legal status
Relation to other habitat types mentioned in legal instruments
Vegetation types
Relation to vegetation types (syntaxa)
Not availableSpecies mentioned in habitat description
Species scientific name | English common name | Species group |
---|---|---|
Dendrodoa grossularia | Invertebrates |
Other classifications
Classification | Code | Habitat type name | Relationship type |
---|---|---|---|
EUNIS Habitat Classification 2007 (revised descriptions 2012) | A5.44 | Circalittoral mixed sediments | narrower |
European Red List of Habitats | BAL42 | Epifaunal communities on Baltic circalittoral rock and mixed substrata (predominantly hard) | narrower |
European Red List of Habitats | BAL49 | Epibenthic communities in Baltic upper circalittoral mixed sediment | narrower |
History
Classification | Code | Habitat type name | Relationship type | Comment |
---|---|---|---|---|
EUNIS Habitat Classification 200410 | A5.44 | Circalittoral mixed sediments | same | |
EUNIS Habitat Classification 200308 | A4.44 | Animal communities of circalittoral mixed sediments | wider | |
EUNIS Habitat Classification 200202 | A4.44 | Animal communities of circalittoral mixed sediments | same | |
EUNIS Habitat Classification 199910 | A4.49 | Animal communities of circalittoral mixed sediments | same |