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)

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

Invertebrates Dendrodoa grossularia
Species scientific name English common name Species group
Dendrodoa grossularia Invertebrates

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
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