EUNIS habitat classification 2012 amended 2019 > A - Marine habitats > A5 - Sublittoral sediment > A5.3 - Sublittoral mud > A5.37 - Deep circalittoral mud > A5.373 - Styela gelatinosa, Pseudamussium septemradiatum and solitary ascidians on sheltered deep circalittoral muddy sediment

Styela gelatinosa, Pseudamussium septemradiatum and solitary ascidians on sheltered deep circalittoral muddy sediment

English name: Styela gelatinosa, Pseudamussium septemradiatum and solitary ascidians on sheltered deep circalittoral muddy sediment

Description (English)

This biotope is known only from deep water in Loch Goil (Clyde sealochs) in fine mud at 65 m with terrigenous debris. Large numbers of solitary ascidians, including Styela gelatinosa, Ascidia conchilega, Corella parallelogramma and Ascidiella spp., are characteristic of this biotope together with the bivalve Pseudamussium septemradiatum. Terebellid worms, the bivalve Abra alba and the polychaete Glycera tridactyla may also occur. It is possibly an ice age relict biotope.

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code A5.373
Bern Convention Included in a Resolution 4 habitat type at a higher level (A5)

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

Invertebrates Abra alba
Invertebrates Ascidia conchilega
Invertebrates Corella parallelogramma
Invertebrates Glycera tridactyla
Invertebrates Styela gelatinosa
Species scientific name English common name Species group
Abra alba Invertebrates
Ascidia conchilega Invertebrates
Corella parallelogramma Invertebrates
Glycera tridactyla Invertebrates
Styela gelatinosa Invertebrates

Other classifications

Classification Code Habitat type name Relationship type
Marine Habitat Classification Britain/Ireland 0405 SS.SMu.OMu.StyPse <I>Styela gelatinosa</I>, <I>Pseudamussium septemradiatum</I> and solitary ascidians on sheltered deep circalittoral muddy sediment source
CORINE Land Cover 5.2.3. Sea and ocean n/a
For relation to plant communities (syntaxa), see Vegetation types

History

Classification Code Habitat type name Relationship type
EUNIS Habitat Classification 200410 A5.373 Styela gelatinosa, Pseudamussium septemradiatum and solitary ascidians on sheltered deep circalittoral muddy sediment same
EUNIS Habitat Classification 200308 A4.743 Styela gelatinosa, Pseudamussium septemradiatum and solitary ascidians on sheltered deep circalittoral muddy sediment same
EUNIS Habitat Classification 200202 A4.743 Styela gelatinosa and other solitary ascidians on sheltered deep circalittoral muddy sediment same
EUNIS Habitat Classification 199910 A4.713 Styela gelatinosa and other solitary ascidians on sheltered deep circalittoral muddy sediment same
MNCR BioMar 97.06 (Britain & Ireland) COS.Sty Styela gelatinosa and other solitary ascidians on sheltered deep circalittoral muddy sediment same
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