EUNIS habitat classification 2017 > M - Marine benthic habitats > MD6 - Offshore circalittoral mud > MD62 - Atlantic offshore circalittoral mud > MD621 - Faunal communities on Atlantic offshore circalittoral mud > MD6215 - Styela gelatinosa, Pseudamussium septemradiatum and solitary ascidians on sheltered Atlantic offshore circalittoral muddy sediment

Styela gelatinosa, Pseudamussium septemradiatum and solitary ascidians on sheltered Atlantic offshore 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 MD6215

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

Invertebrates Ascidia conchilega
Invertebrates Corella parallelogramma
Invertebrates Styela gelatinosa
Species scientific name English common name Species group
Ascidia conchilega Invertebrates
Corella parallelogramma Invertebrates
Styela gelatinosa Invertebrates

Other classifications

History

Classification Code Habitat type name Relationship type Comment
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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