MF6-212 - Assemblage de Gracilechinus alexandri, Psilaster et Plinthaster sur vase du bathyal inférieur en Atlantique

Gracilechinus alexandri, Psilaster and Plinthaster assemblage on Atlantic lower bathyal mud

Classification des habitats EUNIS 2022

Descriptif de l'habitat

This biotope consists of urchin Gracilechinus alexandri with seastars on mud substrate. Gage (1986) describes an assemblage from the continental slope west of the Hebrides (Rockall Trough) between 1400 and 2500m on pelagic ooze and terbidite dominated by echinoderms. The same epifaunal assemblage is also found in the upper de l'abyssal but associated infauna are likely to differ. Characterising species listed refer to all Gracilechinus alexandri, Psilaster and Plinthaster assemblages not just those found associated with the zone and substrate specified in this biotope.

Bibliography

European Topic Centre on Biological Diversity 2022. EUNIS marine habitat classification 2022 including crosswalks. Table Excel. (Source)