Psycropotes longicauda and Oneirophanta mutabilis assemblage on Atlantic abyssal mud

This biotope consists of assemblages dominated by holothurians Psycropotes longicauda and Oneirophanta mutabilison mud. Lavaleye et al. (2002) describe this assemblage from their two deepest stations at 3650 and 4500m at the base of the Pendragon Escarpment, presumably on pelagic ooze. Billett et al. (2001) describe holothurians as dominating the megafaunal biomass at approximately 5000m on the Porcupine Abyssal Plain and cite Psychropotes longicauda and Oneirophanta mutabilis, together with Pseudostichopus villosusas contributing substantially to the total holothurian biomass. This assemblage was described based on literature only.

Código Eunis 2021: MG6212