Mean taxon densities (numbers 100 m−2) of species shared between Morvin and other Atlantic sites at similar depth.

Morvin (this study) the highest of pre and R densities are presented. Le Danois Bank, northern Spain (425–550 m depth); data from photographic study by [53] augmented, if additional species were encountered, with trawl data (marked with (T); [70]). Porcupine Seabight, SW Ireland (150–550 m depth) data from [49] and unpublished data (Brian Bett, NOC). West of Shetland, UK (420 to 508 m depth); data from [52]. If species were found, but not enumerated, presence was marked with X. The final row represents the total number of taxa common to Morvin and the relevant literature study.