“…eDNA metabarcoding approaches are revolutionizing marine biodiversity assessment and monitoring because they can be used to simultaneously determine entire species communities, even when the exact composition of these assemblages is unknown (e.g., Deiner et al, 2017;Djurhuus et al, 2017;Stefanni et al, 2018;Eble et al, 2020;Kolda et al, 2020;McClenaghan et al, 2020;Seymour et al, 2020;Kawato et al, 2021). eDNA metabarcoding is becoming a particularly valuable tool for deep-sea biodiversity research and monitoring given high species diversity, low animal numbers, difficulties in taxonomic identification due to limited taxonomic expertise, large and remote location, and associated logistical constraints for sample/specimen acquisition (Thomsen et al, 2016;Kersten et al, 2019;Atienza et al, 2020;Canals et al, 2021;Kawato et al, 2021;Merten et al, 2021).…”