“…They attain high regional biomass, are important as prey and predators, and have high ecological diversity (Bjørke and Gjøsaeter, 1998;Gardiner and Dick, 2010;Golikov et al, 2013;Xavier et al, 2018). Cephalopods are challenging to identify morphologically (e.g., Nozères and Roy, 2021;this study, below), and genetic identification of certain species is hampered by limited availability of reference sequences in GenBank (e.g., Fernańdez-A ́lvarez et al, 2021;Katugin and Zolotova, 2023;Taite et al, 2023). Finally, cephalopods respond opportunistically to climate change, resulting in increasing regional biomass, changing size-at-maturity and expanding geographical ranges (e.g., Pecl and Jackson, 2008;Hoving et al, 2013a;Doubleday et al, 2016;Xavier et al, 2018;Golikov et al, 2019b;Oesterwind et al, 2022).…”