Pelagic cnidarians and ctenophores caught by macrozoozooplankton trawl at the different superstations, sorted according to taxonomic order.

‘Hydromedusae’ refers to specimens not identified further than subclass Hydroidolina. All depth strata sampled are combined for each superstation. Average abundance, over the entire water column, is presented in individuals 100 000 m-3. For siphonophores, and stations with missing subsamples, no abundance estimate is provided; + indicates presence. Frequency of occurrence (FO) shows the percentage of stations (n = 17) at which a species was observed. For complete data, see supplementary S1 Table.