These values (water content, C and N) range from 74.0 to 92.8, from 31.6 to 57.8 and from 6.4 to 14.0, respectively. for 15 pelagic cephalopods (all squids: Clarke at al.. 1985; Ikeda and Bruce, 1986: Donnelly et al., 2004: Ikeda. unpublished data) and from 63.6 to 93.9,from 18.4 to 55.6 and from 3.5 to 16.0, respectively, for 58 pelagic fishes