Skip to main content

    Preliminary insights of Antarctic toothfish sub-adults life-history traits from the southern Weddell Sea (Subarea 48.5)

    Request Meeting Document
    Document Number:
    M. La Mesa, F. Donato and E. Riginella
    Submitted By:
    Dr Mario La Mesa (Italy)
    Approved By:
    Dr Marino Vacchi (Italy)

    A few sub-adults of the Antarctic toothfish (Dissostichus mawsoni) were collected by bottom trawling carried out by the RV Polarstern in the southern Weddell Sea (Subarea 48.5) (PS82, ANT-XXIX/9, 19 December 2013 - 5 March 2014). Fishes were caught on the shelf and slope off the Riiser-Larsen Ice Shelf. In this document we report first data on individual age, gonad stage of maturity and diet through otolith readings, histological and stomach content analyses, respectively. All specimens were immature, showing an age range of 10-13 years. Main prey consisted of Antarctic silverfish and daggertooth.

    Top of page

    © Copyright - Commission for the Conservation of Antarctic Marine Living Resources 2021, All rights reserved.

    Site by Eighty Options