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    Manual for age determination of Antarctic toothfish (Dissostichus mawsoni)

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    Document Number:
    WG-FSA-10/21
    Author(s):
    C.P. Sutton and P.L. Horn (New Zealand)
    Agenda Item(s)
    WG-FSA-10 - 10 - Scheme of International Scientific Observation
    Abstract

    Production of an age determination manual for Antarctic toothfish (Dissostichus mawsoni) is part of the focus of the SC-CAMLR workplan for 2010. The aim of the current work was to produce a manual that presents standard protocols used by the National Institute of Water and Atmospheric Research Limited (NIWA) for estimating age of D. mawsoni. It uses otoliths collected from the Ross Sea region and aims to guide researchers to maintain common procedures. This will increase the precision and accuracy of age estimates contributing to stock assessment.