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    Proposal for continuing research on Antarctic toothfish (Dissostichus mawsoni) in Statistical Subarea 48.6 in 2021/22 from a multiyear plan (2021–2024): Research Plan under CM 21-02, paragraph 6(iii)

    Request Meeting Document
    Document Number:
    WG-SAM-2021/04 Rev. 2
    Delegations of Japan, South Africa and Spain
    Submitted By:
    Dr Yumiko Osawa (Japan)
    Approved By:
    Ms Mako Iioka (Japan)

    A collaborative research program has been undertaken by Japan and South Africa since 2013 to enhance data collection and analysis in the subarea 48.6 under CM 21-02. Spain joined the proposal starting from 2018/19 fishing season in order to contribute to the data acquisition and to speed up the integrated assessments of the Antarctic toothfish (Dissostichus mawsoni) stock in this subarea (WG-FSA-18/34).

    The continuation of the three-member research proposal for 2021/22 season is presented to ensure continuity of previous research activities. Data and investigations about the population structure and various demographic parameters of D. mawsoni using trotline (JPN and ZAF) and Spanish longline (ESP) gears, established tagging techniques, pop-up tags and genetic analysis will provide the basis for the development of spatial population models and assessments in support of management advice. An Integrated Stock Assessment (ISA) which takes into account the tag time series from southern research areas of Subarea 48.6 D. mawsoni is going to be continually developed until the end of the 2023/24 season.

    The updated CCAMLR Research Plan – Research Proponent Self-Assessment can be found in Appendix 1.