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    A comparison of fishing mortality estimates derived using data-rich and data-limited approaches

    Request Meeting Document
    Document Number:
    WG-SAM-2022/23
    Author(s):
    C. Darby and T. Earl
    Submitted By:
    Ms Georgia Robson
    Approved By:
    Dr Chris Darby
    Accessibility Categories
    Request permission to release each time (RP)
    Agenda Item(s)
    WG-SAM-2022 - 3.3 - Stock assessment for data-limited toothfish fisheries
    Abstract

    Data limited analysis is applied to tagging returns to determine estimates of exploitation rates (fishing mortality) on the Patagonian toothfish (Dissostichus eleginoides) stock in Subarea 48.3. The results show that the tagging data collected from the fishery can be analysed in a way that is consistent with the simple assumptions of catch curve analysis, to provide data limited estimates that are consistent in their scale with the full CASAL assessment model outputs.