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    Update of the Antarctic toothfish stock assessment for the Ross Sea by means of the TSVPA separable cohort model

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    Número de documento:
    WG-SAM-07/9
    Autor(es):
    D. Vasilyev, K. Shust, V. Babayan and T. Bulgakova (Russia)
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    Resumen

    An updated Antarctic toothfish (in the Ross Sea) stock assessment was done by means of the TISVPA model (2006 data on catch-at-age and cpue and the data on tag recaptures were included). All the three sources of information taken separately (and together) indicate historical increase in stock biomass, perhaps, due to development (broadening) of the fishery. The results show that, according to the Constable & de la Mare (1996) decision rules, annual catches of 23 000 tonnes per year are suitable.

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