An attempt to use CPUE data based on data of erussian observers in the assessment of Antarctic toothfish stock in division 58.4.1 is made. Unlike some previous results obtained for this division (e.g. WG-SAM-08/4), the assessment was intended to be independent of estimates of toothfich stock biomass in the Ross Sea. As a result of implementation of a dynamic production model, current biomass in this division is estimated as about 15000 t, while the estimate of virgin biomass B0 is found to be about 32000 t.
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