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    Developing plausible estimates of subarea and fished area biomasses

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    Номер документа:
    WG-ASAM-2021/14
    Автор(ы):
    B.A. Krafft, G. Macaulay, S. Fielding and P.N. Trathan
    Представлено (имя):
    Professor Philip Trathan
    Утверждено (имя):
    Dr Chris Darby
    Пункт(ы) повестки дня
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    In this paper we present krill density biomass estimates for Subareas 48.1, 48.2, 48.3 and 48.4 and for current fished areas, using post-hoc stratification of krill density estimates from the 2019 International Krill Survey. We highlight the importance of survey strata design for the differing areas, with implications for management. Each level of stratification requires different extrapolations from survey area to stratum area.