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    Some aspects of spatial–temporal variability of hydrodynamic water circulation and krill distribution in the Scotia Sea

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    Document Number:
    WG-EMM-16/39
    Author(s):
    S.M. Kasatkina and V.N. Shnar
    Submitted By:
    Dr Svetlana Kasatkina (Russian Federation)
    Approved By:
    Mr Dmitry Kremenyuk (Russian Federation)
    Accessibility Categories
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    Agenda Item(s)
    WG-EMM-16 - 2.3.1 - Krill
    Abstract

    The authors considered the inter-annual variability of krill transport factors in the Scotia Sea analysing data from available meso-scale surveys covered the Scotia Sea. The subject of analysis were the geostrophic water masses circulation and krill transport factors, including variability of water masses  (kg / m3) and krill biomass (g / m3) transporting across the survey area.  Obtained estimates were compared with those from CCAMLR 2000 Survey.  It was shown that the presence or absence of krill in subareas/SSMUs in the Scotia Sea is in a greater degree a reflection of the dynamics of krill geostrophic transport, and is not determined by the krill stock state or not determined by the influence of krill fishery.