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    Distribution of phytoplankton in the mixed layer: implication of krill abundance

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    Document Number:
    SC-CAMLR-VII/BG/26
    Author(s):
    Yamazaki, H. and T.R. Osborn
    Approved By:
    Admin Admin (CCAMLR Secretariat)
    Accessibility Categories
    Open Access (OA)
    Review Finalised:
    No
    Agenda Item(s)
    SC-CAMLR-VII - - undefined
    Abstract

    The vertical trajectory of phytoplankton in the Antarctic ocean is modelled as a random walk with a diffusivity derived from a simple Ekman layer model and turbulence theory. The surface mixing layer is shallow, but diffusion is large enough to effect the vertical distribution of phytoplankton in the upper ocean.