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An Ecological-Physical Coupled Model with Ontogenetic Vertical Migration of Zooplankton in the Northwestern Pacific

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Abstract

A vertical one-dimensional ecosystem model with vertical migration of zooplankton was constructed and applied to Station A-7 off Sanriku district of Japan in the northwest Pacific Ocean. The model consists of an eight-compartment ecosystem model coupled with a physical model of the oceanic mixed layer. The transition of phytoplankton species responsible for the spring bloom is well reproduced by this model with vertical migration of zooplankton but is not simulated by the model without vertical migration. This new model also simulates an observed inter-annual variability of the spring bloom, with the timing and intensity of the simulated bloom in a given year depending upon the strength of mixing during the preceding winter.

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Authors and Affiliations

  1. Graduate School of Fisheries Sciences, Hokkaido University, Minato-cho 3-1-1, Hakodate, Hokkaido, 041-8611, Japan

    Michio J. Kishi & Hitoshi Motono

  2. Hokkaido National Institute of Fisheries, Katsurakoi 116, Kushiro, Hokkaido, 085-0802, Japan

    Makoto Kashiwai & Atsushi Tsuda

Authors
  1. Michio J. Kishi
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  2. Hitoshi Motono
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  3. Makoto Kashiwai
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  4. Atsushi Tsuda
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Kishi, M.J., Motono, H., Kashiwai, M. et al. An Ecological-Physical Coupled Model with Ontogenetic Vertical Migration of Zooplankton in the Northwestern Pacific. Journal of Oceanography 57, 499–507 (2001). https://doi.org/10.1023/A:1021517129545

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  • DOI: https://doi.org/10.1023/A:1021517129545

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