Small-scale biophysical couplings in Lake Baikal: new insights from the fractal properties of temperature and phytoplankton distributions

  • Seuront L. 1, 2, 3
  • Tanaka Y. 4
  • Katano T. 4, 5
  • Sugiyama M. 6
  • Watanabe Y. 5
  • Shimaraev M.N. 7
  • Drucker V.V. 7
  • 1 The University of Lille, CNRS, Univ. Littoral Cote d’Opale, UMR 8187, LOG, Laboratoire d’Oceanologie et de Geosciences, F-59000, Lille, France
    2 Department of Marine Resources and Energy, TUMSAT, Tokyo, Japan
    3 Department of Zoology and Entomology, Rhodes University, Grahamstown, South Africa
    4 Department of Ocean Sciences, TUMSAT, Tokyo, Japan
    5 Faculty of Science, Tokyo Metropolitan University, Tokyo, Japan
    6 Department of Natural Resources, Kyoto University, Kyoto, Japan
    7 Limnological Institute, SB RAS, Irkutsk, Russia
Keywords: Couplings, plankton, passive and biologically-active scalars, turbulence, fractals


Using vertical profiles of temperature and in vivo fluorescence sampled between Tanhoy and Listvyanka, we show that temperature and fluorescence fluctuations exhibit specific levels of internal structuration that are independent of the overall vertical structure of the water column, which suggest a previously untapped small-scale biophysical coupling.