Abstract

We present evidence that intermittent variability in zooplankton abundance can be characterized in terms of multifractals. A 3-min-resolution time series of abundance in the calanoid copepod Temora longicornis, taken from a fixed mooring in the coastal waters of the Eastern English Channel for 66 h, provided the data for our analysis. The multifractal nature of the distribution of T. longicornis abundance appears to be very different from those of purely passive scalars (i.e. temperature and salinity), and also from phytoplankton biomass over a similar range of scales in similar environments. Finally, we show that the multifractal distribution of T. longicornis can be wholly described by three basic parameters in the framework of universal multifractals, opening up very large perspectives for

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