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Interaction between motile phytoplankton and langmuir circulation

Authors
Journal
Ecological Modelling
0304-3800
Publisher
Elsevier
Publication Date
Volume
31
Identifiers
DOI: 10.1016/0304-3800(86)90062-1

Abstract

Abstract Motile flagellate, Heterosigma akashiwo, was grown in pure culture; container (60 cm × 30 cm × 3 cm) and f/2 medium were used. In this culture vertical convection cells, called a Langmuir circulation, was simulated by a diffuser and the distribution of H.akashiwo was measured. A stream function in convection cells was used to simulate a trajectory of motile phytoplankton in convection cells and it was found that a non-dimensional parameter R = V p/ V 0 (where V p is a moving speed of motile phytoplankton and V 0 is a maximum velocity in convection cells) determines an accumulation of flagellates and the regions of retention. The simulation results explain the distribution of H. akashiwo observed in the experiments.

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