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- Title
Dispersion characteristics of two planktonic diatoms.
- Authors
Granata, Timothy C.; Horne, Alexander J.
- Abstract
Not all phyloplankton behave as ideal water tracers. Longitudinal dispersion experiments were conducted in a large flume with seawater of constant depth and velocity. The transport of the passive, fluorescent tracer, Rhodamine B dye, was compared with unialgal cultures of a large, fast-sinking diatom () and a small, slow-sinking diatom (). Horizontal dispersion rates, proportional to variance per distance, were linear for the dye and but nonlinear for . Results are explained by the interaction of sinking and advection. Longitudinal dispersion coefficients for the dye and were between 60–80 cm s and as high as 280 cm s for . This may have implications for nutrient uptake in natural phytoplankton populations.
- Publication
Journal of Plankton Research, 1985, Vol 7, Issue 6, p947
- ISSN
0142-7873
- Publication type
Article