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JOURNAL OF PLANKTON RESEARCH | VOLUME 18 | NUMBER 10 | PAGES 1881-1896 | 1996
© Oxford University Press

research-article

Simulations of the effect of advective-diffusive processes on observations of plankton abundance and population rates

James H. Power

Coastal Fisheries Institute and Department of Oceanography and Coastal Sciences, Center for Coastal, Energy, and Environmental Resources, Wetland Resources Building, Louisiana State University Baton Rouge, LA 70803-7503, USA

Received on December 19, 1995; accepted on May 14, 1996 The transport of plankters by water currents is acknowledged to have an important influence on observations of organism abundance and population processes, but assessment of this effect has been difficult to achieve. This paper presents simulations using the theory of A.Okubo and co-workers. The transport of multiple current drogues over time in a physically realistic advective and diffusive current field was simulated. The impact of transport processes on the plankton abundance associated with each current drogue was then evaluated, and the results are presented graphically. Although plankton numbers were held constant in the simulation, the inferred, but incorrect, population rate parameters that would be obtained using successive observations of plankton abundance in the simulated flow field are also presented.


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