A physical model for the simulation of bioturbation and its comparison to experiments with oligochaetes

Sanat Mohanty, Danny D. Reible, K. T. Valsaraj, L. J. Thibodeaux

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

The development of models of contaminant migration via bioturbation is the focus of this work. Two models are developed from two types of organism activity: organisms that mix sediment vertically (e.g., by burrowing) and those that mix sediment horizontally by movement confined to a given depth below the sediment-water interface. The models are compared to experimental measurements with deposit-feeding oligochaetes that are of the burrowing type. Both models provide a good description of the contaminant flux and average concentration profile. It is not possible to differentiate between the models on the basis of the available data.

Original languageEnglish
Pages (from-to)255-262
Number of pages8
JournalEstuaries
Volume21
Issue number2
DOIs
StatePublished - Jun 1998

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