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 journalArticle

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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