La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	A physical model for the simulation of bioturbation and its comparison to experiments with oligochaetes
Auteurs :	S. Mohanty, Auteur ; D. D. Reible, Auteur ; K. T. Valsaraj, Auteur ; L. J. Thibodeaux, Auteur
Type de document :	Article
Dans :	Estuaries (21(2) JUN 1998)
Article en page(s) :	255-262
Résumé :	The development of models of contaminant migration ria 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.

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