Research Article Open Access

A Model for Bioaccumulation of Metals in Crassostrea virginica from Apalachicola Bay, Florida

Dennis A. Apeti, Elijah Johnson and Larry Robinson

Abstract

Kinetics of bioaccumulation of the trace metals (Cd and Zn) by C. virginica were investigated in this study. A computer program, Oyster Bioaccumulation Model (OBM), was developed to simulate the accumulation of the metals from both dissolved (water column) and particulate (food) phases by C. virginica. The model is based on two main attributes: (1) the oyster biological characteristics such as gill morphometry, feeding growth rate, respiration rate and lipid composition and (2) the physicochemical properties of metals, which include aqueous diffusivity and partition coefficients. For some data from Chesapeake bay, simulation results compared well with field results. Predicted Bioaccumulation Factor (BAF) parameters (1.5 x 104 for Cd and 6.6 x 104 for Zn) for Apalachicola Bay show that elemental concentrations in C. virginica are up to 4 orders of magnitude greater that that of the water column. Furthermore, the model is shown to be flexible enough to be utilized in other estuaries.

American Journal of Environmental Sciences
Volume 1 No. 3, 2005, 239-248

DOI: https://doi.org/10.3844/ajessp.2005.239.248

Submitted On: 10 July 2005 Published On: 30 September 2005

How to Cite: Apeti, D. A., Johnson, E. & Robinson, L. (2005). A Model for Bioaccumulation of Metals in Crassostrea virginica from Apalachicola Bay, Florida . American Journal of Environmental Sciences, 1(3), 239-248. https://doi.org/10.3844/ajessp.2005.239.248

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Keywords

  • Bioaccumulation
  • heavy metals
  • dissolve
  • particulate
  • Crassostrea virginica
  • filter-feeder
  • gill