Towards an integrated ecosystem-based bioaccumulation and metal speciation model

Richards, Russell G., Chaloupka, Milani and Tomlinson, Rodger (2010) Towards an integrated ecosystem-based bioaccumulation and metal speciation model. Ecosystems, 13 8: 1303-1318. doi:10.1007/s10021-010-9392-8

Author Richards, Russell G.
Chaloupka, Milani
Tomlinson, Rodger
Title Towards an integrated ecosystem-based bioaccumulation and metal speciation model
Journal name Ecosystems   Check publisher's open access policy
ISSN 1432-9840
Publication date 2010-12
Sub-type Article (original research)
DOI 10.1007/s10021-010-9392-8
Volume 13
Issue 8
Start page 1303
End page 1318
Total pages 16
Place of publication New York, NY, United States
Publisher Springer New York LLC
Collection year 2011
Language eng
Abstract Heavy metal bioaccumulation models are important for interpreting water quality data, predicting bioaccumulation in organisms, and investigating the provenance of contaminants. To date they have been predominantly used as single-issue models, under steady-state conditions and in isolation of the biogeochemical processes that control metal bioaccumulation. Models that incorporate these processes would allow a more holistic approach to bioaccumulation modeling and contaminant assessment; however, this has been rarely undertaken, probably because it requires the integration of inter-disciplinary areas. In this study, we have developed such a model that integrates three key multi-disciplinary areas (biological, metal speciation, and bioaccumulation processes) and responds to variations in temporal external and internal forcing. Furthermore, spatial context is provided by developing the model within a simple hydrodynamic box-modeling framework. The calibrated model was able to predict with reasonable accuracy the temporal and spatial trends of soft-tissue copper bioaccumulation in a coastal oyster. This exploratory model was also used to highlight the importance of phytoplankton as an important vector of copper uptake dynamics by an oyster, therefore reinforcing the importance of the integrated approach. Finally, our model provides a framework for greater application beyond this specific example such as in the areas of waterway restoration, which has been shown to be an important area of ecological and environmental research. © 2010 Springer Science+Business Media, LLC.
Keyword Bioaccumulation
Heavy metals
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Faculty of Science Publications
Official 2011 Collection
School of Biological Sciences Publications
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Citation counts: TR Web of Science Citation Count  Cited 7 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 5 times in Scopus Article | Citations
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Created: Sun, 12 Dec 2010, 00:09:15 EST