NDLI: Towards an Integrated Ecosystem-Based Bioaccumulation and Metal Speciation Model

Content Provider	Springer Nature Link
Author	Richards, Russell G. Chaloupka, Milani Tomlinson, Rodger
Copyright Year	2010
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.
Starting Page	1303
Ending Page	1318
Page Count	16
File Format	PDF
ISSN	14329840
Journal	Ecosystems
Volume Number	13
Issue Number	8
e-ISSN	14350629
Language	English
Publisher	Springer-Verlag
Publisher Date	2010-10-26
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	bioaccumulation oysters copper-speciation heavy metals ecosystem model Moreton Bay restoration Nature Conservation Geoecology/Natural Processes Environmental Management Zoology Plant Sciences Ecology
Content Type	Text
Resource Type	Article
Subject	Ecology Environmental Chemistry Ecology, Evolution, Behavior and Systematics

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