The U.S. Environmental Protection Agency, Office of Science and Technology, has released an enhanced version of the aquatic ecosystem simulation model AQUATOX. AQUATOX is a PC-based ecosystem model that predicts the fate of nutrients and organic chemicals in water bodies, as well as their direct and indirect effects on the resident organisms. AQUATOX Release 3 contains many enhancements that increase the realism and utility of the model. The most important enhancements include:
- Capability to represent estuaries at a screening level
- Capability to model multiple linked river and reservoir segments
- Enhanced nutrients analysis, including nutrient release from sediments, daily dissolved oxygen fluctuations, and toxicity from low oxygen and ammonia
- Capability to simulate biological effects of suspended and bedded sediments
- Calculation of biological metrics
- Enhanced sensitivity and uncertainty analyses
- Toxicity data estimation from ICE (Interspecies Correlation Estimation)
- Expanded data management, graphics and statistical analysis
- The software is now open source, meaning that other modelers can customize AQUATOX for their particular application
Visit the AQUATOX web site at http://epa.gov/ost/models/aquatox/ for more information or for downloading the model and its associated documentation.
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