1. Center for Computational Toxicology and Exposure, Great Lakes Toxicology and Ecology Division, Office of Research and Development, U.S. Environmental Protection Agency, 6201 Congdon Blvd., Duluth, Minnesota 55804, United States
2. USGS Mercury Research Laboratory, Upper Midwest Water Science Center, U.S. Geological Survey, 1 Gifford Pinchot Drive, Madison, Wisconsin 53726, United States
3. Museum of Vertebrates, Department of Ecology and Evolutionary Biology, Cornell University, E145 Corson Hall, Ithaca, New York 14853, United States
4. Department of Natural Resources and the Environment, Cornell University, Fernow Hall, Ithaca, New York 14853, United States