1. Department of Chemistry, The College of Wooster, Wooster, Ohio 44691, National Water Quality Laboratory, U.S. Geological Survey, Denver, Colorado 80225, U.S. Geological Survey, Iowa City, Iowa 52244, Aquatic Toxicology Laboratory, St. Cloud State University, St. Cloud, Minnesota 56301, U.S. Geological Survey, Boulder, Colorado 80303, U.S. Geological Survey, National Fish Health Research Laboratory, Kearneysville, West Virginia 25430, Department of Integrative Physiology, University of Colorado, Boulder,...