Public Service Assistant, Georgia Sea Grant
Professor, School of Ecology
Professor, Indiana University
Associate Professor, University of Georgia College of Public Health
LakeLab Scientific Coordinator, Leibniz-Institute of Freshwater Ecology
Adjunct Professor, Fundacao Universidade Federal do Rio Grande, Instituto de Oceanografia
Associate Research Scientist, University of Georgia Center for Applied Isotope Studies
Professor, Creighton University
Associate Professor, Northeastern University
Assistant Professor, College of Engineering, University of Georgia
Professor, Tongji University