Kenan Professor of Marine and Environmental Sciences

Flathead Lake Biological Station of the U of Montana

Killam Memorial Professor of Ecology, University of Alberta

Distinguished Senior Scientist, Cary Institute of Ecosystem Studies

Queen's University, Distinguished University Professor

Professor, University of California, Santa Barbara

Professor, Limnology, Uppsala University

Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB) & TU Berlin

Senckenberg Gesellschaft für Naturforschung & Goethe Universität Frankfurt

University of Minnesota, Minnesota Sea Grant Program, Large Lakes Observatory