Skip to main content
For news media

John Magnuson

Aquatic ecologist and limnologist, trained in fish and fisheries ecology, taught ecology of fishes and limnology

Professor emeritus, zoology and limnology College of Letters and Science — Home and cell phones available upon request Home page


  • Climate change and its impacts on lakes and streams, especially lake ice and freshwater fishes
  • Long-term dynamics of lakes in the landscape, especially at decadal scales, use of landscape ecology to understand lakes
  • Impacts and dynamics of invasive aquatic species especially exotic crayfish and fishes
  • Thermal ecology of fishes and role of water temperature in the distribution of freshwater and marine fishes


  • A lead author on impacts of climate change on aquatic systems for Intergovernmental Panel on Climate Change reports, 1995 and 2001
  • Hilldale Award in Biological Sciences, UW-Madison, 2000
  • Award of Excellence, American Fisheries Society, 2000
  • Chair, National Research Council committees and publications, e.g., conservation of Pacific salmon, Atlantic bluefin tuna, sea turtles and ecological effects of fishing
  • Founding director of UW-Madison Center for Limnology, 1982 until retirement, 2000