Habitat and weather changes, and introductions of non-native fishes have shifted the fish communities of the watershed. The St. Croix fish have proven remarkably resilient. Our fish population remains one of the most diverse in the Upper Midwest. But change is coming and the St. Croix watershed will likely look very different in 50 years.

Join Dr. John Lyons, the Curator of Fishes at the University of Wisconsin Zoological Museum in Madison, to learn about how climate and other changes are affecting the fish in our watershed.