Madison wouldn’t be Madison without its lakes. At least Hilary Dugan — an assistant professor of aquatic biology and ecology at the University of Wisconsin-Madison — thinks so. Dugan works at the Center for Limnology right off of Lake Mendota, tucked away behind a frozen Lakeshore Path next to the Memorial Union. She said people either know exactly where the center is, and what limnology is, or know nothing about it at all.