Walleye are culturally, ecologically, and recreationally important throughout much of their range. In Wisconsin, walleye represent one of the most-sought sport fish and in the Ceded Territory, support a mixed fishery consisting of a tribal spear fishery and a recreational hook-and-line fishery. State and tribal agencies dedicate significant resources toward managing walleye fisheries each year. One apparent challenge to maintenance and management of sustainable walleye fisheries is the declining abundance of walleye in some lakes that previously supported naturally recruiting populations. What are potential reasons for declining walleye populations and what actions can be taken to mitigate the declines? Dan Dembkowski, a research scientist with the Wisconsin Cooperative Fishery Research Unit at UW-Stevens Point, will share what fisheries professionals have learned about walleye through over a decade of research in northern Wisconsin.