The Walleye Forage System: Ecology, Energy Pathways, and Seasonal Walleye Forage Movement in Pool 4 Paperback – February 22, 2026

Why do walleyes appear in certain places—and disappear from others?The Walleye Forage System reveals the ecological forces that drive walleye movement, feeding behavior, and seasonal distribution in Pool 4 of the Upper Mississippi River and Lake Pepin.Instead of focusing on fishing spots, this book explains the forage-driven energy pathways that control where walleyes live and hunt. By understanding how plankton, baitfish, benthic prey, wind, and river current interact, anglers can begin to predict fish location rather than simply react to changing conditions.Drawing on fisheries research and more than thirty years of observation on the river, Jeremy J. Frigo presents a practical ecological framework for understanding one of the Midwest’s most famous walleye fisheries.Inside you’ll learn:• How forage species organize the entire walleye map• Why wind and current redistribute baitfish and predators• When walleyes suspend over basin water instead of structure• The seasonal forage calendar that drives fish movement• Why some years fish behave completely differently than othersFor anglers, fisheries enthusiasts, and anyone interested in freshwater ecology, The Walleye Forage System offers a new way to understand how large-river predator–prey systems actually work. Read more