Walleye populations are declining in Wisconsin lakes

Walleye (Sander vitreus; Figure 1) are one of the most sought-after fish among recreational anglers in the Upper Midwest. Prized for their mild flavor and flaky texture, they are a […]
eDNA: An exciting new tool for fisheries research
Studying aquatic organisms is challenging. Unlike counting sheep in a pasture, counting fish in the water is much more difficult. The most effective method varies considerably among species. Fisheries scientists […]
Having trouble figuring out what a fish has eaten? Just use DNA!

Ever wonder how scientists figure out what fish eat – or why they are even curious about fish diets? One answer to these questions comes from a popular sport fishery […]
Baited video cameras and environmental DNA create better picture of fish community

Fish can be tricky to count. Many fish are sensitive to disturbances in their surrounding environment, such as from an approaching diver conducting surveys, so care must be taken to […]