Fish consumption

Fishing is a favorite form of recreation for Wisconsin anglers, and so is eating the catch. Generally, fish is regarded as a healthy source of nutrition that is low in fat, high in protein, and a good source of beneficial omega-3 fatty acids.

But some contaminants found in water can build up in the bodies of fish--and the humans that eat them--over time. Mercury and PCBs are of greatest concern in Wisconsin waters. Women of child-bearing age, nursing women, and children under 15 are thought to be most at risk of accumulating levels of contaminants that could affect their health. But even these groups can continue to safely enjoy fish by choosing certain species from waters that are less polluted with contaminants.

The Wisconsin Department of Natural Resources regularly monitors fish populations to determine which waters and species may contain higher levels of contaminants. The DNR website contains updated guidance for consumption of fish from Wisconsin waters.