Fish caught in Wisconsin: Federal and State agencies issue advice people should use in limiting how much fish they eat. Limits are lower for many fish for women who are or may become pregnant and children than they are for men. These advisores exist because of mercury and polychlorinated biphenyl (PCB) contaminants found in fish.
Canned and frozen fish sold in stores: The FDA and EPA issue advice about how much store-bought fish (generally ocean-caught; for example salmon, light or white tuna, swordfish, and MANY OTHERS) to eat. Mercury is the contaminant of concern in ocean-caught fish. Click on this link for the most current information: FDA: http://www.fda.gov/bbs/topics/news/2004/NEW01038.html
Information about fish caught from Wisconsin waters, and more information about the contaminants is available at this websites:
WI DNR: http://dnr.wi.gov/fish/consumption/
Information about fish caught from Milwaukee area waters (Lake Michigan, rivers and ponds) is available in pdf format
(click here for the pdf English/Espanol)