The Wyoming Department of Health and the Wyoming Game and Fish Department are warning residents to consider mercury levels in the fish they eat, including those caught in state waters.

While fish is good for your heart and brain, some fish contain high levels of mercury that pose a genuine health rise, said state health officer Dr. Wendy Braund in a press release.

Officials issued a general mercury advisory in Wyoming a few years ago and the department is issuing more specific mercury-related advice and information now. Mercury can be particularly dangerous to women who are pregnant, might become pregnant or are nursing and children under 15. The updated information is in the newest fishing regulations booklet.

Health and fisheries officials do not want anglers to stop fishing, according to the release.

Mercury contamination increases as fish grow larger and older, according to the release. As a general rule, keep smaller fish for eating. Rainbow and cutthroat trout and kokanee salmon contain less mercury than species that prey primarily on other fish such as walleye brown trout, lake trout, catfish and burbot.

Mercury is naturally occurring and some soil and geologic formations have higher levels of mercury. Other sources include atmospheric mercury found in industrial and energy production.

For more information on specific recommendations, go to



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