Fish in South Dakota lakes and rivers are tested for metals, pesticides, and PCB's as a collaborative effort of the South Dakota Departments of Game, Fish & Parks, Environment & Natural Resources, and Health. The following fish consumption advisories are currently in effect.
North Island Lake, Minnehaha & McCook Counties |
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| Species contaminant |
Healthy adults |
High risk groups |
Children under age 7 |
Walleye |
No more than one 7-oz. meal per week |
No more than one 7-oz. meal per month |
No more than one4-oz. meal per month (12 meals/year) |
Lake Roosevelt, Tripp County |
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| Species contaminant |
Healthy adults |
High risk groups |
Children under age 7 |
Largemouth bass |
No more than one 7-oz. meal per week |
No more than one 7-oz. meal per month |
No more than one4-oz. meal per month |
Lake Hurley, Potter County |
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| Species contaminant |
Healthy adults |
High risk groups |
Children under age 7 |
Largemouth bass |
No more than one 7-oz. meal per week |
No more than one 7-oz. meal per month |
No more than one4-oz. meal per month |
W. Hwy 81/Twin Lakes, Kingsbury County |
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| Species contaminant |
Healthy adults |
High risk groups |
Children under age 7 |
Walleye Northern pike |
No more than one 7-oz. meal per week |
No more than one 7-oz. meal per month |
No more than one4-oz. meal per month |
Bitter Lake, Day County |
|||
| Species contaminant |
Healthy adults |
High risk groups |
Children under age 7 |
Walleye Northern pike |
No more than one 7-oz. meal per week |
No more than one 7-oz. meal per month |
No more than one4-oz. meal per month |
Lake Isabel, Dewey County |
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| Species contaminant |
Healthy adults |
High risk groups |
Children under age 7 |
| Northern pike (fish >25 inches) mercury Largemouth bass |
No more than one 7-oz. meal per week |
No more than one7-oz. meal per month |
No more than one4-oz. meal per month |
NOTE: Regarding fish from freshwater lakes, ponds, and streams where mercury levels are not currently known, the Environmental Protection Agency makes the following recommendation:
If you are pregnant or could become pregnant, are nursing a baby, or if you are feeding a young child, limit consumption of freshwater fish caught by family and friends to one meal per week. For adults one meal is six ounces of cooked fish or eight ounces uncooked fish; for a young child one meal is two ounces cooked fish or three ounces uncooked fish.
In addition, the Food and Drug Administration (FDA) has issued advice on mercury in fish bought from stores and restaurants, which includes ocean and coastal fish as well as other types of commercial fish. FDA advises that women who are pregnant or could become pregnant, nursing mothers and young children not eat shark, swordfish, king mackerel, or tilefish. FDA also advises that women of childbearing age and pregnant women may eat an average of 12 ounces of fish purchased in stores and restaurants each week. Therefore, if in a given week you eat 12 ounces of cooked fish from a store or restaurant, then do not eat fish caught by your family or friends that week. This is important to keep the total level of methylmercury contributed by all fish at a low level in your body.
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