| Abstract: | The authors examined relations between mercury concentrations in walleyes Stizostedion vitreum and the characteristics of clear-water Wisconsin lakes, which spanned a broad range of pH values (5.0-8.1) and acid- neutralizing capacities (-9 to 1,017 mu eq/L). Total concentrations of mercury in axial muscle tissue of walleyes (total length, 25-56 cm) varied from 0.12 to 1.74 mu g/g wet weight. Concentrations were greatest in fish from the eight lakes with pH less than 7.0; concentrations in these fish equaled or exceeded 0.5 mu g/g in 88% of the samples analyzed and 1.0 mu g/g in 44%. In the five lakes with pH of 7.0 and above, concentrations exceeded 0.5 mu g/g in only 1 of 21 walleyes. Multiple regression revealed that lake pH and total length of fish accounted for 69% of the variation in mercury concentration in walleyes. Regression models with total length and either waterborne calcium or acid-neutralizing capacity as independent variables accounted for 67% of the variation in concentration. |
| Genre: | Article |
| ProdID: | 1003174 |
| Citation Author: | Wiener, J. G.; Martini, R. E.; Sheffy, T. B.; Glass, G. E. |
| Citation Contributing Office: | Upper Midwest Environmental Sciences Center |
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| Citation End Page: | 870 |
| Citation Issue: | 5 |
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| Citation Language: | English |
| Citation Larger Work Title: | Transactions of the American Fisheries Society |
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| Citation Number Of Pages: | 9 |
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| Citation Phsyical Description: | pp. 862-870 |
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| Citation Publisher: | U.S. Fish and Wildlife Service |
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| Citation Search Results Text: | Factors influencing mercury concentrations in walleyes in northern Wisconsin lakes; 1990; Article; Journal; Transactions of the American Fisheries Society; Wiener, J. G.; Martini, R. E.; Sheffy, T. B.; Glass, G. E. |
| Citation Start Page: | 862 |
| Citation Volume: | 119 |
| Citation Year: | 1990 |
| Type: | citation/reference |
| Text: | Factors influencing mercury concentrations in walleyes in northern Wisconsin lakes; 1990; Article; Journal; Transactions of the American Fisheries Society; Wiener, J. G.; Martini, R. E.; Sheffy, T. B.; Glass, G. E. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Mon, 1 Jan 1990 00:00 -0600 |
| Publisher: | U.S. Fish and Wildlife Service |
