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Fox River walleye mercury isotope data

Published by U.S. Geological Survey | Department of the Interior | Metadata Last Checked: January 27, 2026 | Last Modified: 2020-08-20T00:00:00Z
Adult walleye were caught in Fox River (Wisconsin) during April 2014. Age-0 walleye were caught in Fox River during October 2014. Total length, weight, age, and proportion of weight represented by water were determined for each of the walleye. Whole-fish homogenates were prepared during 2014-2015 and during 2017. Total mercury (HgT) concentration, methylmercury (MeHg) concentration, and mercury (Hg) isotope ratios were determined in the homogenates during 2014-2015 and during 2017-2018. All mercury determinations were made at the USGS Mercury Research Laboratory in Middleton, Wisconsin.

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Complete Metadata

bureauCode 
[
  "010:12"
]
identifier http://datainventory.doi.gov/id/dataset/USGS_5c091bbfe4b0815414d0bc39
spatial -88.6816, 44.3081, -87.1436, 45.5525
theme 
[
  "Geospatial"
]

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