Fox River walleye mercury isotope data

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.

Data and Resources

Field Value
accessLevel public
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datagov_dedupe_retained 20220721212438
identifier USGS:5c091bbfe4b0815414d0bc39
metadata_type geospatial
modified 20200820
old-spatial {"type": "Polygon", "coordinates": [[[-88.6816, 44.3081], [-88.6816, 45.5525], [ -87.1436, 45.5525], [ -87.1436, 44.3081], [-88.6816, 44.3081]]]}
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash c6f9a559bf63979c3333331004705b371731bf6b
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-88.6816, 44.3081], [-88.6816, 45.5525], [ -87.1436, 45.5525], [ -87.1436, 44.3081], [-88.6816, 44.3081]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • biota
  • ckan
  • fox-river
  • geo
  • geoss
  • green-bay
  • lake-michigan
  • lower-green-bay
  • mercury
  • mercury-contamination
  • national
  • north-america
  • united-states
  • usgs-5c091bbfe4b0815414d0bc39
  • walleye
isopen False
license_id notspecified
license_title License not specified
maintainer Sarah E Janssen
maintainer_email sjanssen@usgs.gov
metadata_created 2025-11-21T14:30:11.016994
metadata_modified 2025-11-21T14:30:11.016998
notes 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.
num_resources 2
num_tags 17
title Fox River walleye mercury isotope data