Using Carbon, Nitrogen, and Mercury Isotope Values to Distinguish Mercury Sources to Alaskan Lake Trout

This data release includes results of raw water, soil, seston, and fish tissue samples collected from lakes in southwestern Alaska between 2011 and 2016. Specifically, these data include total mercury and methylmercury concentrations in water, size-sieved seston, and particulate matter of 13 remote lakes. Additionally, these data include soil and volcanic ash measurements from the surrounding watersheds. Finally, these data include energetic profiling of seston, lake trout, and sockeye salmon as well as mercury isotope measurements of the fishes. These data are important when interpreting mercury mass balance flows and bioavailability to the food web and are a part of an associated journal article published in Environmental Science and Technology Letters (https://doi.org/10.1021/acs.estlett.2c00096).

This dataset is associated with the following publication: Lepak, R., J. Ogorek, K. Bartz, S. Janssen, M. Tate, Y. Runsheng, J. Hurley, D. Young, C. Eagles-Smith, and D. Krabbenhoft. Using Carbon, Nitrogen, and Mercury Isotope Values to Distinguish Mercury Sources to Alaskan Lake Trout. Environmental Science & Technology Letters. American Chemical Society, Washington, DC, USA, 9(4): 312-319, (2022).

Data and Resources

Field Value
accessLevel public
bureauCode {020:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
identifier https://doi.org/10.23719/1526403
license https://pasteur.epa.gov/license/sciencehub-license-non-epa-generated.html
modified 2022-03-18
programCode {020:000}
publisher U.S. EPA Office of Research and Development (ORD)
publisher_hierarchy U.S. Government > U.S. Environmental Protection Agency > U.S. EPA Office of Research and Development (ORD)
references {https://doi.org/10.1021/acs.estlett.2c00096}
resource-type Dataset
source_datajson_identifier true
source_hash 630b8cf0add087d1cbc1881dfce52c3ae3606d97
source_schema_version 1.1
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • AmeriGEO
  • AmeriGEOSS
  • CKAN
  • GEO
  • GEOSS
  • National
  • North America
  • United States
  • alaska
  • climate-change
  • isotope
  • lake-trout
  • mercury
  • volcano
isopen False
license_id other-license-specified
license_title other-license-specified
maintainer Ryan Lepak
maintainer_email lepak.ryan@epa.gov
metadata_created 2025-09-23T15:07:25.349489
metadata_modified 2025-09-23T15:07:25.349495
notes This data release includes results of raw water, soil, seston, and fish tissue samples collected from lakes in southwestern Alaska between 2011 and 2016. Specifically, these data include total mercury and methylmercury concentrations in water, size-sieved seston, and particulate matter of 13 remote lakes. Additionally, these data include soil and volcanic ash measurements from the surrounding watersheds. Finally, these data include energetic profiling of seston, lake trout, and sockeye salmon as well as mercury isotope measurements of the fishes. These data are important when interpreting mercury mass balance flows and bioavailability to the food web and are a part of an associated journal article published in Environmental Science and Technology Letters (https://doi.org/10.1021/acs.estlett.2c00096). This dataset is associated with the following publication: Lepak, R., J. Ogorek, K. Bartz, S. Janssen, M. Tate, Y. Runsheng, J. Hurley, D. Young, C. Eagles-Smith, and D. Krabbenhoft. Using Carbon, Nitrogen, and Mercury Isotope Values to Distinguish Mercury Sources to Alaskan Lake Trout. Environmental Science & Technology Letters. American Chemical Society, Washington, DC, USA, 9(4): 312-319, (2022).
num_resources 1
num_tags 14
title Using Carbon, Nitrogen, and Mercury Isotope Values to Distinguish Mercury Sources to Alaskan Lake Trout