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    • Analyte concentrations and stable isotopes in fish tissue collected across the upper Colorado River Basin in 2016 and 2017

    Metadata Updated: September 17, 2025

    These data were compiled to examine analyte concentrations, including mercury and selenium, and stable isotopes in native and non-native fish across rivers in the Upper Colorado River Basin. Data were collected in 2016 and 2017. Tissue samples were collected as whole-body or muscle plugs (biopsies). Tissue samples were analyzed for stable isotopes in 772 samples, for selenium and 54 other analytes in 646 samples, for total mercury in 379 samples, and for methylmercury in 337 samples. The data tables contain raw concentration data, as well as standardized conversions for differences based on tissue type (whole-body or muscle) and dry or wet weight.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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    Dates

    Metadata Created Date September 12, 2025
    Metadata Updated Date September 17, 2025

    Metadata Source

    Harvested from DOI USGS DCAT-US

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date September 12, 2025
    Metadata Updated Date September 17, 2025
    Publisher U.S. Geological Survey
    Maintainer
    Identifier http://datainventory.doi.gov/id/dataset/usgs-66ec7a95d34e0606a9dc02c3
    Data Last Modified 2025-04-15T00:00:00Z
    Category geospatial
    Public Access Level public
    Bureau Code 010:12
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://ddi.doi.gov/usgs-data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id 279fad96-1a6d-4d5d-9379-07e7b68606a1
    Harvest Source Id 2b80d118-ab3a-48ba-bd93-996bbacefac2
    Harvest Source Title DOI USGS DCAT-US
    Metadata Type geospatial
    Old Spatial -110.3247, 37.8575, -106.5015, 40.8969
    Source Datajson Identifier True
    Source Hash ad3507e25e012fbb06777e384f63657d685cdb84da6e6a5b9e55b6b4749d8c17
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -110.3247, 37.8575, -110.3247, 40.8969, -106.5015, 40.8969, -106.5015, 37.8575, -110.3247, 37.8575}

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