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    • Hydrographic surveys collected to monitor fish spawning reef placements, Detroit and St. Clair Rivers, Michigan, September 13-16, 2021

    Metadata Updated: October 2, 2025

    The U.S Geological Survey conducted hydrographic surveys from September 13-16, 2021 to monitor fish spawning substrate placements (reefs) in the Detroit and St. Clair Rivers, MI. A multibeam echosounder was used from the Great Lakes Science Center research vessel Cisco to collect hydrographic data. These data were used to generate maps of river bottom topography in locations where spawning substrates have been placed. The reefs surveyed in the Detroit River included: Fort Wayne, New (East) Belle Isle, Belle Isle, and Grassy Island. The reefs surveyed in the St. Clair River included: Middle Channel, Pointe Aux Chenes, and Harts Light. The data for each study reach were produced in LAS format supported by most geospatial software.

    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.

    Downloads & Resources

    Dates

    Metadata Created Date September 14, 2025
    Metadata Updated Date October 2, 2025

    Metadata Source

    Harvested from DOI USGS DCAT-US

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date September 14, 2025
    Metadata Updated Date October 2, 2025
    Publisher U.S. Geological Survey
    Maintainer
    Identifier http://datainventory.doi.gov/id/dataset/usgs-63064972d34e3b967a8bd7ae
    Data Last Modified 2025-02-14T00:00:00Z
    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 aad00791-6d00-4b39-8c26-86675b03dc37
    Harvest Source Id 2b80d118-ab3a-48ba-bd93-996bbacefac2
    Harvest Source Title DOI USGS DCAT-US
    Metadata Type geospatial
    Old Spatial -83.6224, 42.0408, -82.1887, 43.0204
    Source Datajson Identifier True
    Source Hash 93049cf48b7e77e71e045cdfb2a444cc6dbcdfa130f2504e1fe413f0d9fbbdd8
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -83.6224, 42.0408, -83.6224, 43.0204, -82.1887, 43.0204, -82.1887, 42.0408, -83.6224, 42.0408}

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