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    • Lake trout (Salvelinus namaycush) egg density estimates in Lake Ontario from egg pumping, 2020, 2024

    Metadata Updated: September 12, 2025

    This data set contains Lake Trout (Salvelinus namaycush) egg density estimates obtained from suction sampling across five locations in Lake Ontario. These data were collected in October-November 2020 and November-December 2024 as part of an effort to identify Lake Trout spawning locations and habitat preference in Lake Ontario. Additional information on habitat characteristics at each sampling site was collected using an underwater camera and was classified using the Coastal and Marine Ecological Classification Standard (CMECS). The two files in this data set include a comma delimited machine-readable file (*.csv) containing the Lake Trout egg density estimates and substrate classification data, and an XML file containing the metadata information.

    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 12, 2025
    Metadata Updated Date September 12, 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 12, 2025
    Publisher U.S. Geological Survey
    Maintainer
    Identifier http://datainventory.doi.gov/id/dataset/usgs-67e6f22ed34ee3695ea1d8e1
    Data Last Modified 2025-07-11T00:00:00Z
    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 d4f803e6-6a28-4cf2-ad1b-2403e06abe2a
    Harvest Source Id 2b80d118-ab3a-48ba-bd93-996bbacefac2
    Harvest Source Title DOI USGS DCAT-US
    Metadata Type geospatial
    Old Spatial -79.7700, 43.1800, -76.1200, 44.2900
    Source Datajson Identifier True
    Source Hash 7589d7e371552b3bde02b005cf6e612dd4a39066d9beaee97f327cdc76580718
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -79.7700, 43.1800, -79.7700, 44.2900, -76.1200, 44.2900, -76.1200, 43.1800, -79.7700, 43.1800}

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