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    • Densities of Hexagenia mayfly nymphs in western Lake Erie, 1999-2014

    Metadata Updated: March 11, 2025

    Densities of Hexagenia spp. mayfly nymphs by age class are presented from 1999 through 2014. This range is significant in that it includes the year of peak abundance following recovery from ~4 decades of near extirpation (~1960 through the mid-1990s) through a period of decline. This range overlaps with fluctuations in abundance of other potentially relevant species, such as Round Goby and Dreissena spp. mussels. A novelty of these data is the separation of age classes, which provides for potentially novel approaches to assessing mayfly trends.

    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 March 11, 2025
    Metadata Updated Date March 11, 2025

    Metadata Source

    Harvested from DOI EDI

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date March 11, 2025
    Metadata Updated Date March 11, 2025
    Publisher U.S. Geological Survey
    Maintainer
    @Id http://datainventory.doi.gov/id/dataset/38c01258fb0d8edfdb340647c2ef8e26
    Identifier USGS:59b6ec5ce4b08b1644ddf972
    Data Last Modified 20250225
    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://datainventory.doi.gov/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 76e55c10-537c-43f8-a404-5c006e5dbba2
    Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
    Harvest Source Title DOI EDI
    Metadata Type geospatial
    Old Spatial -83.5071,41.3191,-82.4744,42.1
    Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
    Source Datajson Identifier True
    Source Hash b84ca74a38b24b7eb6b04f3a554ac216fed7d69314d33eaf14eef70d9a41066a
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -83.5071, 41.3191, -83.5071, 42.1, -82.4744, 42.1, -82.4744, 41.3191, -83.5071, 41.3191}

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