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    • Humpback chub (Gila cypha) and mean daily water temperature data, western Grand Canyon - 2000 to 2016

    Metadata Updated: October 30, 2025

    These data were compiled to examine patterns of humpback chub (Gila cypha) in western Grand Canyon from just below Havasu Creek at river kilometer (rkm) 253 (Lees Ferry is rkm 0) downriver to Pearce Ferry at rkm 451. These data represent mean daily water temperatures in degrees Celsius from two USGS gaging locations (2005-2016), catches of individual humpback chub in hoop nets (2005-2016), total lengths of individual humpback chub captured in hoop nets during 2014, 2015 and 2016, and the effort (number of seine hauls) and catch of humpback chub in seines (2000-2016) in the Colorado River. These data were collected by research staff from the Grand Canyon, Monitoring & Research Center, Southwest Biological Science Center during field observations from 2000 to 2016. These data can be used to identify trends in humpback chub catch rates in the mainstem Colorado River downstream of Glen Canyon Dam in Grand Canyon. Long-term monitoring data from both hoop nets and seining was used to document likely local recruitment and population expansion of humpback chub in western Grand Canyon.

    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 14, 2025
    Metadata Updated Date October 30, 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 30, 2025
    Publisher U.S. Geological Survey
    Maintainer
    Identifier http://datainventory.doi.gov/id/dataset/usgs-59f7a32ce4b063d5d3086c94
    Data Last Modified 2022-08-08T00:00:00Z
    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 aa6706b8-6bf1-48d7-8761-4f636ef0e36a
    Harvest Source Id 2b80d118-ab3a-48ba-bd93-996bbacefac2
    Harvest Source Title DOI USGS DCAT-US
    Metadata Type geospatial
    Old Spatial -114.02379, 35.740126, -111.476798, 36.965854
    Source Datajson Identifier True
    Source Hash 73460dcac0d1b2b4786df16efdd33dfb0d3b5b4c64397f194bc529cfe15a57ee
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -114.02379, 35.740126, -114.02379, 36.965854, -111.476798, 36.965854, -111.476798, 35.740126, -114.02379, 35.740126}

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