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    • LGR adult trap data - Operation of the adult trap at Lower Granite Dam

    Metadata Updated: May 24, 2025

    This Bonneville Power Administration (BPA) - funded project pays for NOAA staff to operate the adult salmon trap located in the fish ladder at Lower Granite Dam. The trap is operated to provide access to fish for sampling for several NOAA projects as well as other researchers from many agencies. The trap is used for random sampling of adults used in run reconstructions, determining age classes of returning adults, assess injuries from marine mammals, brood stock collection for hatcheries, scale sampling to determine age of ocean entry for fall Chinook, radio tagging of adults, and various other uses. NOAA has operated this trap since it was built in the mid-1970s, with BPA funding beginning in 2006. An annual report is provided to BPA summarizing trap activities. Lower Granite Dam adult trap data.

    Access & Use Information

    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 Date May 15, 2025
    Metadata Created Date October 19, 2024
    Metadata Updated Date May 24, 2025
    Reference Date(s) March 1, 2006 (creation), (publication)
    Frequency Of Update

    Metadata Source

    Harvested from NMFS NWFSC

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Date May 15, 2025
    Metadata Created Date October 19, 2024
    Metadata Updated Date May 24, 2025
    Reference Date(s) March 1, 2006 (creation), (publication)
    Responsible Party (Point of Contact, Custodian)
    Contact Email
    Guid gov.noaa.nmfs.inport:20559
    Access Constraints Cite As: Northwest Fisheries Science Center, [Date of Access]: LGR adult trap data - Operation of the adult trap at Lower Granite Dam [Data Date Range], https://www.fisheries.noaa.gov/inport/item/20559., Access Constraints: NA
    Bbox East Long -117.4231
    Bbox North Lat 46.67
    Bbox South Lat 46.66
    Bbox West Long -117.4331
    Coupled Resource
    Frequency Of Update
    Harvest Object Id 05b54383-ce19-4c73-9e71-8475a6e0e5ec
    Harvest Source Id ba43549f-8268-499d-bec8-91b164cb168f
    Harvest Source Title NMFS NWFSC
    Licence NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose.
    Lineage Data is manually error-checked.
    Metadata Language eng
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-117.4331, 46.66], [-117.4231, 46.66], [-117.4231, 46.67], [-117.4331, 46.67], [-117.4331, 46.66]]]}
    Progress underDevelopment
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 2006-12-01
    Temporal Extent End 2019-12-31

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