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    • Survival estimates - Survival estimates for the passage of juvenile salmonids through Snake and Columbia River dams and reservoirs

    Metadata Updated: October 19, 2024

    This BPA-funded study provides estimates of smolt survival and travel time through individual reaches and reaches combined in the Snake and Columbia Rivers hydropower system each year. Smolts are PIT tagged at Lower Granite Dam and combined with smolts tagged by other researchers in the basin to estimate survival and travel time. This project also operates the PIT tag trawl in the Columbia River estuary which provides detection data necessary to estimate survival through the final reach to below Bonneville Dam. This information is used to help the region focus on where passage improvements are needed to improve survival and travel time through the Federal Columbia River Power System (FCRPS). Annual reach survival estimates.

    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.

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    Dates

    Metadata Date February 29, 2024
    Metadata Created Date October 19, 2024
    Metadata Updated Date October 19, 2024
    Reference Date(s) (publication)
    Frequency Of Update

    Metadata Source

    Harvested from NMFS NWFSC

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Date February 29, 2024
    Metadata Created Date October 19, 2024
    Metadata Updated Date October 19, 2024
    Reference Date(s) (publication)
    Responsible Party (Point of Contact, Custodian)
    Contact Email
    Guid gov.noaa.nmfs.inport:20567
    Access Constraints Cite As: Northwest Fisheries Science Center, [Date of Access]: Survival estimates - Survival estimates for the passage of juvenile salmonids through Snake and Columbia River dams and reservoirs [Data Date Range], https://www.fisheries.noaa.gov/inport/item/20567., Access Constraints: NA
    Bbox East Long -123.3606
    Bbox North Lat 46.1575
    Bbox South Lat 46.1475
    Bbox West Long -123.3706
    Coupled Resource
    Frequency Of Update
    Harvest Object Id dad5818f-fe58-4c6b-8dbd-fa6a5a870c26
    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 Raw tagging and detection data for PIT tags is obtained from the PTAGIS database. These data are converted into detection histories for calculation of survival and detection probability estimates using mark-recapture models. Travel times are also calculated.
    Metadata Language eng
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-123.3706, 46.1475], [-123.3606, 46.1475], [-123.3606, 46.1575], [-123.3706, 46.1575], [-123.3706, 46.1475]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 1993-04-09
    Temporal Extent End 2014-12-31

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