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    • Light Experiment data - Snake River sockeye salmon captive propagation

    Metadata Updated: May 24, 2025

    In the early 1990s, Redfish Lake sockeye salmon from the Sawtooth Basin in Idaho were on the brink of extinction, and they were listed as endangered under the US Endangered Species Act in 1991. To prevent extinction, a gene rescue captive broodstock program was established for the stock that consisted of taking most of the remaining gene pool into captive culture at specialized conservation hatcheries at the Manchester Research Station and the Idaho Department of Fish and Game Eagle Hatchery.

    Efforts through the decade of the 1990s consisted of developing techniques for successful culture of sockeye salmon to adulthood, establishing rearing and spawning protocols to ensure preservation of stock diversity, and habitat enhancement at the rearing lakes. In the early 2000s, the program began to include a demographic focus to boost the population through rearing and release of enough juveniles to produce some adult returns. For the last few years, NWFSC eyed egg production has resulted in over 150,000 smolts being released into the Stanley basin annually for recovery, with plans to increase NWFSC eyed egg production to support release of half a million smolts in the Stanley Basin by 2017. In 2011, and for the fourth year in a row, record numbers of sockeye adults have returned to their native home in Idaho. This work collected data on the length, weight, and reproductive characteristics of sockeye salmon reared in outside and inside tanks.

    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) January 1, 2012 (creation), January 29, 2018 (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) January 1, 2012 (creation), January 29, 2018 (publication)
    Responsible Party (Point of Contact, Custodian)
    Contact Email
    Guid gov.noaa.nmfs.inport:17948
    Access Constraints Cite As: Northwest Fisheries Science Center, [Date of Access]: Light Experiment data - Snake River sockeye salmon captive propagation [Data Date Range], https://www.fisheries.noaa.gov/inport/item/17948., Access Constraints: NA
    Bbox East Long -122.5447
    Bbox North Lat 47.579
    Bbox South Lat 47.569
    Bbox West Long -122.5547
    Coupled Resource
    Frequency Of Update
    Harvest Object Id 746197bc-6ed4-47f1-b4fd-286945987f96
    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 Written in daily log and initial and final sampling sheets.
    Metadata Language eng
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-122.5547, 47.569], [-122.5447, 47.569], [-122.5447, 47.579], [-122.5547, 47.579], [-122.5547, 47.569]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 2013-10-01
    Temporal Extent End 2014-04-30

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