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    • Pup production of the California Stock of northern fur seals from 1969 to 2023 (NCEI Accession 0303532)

    Metadata Updated: December 1, 2025

    The Marine Mammal Laboratories' California Current Ecosystem Program (AFSC/NOAA) in collaboration with Point Blue Conservation Science initiated long-term studies to determine pup abundance of the California Stock of northern fur seals. The California Stock is comprised of northern fur seals inhabiting San Miguel Island (and Castle Rock, and islet ~1 km northwest) and the Farallon Islands (specifically, Southeast Island) off California. Pup production is the sum of the numbers of live pups and dead pups for a given pupping season. This in turn is used as index to estimate total population abundance. Population abundance is vital to knowing the status of a particular stock or the entire species, as well as knowing what factors are driving population trends. Metadata and datasets corresponding to these studies are reported in Stock Assessment Reports (SAR) for the U.S. Congress and other stakeholders.

    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 2025-11-25T13:09:42Z
    Metadata Created Date May 1, 2025
    Metadata Updated Date December 1, 2025
    Reference Date(s) April 30, 2025 (publication)
    Frequency Of Update asNeeded

    Metadata Source

    Harvested from NOAA/NESDIS/ncei/accessions

    Other Data Resources

    Graphic Preview

    Preview graphic

    Additional Metadata

    Resource Type Dataset
    Metadata Date 2025-11-25T13:09:42Z
    Metadata Created Date May 1, 2025
    Metadata Updated Date December 1, 2025
    Reference Date(s) April 30, 2025 (publication)
    Responsible Party (Point of Contact)
    Contact Email
    Guid gov.noaa.nodc:0303532
    Access Constraints Cite as: Orr, Anthony J.; Warzybok, Pete; Tietz, James R. (2025). Pup production of the California Stock of northern fur seals from 1969 to 2023 (NCEI Accession 0303532). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/xa4y-7q42. Accessed [date]., Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
    Bbox East Long -117
    Bbox North Lat 39
    Bbox South Lat 32
    Bbox West Long -124
    Coupled Resource
    Frequency Of Update asNeeded
    Graphic Preview Description Preview graphic
    Graphic Preview File https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:0303532
    Graphic Preview Type PNG
    Harvest Object Id a4775187-e1bb-4d7e-b65a-cbb05f7068dc
    Harvest Source Id c084a438-6f6b-470d-93e0-16aeddb9f513
    Harvest Source Title NOAA/NESDIS/ncei/accessions
    Licence accessLevel: Public
    Lineage
    Metadata Language eng
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-124.0, 32.0], [-117.0, 32.0], [-117.0, 39.0], [-124.0, 39.0], [-124.0, 32.0]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 1969-05-01
    Temporal Extent End 2023-09-30

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