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    • Pinniped Monitoring for the San Francisco Bay Area Network: 1997-2023 - Data Package

    Metadata Updated: November 2, 2024

    Within the order Carnivora, the Pinnipedia sub-order is a group of marine mammals that includes sea lions, fur seals, true seals, and walruses. Pinnipeds are keystone species who serve as excellent indicators of marine ecosystem health because they respond quickly to changing oceanic conditions. Conservation concerns include effects of climate change, human disturbance, oil spills, fishing activities (operational and biological), natural and anthropogenically enhanced toxic algal blooms, preservation of haul out habitats, biomagnified contaminants, and disease.

    Monitoring focuses on the two numerically dominant pinniped species that breed, haul out, and molt in San Francisco Bay Area Network (SFAN) parks: the Pacific Harbor Seal (Phoca vitulina richardii) and Northern Elephant Seal (Mirounga angustirostris). This information contributes significantly to the regional and stock-wide understanding of these species required under the Marine Mammal Protection Act of 1972. Ancillary data on other pinniped species are collected concurrently, but are not the primary targets of this monitoring protocol.

    Monitoring is performed annually at two SFAN parks: Point Reyes National Seashore (PORE) and Golden Gate National Recreation Area (GOGA). Objectives are to 1) determine the long-term trends in population size and seasonal distribution of seal populations at primary sites in the SFAN parks during the breeding and molt seasons, 2) determine long-term trends in reproductive success of seals through annual estimates of pup production at PORE and GOGA, and 3) determine the long-term trends in sources, frequency, and level of effects of natural and anthropogenic disturbances on seal haul out use and productivity.

    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.

    Downloads & Resources

    References

    https://irma.nps.gov/DataStore/Reference/Profile/2303620

    Dates

    Metadata Created Date November 2, 2024
    Metadata Updated Date November 2, 2024

    Metadata Source

    Harvested from DOI EDI

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date November 2, 2024
    Metadata Updated Date November 2, 2024
    Publisher National Park Service
    Maintainer
    @Id http://datainventory.doi.gov/id/dataset/910b978f76aeb00344b8635b6a4173c5
    Identifier NPS_DataStore_2303620
    Data First Published 2024-09-05T12:00:00Z
    Data Last Modified 2024-09-05
    Category Data Package
    Public Access Level public
    Bureau Code 010:24
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://datainventory.doi.gov/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
    Data Quality True
    Harvest Object Id cc857626-f887-47b9-9f28-152085759269
    Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
    Harvest Source Title DOI EDI
    Homepage URL https://irma.nps.gov/DataStore/Reference/Profile/2303620
    Old Spatial -123.451332,37.2321968,-122.033035,38.70537
    Program Code 010:118, 010:119
    Publisher Hierarchy White House > U.S. Department of the Interior > National Park Service
    Related Documents https://irma.nps.gov/DataStore/Reference/Profile/2303620
    Source Datajson Identifier True
    Source Hash a87df26b317b2a9c8429de45d4999531cdf6dac632cd42810c4fd8632daf2dae
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -123.451332, 37.2321968, -123.451332, 38.70537, -122.033035, 38.70537, -122.033035, 37.2321968, -123.451332, 37.2321968}
    Temporal 1997-10-13T12:00:00Z/2023-07-26T12:00:00Z

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