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San Francisco Bay Area Network Pinniped Monitoring Database through field season 2025.

Published by National Park Service | Department of the Interior | Metadata Last Checked: January 07, 2026 | Last Modified: 2025-09-29T00:00:00Z
This dataset contains population size, distribution, reproductive success, and disturbance data on Pacific harbor seal (Phoca vitulina richardii) and northern elephant seals (Mirounga angustirostris) at Golden Gate National Recreation Area and Point Reyes National Seashore during the breeding and molting seasons from 1983-2009 (pre I&M-approved protocol) and 2010-2024 (post I&M-approved protocol) . Elephant seal tag resight data begins in 1983, elephant seal population count data begins in 1997, and harbor seal data begins in 2000.

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