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Santa Ana River Native Fish Population and Habitat Data, Santa Ana River, California, 2025

Published by U.S. Geological Survey | Department of the Interior | Catalog Last Checked: May 05, 2026 at 08:52 PM | Dataset Last Updated: January 07, 2026 at 12:00 AM
This dataset includes fish population and habitat data collected in 2025 to support development of the upper Santa Ana River Habitat Conservation Plan for the Santa Ana Sucker (Catostomus santaanae) and the Arroyo Chub (Gila orcuttii) in the Santa Ana River, California.

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