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Quagga and Zebra Mussel Infested Waters [ds2801]

Published by California Department of Fish and Wildlife | State of California | Catalog Last Checked: July 28, 2025 at 06:37 PM | Dataset Last Updated: May 29, 2025 at 04:29 PM
Quagga (Dreissena rostriformis bugensis) and Zebra (Dreissena polymorpha) mussels are highly invasive and easily transported from one waterybody to another. California has an extensive program designed to prevent the spread of these mussels. This program is coordinated by the California Department of Fish and Wildlife (CDFW) Invasive Species Program, within the Habitat Conservation Planning Branch. This data set summarizes the locations of Quagga and Zebra mussel findings within California waterbodies, using data from the U.S. Geological Surveys NAS (Nonindigenous Aquatic Species) database.

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