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Columbia-Pacific Northwest Region Invasive Mussel Early Detection Sampling Geospatial Data

Published by Bureau of Reclamation | Department of the Interior | Metadata Last Checked: January 06, 2026 | Last Modified: 2021-11-16T21:43:59Z
Geospatial sampling data for early detection of invasive dreissenid (quagga and zebra) mussels. Sampling locations and sampling dates are included. Geographic sampling locations are defined as encompassing a 200 meter radius surrounding the reference point. Samples were collected using plankton tow nets, and were analyzed by Reclamation's C-PN Regional Soil and Water Laboratory for evidence of dreissenid mussels.

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