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Browse more than 160,000 publications authored by our scientists over the past 100+ year history of the USGS.  Publications available are: USGS-authored journal articles, series reports, book chapters, other government publications, and more.

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We are focused on some of the most significant issues society faces, and our science is making a substantial contribution to the well-being of the Nation and the world. Learn more about the major topics our research covers and the programs focused on those topics.

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Filter Total Items: 175531

Groundwater and surface-water interactions in the Lower Duwamish Waterway, Seattle, Washington Groundwater and surface-water interactions in the Lower Duwamish Waterway, Seattle, Washington

The U.S. Geological Survey (USGS), in cooperation with the Washington State Department of Ecology (Ecology), conducted a study to describe the current understanding of the regional groundwater system of the lower Duwamish River valley and groundwater and surface-water interactions in the lower Duwamish Waterway. The lower Duwamish Waterway is the final 5-mile (mi) reach of the Duwamish...
Authors
Jackson N. Mitchell, Kathleen E. Conn
By
Water Resources Mission Area, Pacific Islands Water Science Center, Washington Water Science Center

Hormetic and transcriptomic responses of the toxic alga Prymnesium parvum to glyphosate Hormetic and transcriptomic responses of the toxic alga Prymnesium parvum to glyphosate

Growth of the toxic alga Prymnesium parvum is hormetically stimulated with environmentally relevant concentrations of glyphosate. The mechanisms of glyphosate hormesis in this species, however, are unknown. We evaluated the transcriptomic response of P. parvum to glyphosate at concentrations that stimulate maximum growth and where growth is not different from control values, the zero...
Authors
Ricardo A. Chávez Montesa, Mousumi A. Mary, Rakib H. Rashel, Mohamed Fokar, Luis Herrera-Estrella, Damar Lopez-Arredondo, Reynaldo Patino
By
Cooperative Research Units

Using environmental DNA to assess the response of steelhead/Rainbow Trout and Coastrange Sculpin populations to postfire debris flows in coastal streams of Big Sur, California Using environmental DNA to assess the response of steelhead/Rainbow Trout and Coastrange Sculpin populations to postfire debris flows in coastal streams of Big Sur, California

Objective Debris flows are among the most extreme disturbances to streams and are predicted to become more frequent under climate change. We assessed the response of steelhead Oncorhynchus mykiss (anadromous Rainbow Trout)/Rainbow Trout (hereafter, collectively referred to as O. mykiss) and Coastrange Sculpin Cottus aleuticus populations to major postfire debris flows in two small...
Authors
David E. Rundio, Brian C. Spence, Dorothy M. Chase, Carl O. Ostberg
By
Ecosystems Mission Area, Western Fisheries Research Center

Likely ferromagnetic minerals identified by the Perseverance rover and implications for future paleomagnetic analyses of returned Martian samples Likely ferromagnetic minerals identified by the Perseverance rover and implications for future paleomagnetic analyses of returned Martian samples

Although Mars today does not have a core dynamo, magnetizations in the Martian crust and in meteorites suggest a magnetic field was present prior to 3.7 billion years (Ga) ago. However, the lack of ancient, oriented Martian bedrock samples available on Earth has prevented accurate estimates of the dynamo's intensity, lifetime, and direction. Constraining the nature and lifetime of the...
Authors
M.N. Mansbach, T.V. Kizovski, E. L. Scheller, T. Bosak, L. Mandon, B. Horgan, R.C. Wiens, C.D.K. Herd, S. Sharma, J.R. Johnson, Travis S.J. Gabriel, O. Forni, B.P. Weiss
By
Natural Hazards Mission Area, Astrogeology Science Center

Physics-based forecasts of eruptive vent locations at calderas Physics-based forecasts of eruptive vent locations at calderas

Constraining stresses in the Earth's crust in volcanic regions is critical for understanding many mechanical processes related to eruptive activity. Dike pathways, in particular, are shaped by the orientation of principal stress axes. Therefore, accurate models of dike trajectories and future vent locations rely on accurate estimates of stresses in the subsurface. This work presents a...
Authors
Lorenzo Mantiloni, Eleanora Rivalta, Kyle R. Anderson, Timothy W. Davis, Luigi Passarelli
By
Volcano Hazards Program, Volcano Science Center

A guide to environmental DNA extractions for non-molecular trained biologists, ecologists, and conservation scientists A guide to environmental DNA extractions for non-molecular trained biologists, ecologists, and conservation scientists

Ecologists, biologists, and conservation scientists are increasingly interested in the use of environmental DNA (eDNA) data for research and potentially decision-making. While commercial DNA extraction kits are typically user-friendly and accessible, they may fail to deliver the desired results with inherently complex eDNA samples, necessitating protocol optimization or educated...
Authors
Jessica Marie Rieder, Eliane Jemmi, Margaret Hunter, Irene Adrian-Kalchhauser
By
Ecosystems Mission Area, Wetland and Aquatic Research Center
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