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Publications

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.

Filter Total Items: 175939

Low streamflows in Massachusetts: Variability over space and time and relations with climatic and basin variables Low streamflows in Massachusetts: Variability over space and time and relations with climatic and basin variables

Streamflows in Massachusetts have set record lows in recent years despite generally wetter conditions than during the drought of the 1960s, and the reasons for this are not known. To analyse potential drivers of low streamflows in Massachusetts, six low-flow metrics were computed at 107 streamgages. These metrics represent low-flow magnitude, magnitude normalized to median flows, and...
Authors
Catherine A. Chamberlin, Glenn Hodgkins

Early Miocene volcanic rocks and associated tectonics, Lava Hills and southern Bristol Mountains, California Early Miocene volcanic rocks and associated tectonics, Lava Hills and southern Bristol Mountains, California

Volcanic rocks of latest Oligocene to early Miocene age form an east-west belt across part of the central eastern Mojave Desert from the Whipple Mountains on the east to the Rosamond Hills on the west. We term this the central belt because it is separated from northern and southern belts by swaths with no volcanic rocks. Limited geochronologic data indicate that much of the belt is...
Authors
David M. Miller, Janet Harvey, David C. Buesch, Phillip B. Gans

Small cumulative survival costs of enzootic disease could suppress long-term population size Small cumulative survival costs of enzootic disease could suppress long-term population size

Fungal pathogens can cause epizootics that result in widespread mortality and rapid population declines in some species. However, even in the absence of high disease-induced mortality, enzootic mycoses could have large-scale impacts on host population dynamics. Here, we examined the effects of ophidiomycosis, an enzootic fungal disease, on a Louisiana snake community over a 3-year period...
Authors
Brad M. Glorioso, Graziella V. DiRenzo, Jeffrey M. Lorch, Brittany A. Mosher, David A.W. Miller, Evan H. Campbell Grant, Hardin Waddle

Identifying overwintering habitat of silver and bighead carp in the lower Mississippi River: Implications for harvesting and population reduction Identifying overwintering habitat of silver and bighead carp in the lower Mississippi River: Implications for harvesting and population reduction

A total of 41 sites along a 58 mi reach of the Lower Mississippi River (LMR) were surveyed during winter 2022 for invasive carp aggregation.* Sites consisting of scallops closest to the dike-vegetated bank interface with deeper, slow-moving water and consistent access back to the main channel were preferred. Carp avoided strong currents, and there was no trend in depth selection other...
Authors
K. Jack Killgore, David Ruppel, Faucheux. Nick, W. Todd Slack, Amanda J.M. Oliver, Josey Lee Ridgway, Jesse Robert Fischer, Robin D. Calfee

Lake Ontario August gillnet survey and lake trout assessment, 2025 Lake Ontario August gillnet survey and lake trout assessment, 2025

Lake Ontario Lake Trout (Salvelinus namaycush) rehabilitation has been assessed with fishery dependent and independent surveys to evaluate program benchmarks and compare observations with management objectives since 1983. These surveys provide information on the abundance, strain composition, and performance of stocked Lake Trout, as well as information on levels of natural recruitment...
Authors
Brian O’Malley, Krystal Dixon, Olivia Margaret Mitchinson, Scott David Stahl, Brian Weidel, Michael J Connerton, Jessica A Goretzke

Fisheries research and monitoring activities of the Lake Erie Biological Station, 2025 Fisheries research and monitoring activities of the Lake Erie Biological Station, 2025

Lake Erie has the most populated watershed of all the Great Lakes and has undergone dramatic anthropogenic changes. Since the 1800s, overexploitation of fish populations, habitat destruction, non-native species proliferation, industrial contamination, and changes in nutrient loading have impacted the fish community including declines in or extirpation of many native species (Regier et al...
Authors
Mark Richard Dufour, Francesco Guzzo, Corbin David Hilling, Branden Eric Kohler, Richard Kraus, Richard Cole Oldham, James J. Roberts, Joseph Schmitt
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