Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 9969
Land-cover changes associated with oil and natural-gas production and concentrations of selected constituents in surface-water and streambed-sediment samples collected upstream from and within an area of oil and natural-gas production, south Texas, 2008–1
The extensive development of oil and natural-gas resources in south Texas during the past 10 years has led to questions regarding possible environmental effects of processes associated with oil and natural-gas production, in particular the process of hydraulic fracturing, on water and other natural resources. Part of the lower San Antonio River watershed intersects an area of oil and natural-gas p
Authors
Cassi L. Crow, Stephen P. Opsahl, Diana E. Pedraza, Emily C. Pease, Ross K. Kushnereit
Nutrient enrichment in wadeable urban streams in the piedmont ecoregion of the southeastern United States
The U.S. Geological Survey (USGS) Southeastern Stream Quality Assessment (SESQA) collected weekly samples for nitrogen and phosphorus in 76 wadeable streams in the urbanized Piedmont ecoregion of the Southeastern United States, during April–June 2014. Total nitrogen (TN) concentrations in excess of EPA guidelines and statistically greater than at reference locations indicated nitrogen-nutrient enr
Authors
Celeste A. Journey, Peter C. Van Metre, Daniel T. Button, Jimmy M. Clark, Mark D. Munn, Naomi Nakagaki, Sharon L. Qi, Ian R. Waite, Paul M. Bradley
Monitoring wadeable stream habitat conditions in Southeast Coast Network parks: Protocol narrative
The Southeast Coast Network (SECN) has initiated a monitoring effort to assess habitat conditions in wadeable streams at national parks, recreation areas, battlefields, and monuments in Alabama, Georgia, and South Carolina. This monitoring effort includes Chattahoochee River National Recreation Area, Kennesaw Mountain National Battlefield Park, Congaree National Park, Horseshoe Bend National Milit
Authors
Jacob M. McDonald, Mark B. Gregory, Jeffrey W. Riley, Eric N. Starkey
Methods used for the collection and analysis of chemical and biological data for the Tapwater Exposure Study, United States, 2016–17
In 2016, the U.S. Geological Survey (USGS) Environmental Health Mission Area, initiated the Tapwater Exposure Study as part of an infrastructure project to assess human exposure to potential threats from complex mixtures of contaminants. In the pilot phase (2016), samples were collected from 11 States throughout the United States, and in the second phase (2017), the study focused on the Greater Ch
Authors
Kristin M. Romanok, Dana W. Kolpin, Shannon M. Meppelink, Maria Argos, Juliane B. Brown, Michael J. Devito, Julie E. Dietze, Carrie E. Givens, James L. Gray, Christopher P. Higgins, Michelle L. Hladik, Luke R. Iwanowicz, Keith A. Loftin, R. Blaine McCleskey, Carrie A. McDonough, Michael T. Meyer, Mark J. Strynar, Christopher P. Weis, Vickie S. Wilson, Paul M. Bradley
Concentrations of lead and other inorganic constituents in samples of raw intake and treated drinking water from the municipal water filtration plant and residential tapwater in Chicago, Illinois, and East Chicago, Indiana, July–December 2017
The U.S. Geological Survey (USGS) Environmental Health Mission Area (EHMA) is providing comprehensive science on sources, movement, and transformation of contaminants and pathogens in watershed and aquifer drinking-water supplies and in built water and wastewater infrastructure (referred to as the USGS Water and Wastewater Infrastructure project) in the Greater Chicago Area and elsewhere in the Un
Authors
Kristin M. Romanok, Dana W. Kolpin, Shannon M. Meppelink, Michael J. Focazio, Maria Argos, Mary E. Hollingsworth, R. Blaine McCleskey, Andrea R. Putz, Alan Stark, Christopher P. Weis, Abderrahman Zehraoui, Paul M. Bradley
Overwintering behavior of juvenile sea turtles at a temperate foraging ground
Most freshwater and terrestrial turtle species that inhabit temperate environments hibernate to survive extreme cold periods. However, for sea turtles, the question of whether these species use hibernation as an overwintering strategy has not been resolved (Ultsch 2006). Felger et al. (1976) suggested that sea turtles bury themselves in mud on the seafloor and remain dormant throughout the winter,
Authors
Margaret M. Lamont, David R. Seay, Kathleen Gault
Introduction and dispersal of non-native bullseye snakehead Channa marulius (Hamilton, 1822) in the canal system of southeastern Florida, USA
An established population of bullseye snakehead (Channa marulius), a large predatory fish from southeastern Asia, was identified for the first time in North America from waters in southeastern Florida, USA, in the year 2000. Since then, it has dispersed throughout the extensive canal system in the area from West Palm Beach south to Miramar. Collection data were compiled to determine the extent of
Authors
Amy J. Benson, Pamela J. Schofield, Kelly B. Gestring
Terrestrial wetlands
1. The assessment of terrestrial wetland carbon stocks has improved greatly since the First State of the Carbon Cycle Report (CCSP 2007) because of recent national inventories and the development of a U.S. soils database. Terrestrial wetlands in North America encompass an estimated 2.2 million km2, which constitutes about 37% of the global wetland area, with a soil and vegetation carbon pool of ab
Authors
Randall Kolka, Carl Trettin, Wenwu Tang, Ken W. Krauss, Sheel Bansal, Judith Z. Drexler, Kimberly P. Wickland, Rodney A. Chimner, Dianna M. Hogan, Emily J. Pindilli, Brian Benscoter, Brian Tangen, Evan S. Kane, Scott D. Bridgham, Curtis J. Richardson
Coupling high-frequency stream metabolism and nutrient monitoring to explore biogeochemical controls on downstream nitrate delivery
Instream biogeochemical process measurements are often short-term and localized. Here we use in situ sensors to quantify the net effects of biogeochemical processes on seasonal patterns in baseflow nitrate retention at the river-reach scale. Dual-station high-frequency in situ nitrate measurements, were coupled with high-frequency measurements of stream metabolism and dissolved inorganic carbon, i
Authors
Helen P. Jarvie, Andrew N. Sharpley, Timothy M. Kresse, Phillip D. Hays, Richard J. Williams, Stephen M. King, Lawrence G. Berry
A 3,000‐year lag between the geological and ecological shutdown of Florida's coral reefs
The global‐scale degradation of coral reefs has reached a critical threshold wherein further declines threaten both ecological functionality and the persistence of reef structure. Geological records can provide valuable insights into the long‐term controls on reef development that may be key to solving the modern coral‐reef crisis. Our analyses of new and existing coral‐reef cores from throughout
Authors
Lauren Toth, Ilsa B. Kuffner, Anastasios Stathakopoulos, Eugene A. Shinn
StreamStats for South Carolina: A multipurpose water-resources web application
The U.S. Geological Survey (USGS) developed the South Carolina StreamStats application in cooperation with the South Carolina Department of Transportation. StreamStats (https://water.usgs.gov/osw/streamstats/) is a map-based web application that provides analytical tools useful for water-resources planning and management and many engineering purposes. The web application delineates drainage areas
Authors
Toby D. Feaster, Jimmy M. Clark, Katharine Kolb
Effect of sample holding time on bioaccessibility and sediment ecotoxicological assessments
The ecotoxicological effects of hydrophobic organic compound (HOC) contamination in sediment are often
assessed using laboratory exposures of cultured invertebrates to field-collected sediment. The use of a
sediment holding time (storage at 4°C) between field sampling and the beginning of the bioassay is common
practice, yet the effect of holding time on the reliability of bioassay results is larg
Authors
Kara S Huff Hartz, Federico L. Sinche, Samuel A. Nutile, Courtney Y. Fung, Patrick W. Moran, Peter C. Van Metre, Lisa H. Nowell, Marc A. Mills, Michael J Lydy