Methods for estimating selected low-flow frequency statistics and mean annual flow for ungaged locations on streams in North Georgia
Anthony J. Gotvald
2017, Scientific Investigations Report 2017-5001
The U.S. Geological Survey, in cooperation with the Georgia Department of Natural Resources, Environmental Protection Division, developed regional regression equations for estimating selected low-flow frequency and mean annual flow statistics for ungaged streams in north Georgia that are not substantially affected by regulation, diversions, or urbanization. Selected low-flow frequency statistics...
Water resources of East Feliciana Parish, Louisiana
Vincent E. White, Lawrence B. Prakken
2017, Fact Sheet 2016-3069
Information concerning the availability, use, and quality of water in East Feliciana Parish, Louisiana, is critical for proper water-resource management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. Information is presented...
Water resources of Calcasieu Parish, Louisiana
Vincent E. White, Lawrence B. Prakken
2017, Fact Sheet 2016-3066
Information concerning the availability, use, and quality of water in Calcasieu Parish, Louisiana, is critical for proper water-resource management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. Information on the availability,...
Gear comparison for sampling age-0 Mountain Whitefish in the Madison River, Montana
Jan K. Boyer, Christopher S. Guy, Molly A. H. Webb, Travis B. Horton, Thomas E. McMahon
2017, North American Journal of Fisheries Management (37) 189-195
The efficacy of various sampling gears for age-0 Mountain Whitefish Prosopium williamsoni is largely unknown, which makes it difficult to investigate recruitment and early life history dynamics for the species. We compared four gears: seine, backpack electrofisher, minnow trap, and lighted minnow trap. Gears were tested in backwaters, large channels,...
The contribution of rice agriculture to methylmercury in surface waters: A review of data from the Sacramento Valley, California
K. Christy Tanner, Lisamarie Windham-Myers, Jacob Fleck, Kenneth W. Tate, Stephen A. McCord, Bruce A. Linquist
2017, Journal of Environmental Quality (46) 133-142
Methylmercury (MeHg) is a bioaccumulative pollutant produced in and exported from flooded soils, including those used for rice (Oriza sativa L.) production. Using unfiltered aqueous MeHg data from MeHg monitoring programs in the Sacramento River watershed from 1996 to 2007, we assessed the MeHg contribution from rice systems to the...
Effects of solid-liquid separation and storage on monensin attenuation in dairy waste management systems
Sarah C. Hafner, Naoko Watanabe, Thomas Harter, Brian A. Bergamaschi, Sanjai J. Parikh
2017, Journal of Environmental Management (190) 28-34
Environmental release of veterinary pharmaceuticals has been of regulatory concern for more than a decade. Monensin is a feed additive antibiotic that is prevalent throughout the dairy industry and is excreted in dairy waste. This study investigates the potential of dairy waste management practices to alter the amount of monensin...
Multinomial N-mixture models improve the applicability of electrofishing for developing population estimates of stream-dwelling Smallmouth Bass
Robert Mollenhauer, Shannon K. Brewer
2017, North American Journal of Fisheries Management (37) 211-224
Failure to account for variable detection across survey conditions constrains progressive stream ecology and can lead to erroneous stream fish management and conservation decisions. In addition to variable detection’s confounding long-term stream fish population trends, reliable abundance estimates across a wide range of survey conditions are fundamental to establishing species–environment...
Peak streamflow on selected streams in Arkansas, December 2015
Brian K. Breaker
2017, Open-File Report 2016-1198
Heavy rainfall during December 2015 resulted in flooding across parts of Arkansas; rainfall amounts were as high as 12 inches over a period from December 27, 2015, to December 29, 2015. Although precipitation accumulations were highest in northwestern Arkansas, significant flooding occurred in other parts of the State. Flood damage...
The Iġnik Sikumi Field Experiment, Alaska North Slope: Design, operations, and implications for CO2−CH4 exchange in gas hydrate reservoirs
Ray Boswell, David Schoderbek, Timothy S. Collett, Satoshi Ohtsuki, Mark White, Brian J. Anderson
2017, Energy & Fuels (31) 140-153
The Iġnik Sikumi Gas Hydrate Exchange Field Experiment was conducted by ConocoPhillips in partnership with the U.S. Department of Energy, the Japan Oil, Gas and Metals National Corporation, and the U.S. Geological Survey within the Prudhoe Bay Unit on the Alaska North Slope during 2011 and 2012. The primary goals...
Timescales of carbon turnover in soils with mixed crystalline mineralogies
Lesego Khomo, Susan E. Trumbore, Carleton R. Bern, Oliver A. Chadwick
2017, SOIL (3) 17-30
Organic matter–mineral associations stabilize much of the carbon (C) stored globally in soils. Metastable short-range-order (SRO) minerals such as allophane and ferrihydrite provide one mechanism for long-term stabilization of organic matter in young soil. However, in soils with few SRO minerals and a predominance of crystalline aluminosilicate or Fe (and...
Long-term flow-through column experiments and their relevance to natural granitoid weathering rates
Arthur F. White, Marjorie S. Schulz, Corey R. Lawrence, Davison V. Vivit, David A. Stonestrom
2017, Geochimica et Cosmochimica Acta (202) 190-214
Four pairs of fresh and partly-weathered granitoids, obtained from well-characterized watersheds—Merced River, CA, USA; Panola, GA, USA; Loch Vale, CO, USA, and Rio Icacos, Puerto Rico—were reacted in columns under ambient laboratory conditions for 13.8 yrs, the longest running experimental weathering study to date. Low total column mass losses...
Spatial variability of harmful algal blooms in Milford Lake, Kansas, July and August 2015
Guy M. Foster, Jennifer L. Graham, Tom C. Stiles, Marvin G. Boyer, Lindsey R. King, Keith A. Loftin
2017, Scientific Investigations Report 2016-5168
Cyanobacterial harmful algal blooms (CyanoHABs) tend to be spatially variable vertically in the water column and horizontally across the lake surface because of in-lake and weather-driven processes and can vary by orders of magnitude in concentration across relatively short distances (meters or less). Extreme spatial variability in cyanobacteria and associated...
Uranium delivery and uptake in a montane wetland, north-central Colorado, USA
R. Randall Schumann, Robert A. Zielinski, James K. Otton, Michael P. Pantea, William H. Orem
2017, Applied Geochemistry (78) 363-379
Comprehensive sampling of peat, underlying lakebed sediments, and coexisting waters of a naturally uraniferous montane wetland are combined with hydrologic measurements to define the important controls on uranium (U) supply and uptake. The major source of U to the wetland is groundwater flowing through locally fractured and faulted granite gneiss...
Evaluation of diffuse and preferential flow pathways of infiltratedprecipitation and irrigation using oxygen and hydrogen isotopes
Bin Ma, Xing Liang, Shaohua Liu, Menggui Jin, John R. Nimmo, Jingxin Li
2017, Hydrogeology Journal (25) 675-688
Subsurface-water flow pathways in three different land-use areas (non-irrigated grassland, poplar forest, and irrigated arable land) in the central North China Plain were investigated using oxygen (18O) and hydrogen (2H) isotopes in samples of precipitation, soils, and groundwater. Soil water in the top 10 cm was significantly affected by both evaporation...
Continued geophysical logging near the GMH Electronics National Priorities List Superfund site near Roxboro, North Carolina
Dominick J. Antolino, Melinda J. Chapman
2017, Data Series 1022
The U.S. Geological Survey South Atlantic Water Science Center collected borehole geophysical logs and images and continuous water-level data near the GMH Electronics National Priorities List Superfund site near Roxboro, North Carolina, during December 2012 through July 2015. Previous work by the U.S. Geological Survey South Atlantic Water Science Center...
Editor’s note
Christopher J. Schmitt
2017, Bulletin of Environmental Contamination and Toxicology (98) 1-1
Heavy metal contamination at shooting ranges is well documented (e.g., Heier et al. 2009; Islam et al. 2016). Primarily lead, but also copper, zinc, and antimony often occur at high concentrations in shooting range soils; cadmium, nickel, silver, and arsenic may also be present (Cao et al. 2003; Islam et...
Predicting cyanobacterial abundance, microcystin, and geosmin in a eutrophic drinking-water reservoir using a 14-year dataset
Ted D. Harris, Jennifer L. Graham
2017, Lake and Reservoir Management
Cyanobacterial blooms degrade water quality in drinking water supply reservoirs by producing toxic and taste-and-odor causing secondary metabolites, which ultimately cause public health concerns and lead to increased treatment costs for water utilities. There have been numerous attempts to create models that predict cyanobacteria and their secondary metabolites, most using...
Simulated mussel mortality thresholds as a function of mussel biomass and nutrient loading
Jeremy S. Bril, Kathryn Langenfeld, Craig L. Just, Scott N. Spak, Teresa Newton
2017, PeerJ (5)
A freshwater “mussel mortality threshold” was explored as a function of porewater ammonium (NH4+) concentration, mussel biomass, and total nitrogen (N) utilizing a numerical model calibrated with data from mesocosms with and without mussels. A mortality threshold of 2 mg-N L−1 porewater NH4+ was selected based on a study that...
Shallow water benthic imaging and substrate characterization using recreational-grade sidescan-sonar
Daniel D. Buscombe
2017, Environmental Modelling and Software 1-18
In recent years, lightweight, inexpensive, vessel-mounted ‘recreational grade’ sonar systems have rapidly grown in popularity among aquatic scientists, for swath imaging of benthic substrates. To promote an ongoing ‘democratization’ of acoustical imaging of shallow water environments, methods to carry out geometric and radiometric correction and georectification of sonar echograms are...
Spatial and temporal patterns of dissolved organic matter quantity and quality in the Mississippi River Basin, 1997–2013
Sarah M. Stackpoole, Edward G. Stets, David W. Clow, Douglas A. Burns, George R. Aiken, Brent T. Aulenbach, Irena F. Creed, Robert M. Hirsch, Hjalmar Laudon, Brian A. Pellerin, Robert G. Striegl
2017, Hydrological Processes (31) 902-915
Recent studies have found insignificant or decreasing trends in time-series dissolved organic carbon (DOC) datasets, questioning the assumption that long-term DOC concentrations in surface waters are increasing in response to anthropogenic forcing, including climate change, land use, and atmospheric acid deposition. We used the weighted regressions on time, discharge, and...
Engaging the user community for advancing societal applications of the Surface Water Ocean Topography mission
Faisal Hossain, Margaret Srinivasan, Craig Peterson, Alice Andral, Ed Beighley, Eric Anderson, Rashied Amini, Charon Birkett, David M. Bjerklie, Cheryl Ann Blain, Selma Cherchali, Cedric H. David, Bradley D. Doorn, Jorge Escurra, Lee-Lueng Fu, Chris Frans, John W. Fulton, Subhrendu Gangopadhyay, Subimal Ghosh, Colin Gleason, Marielle Gosset, Jessica Hausman, Gregg Jacobs, John W. Jones, Yasir Kaheil, Benoit Laignel, Patrick Le Moigne, Li Li, Fabien Lefevre, Mason Jr., Amita Mehta, Abhijit Mukherjee, Anthony Nguy-Robertson, Sophie Ricci, Adrien Paris, Tamlin Pavelsky, Nicolas Picot, Guy Schumann, Sudhir Shrestha, Pierre-Yves Le Traon, Eric Trehubenko
2017, Bulletin of the American Meteorological Society (November 2017) 285-290
Scheduled for launch in 2021, the Surface Water and Ocean Topography (SWOT) mission will be a truly unique mission that will provide high-temporal-frequency maps of surface water extents and elevation variations of global water bodies (lakes/reservoirs, rivers, estuaries, oceans, and sea ice) at higher spatial resolution than is available with...
Molecular detection of avian influenza virus from sediment samples in waterfowl habitats on the Delmarva Peninsula, United States
Christine L. Densmore, Deborah D. Iwanowicz, Christopher Ottinger, Larry J. Hindman, Amanda Bessler, Luke R. Iwanowicz, Diann J. Prosser, Matt Whitbeck, Cindy P. Driscoll
2017, Avian Diseases (61) 520-525
Avian influenza viruses (AIV) affect many species of birds including waterfowl and may persist in sediment in aquatic habitats. Sediment samples were collected from two areas representative of prime migration and overwintering waterfowl habitat in Dorchester County, Maryland in the fall and winter of 2013–2014. Samples were screened for the...
Changing water dynamics: The consequences of shifting snow, ice, and running water for ecosystems, people, and national forests in Alaska
Greg Hayward, Erik Johnson, Nathan Walker, Jeremy S. Littell, Julianne Thompson
2017, Report
Ecosystems of Alaska are rain-, snow-, and ice-driven systems. Consequently, the status of water—liquid or solid—strongly in uences resources and the people using ecosystem services. This document examines changes in water dynamics, the resulting consequences for ecosystems and people, and management options for adapting to changing conditions. Changes in snow, ice,...
Food-web structure in canyon and slope-associated fauna revealed by stable isotopes
Amanda W. J. Demopoulos, Jennifer P. McClain-Counts, Steve W. Ross, Sandra Brooke, Michael Rhode
2017, OCS Study BOEM 2017-060
Food webs and associated trophic linkages among organisms are central themes in ecology that provide insight into the structure and function of ecosystems. In the deep sea, food webs rely on particulate flux raining from surface waters for energy (Klages et al. 2003), except for chemosynthetic communities, which rely on...
Ecology of the Eastern Kingsnake (Lampropeltis getula) at Rainey Slough, Florida: A vanished Eden
J. Steve Godley, Brian J. Halstead, Roy W. McDiarmid
2017, Herpetological Monographs (31) 47-68
Eastern Kingsnakes (Lampropeltis getula) are an important component and predator in herpetofaunal communities, but many Eastern Kingsnake populations have declined precipitously in the last few decades, particularly in the southeastern United States. Here, we describe an intensive capture–mark–recapture study of L. getula conducted during 1974–1978 in a canal bank–Water Hyacinth (Eichhornia...
