Formation criteria for hyporheic anoxic microzones: Assessing interactions of hydraulics, nutrients and biofilms
S. R. Chowdhury, J. Zarnetske, M.S. Phanikumar, Martin A. Briggs, Frederick D. Day-Lewis, K. Singha
2020, Water Resources Research (56)
Recent experimental studies have detected the presence of anoxic microzones in hyporheic sediments. These microzones are small‐scale anoxic pores, embedded within oxygen‐rich porous media and can act as anaerobic reaction sites producing reduction compounds such as nitrous oxide, a potent greenhouse gas. Microbes are a key control on nutrient transformation...
Does Lake Erie still have sufficient oxythermal habitat for cisco Coregonus artedi?
Joseph Schmitt, Christoper S. Vandergoot, Brian P. O’Malley, Richard Kraus
2020, Journal of Great Lakes Research (46) 330-338
In Lake Erie, cisco Coregonus artedi once supported one of the most valuable freshwater fisheries on earth, yet overfishing caused their eventual extirpation from the lake. With warming lake temperatures, some have questioned whether Lake Erie still contains suitable oxythermal conditions for cisco. Using published oxythermal thresholds for cisco...
Potential groundwater recharge rates for two subsurface-drained agricultural fields, southeastern Minnesota, 2016–18
Erik A. Smith, Andrew M. Berg
2020, Scientific Investigations Report 2020-5006
Subsurface drainage is used to efficiently drain saturated soils to support productive agriculture in poorly drained terrains. Although subsurface drainage alters the water balance for agricultural fields, its effect on groundwater resources and groundwater recharge is poorly understood. In Minnesota, subsurface drainage has begun to increase in southeastern Minnesota, even...
Batch extraction method to estimate total dissolved solids (TDS) release from coal refuse and overburden
L. E. Castillo-Meza, Charles A. Cravotta III, T. L. Tasker, N. R. Warner, W. L. Daniels, Z. W. Orndorff, T. Bergstresser, A. Douglass, G. Kimble, J. Streczywilk, C. Barton, A Thompson, W. D. Burgos
2020, Applied Geochemistry (115)
A rapid batch extraction method was evaluated to estimate potential for total dissolved solids (TDS) release by 65 samples of rock from coal and gas-bearing strata of the Appalachian Basin in eastern USA. Three different extractant solutions were considered: deionized water (DI), DI equilibrated with 10% CO2 atmosphere (DI + CO2), or 30%...
Groundwater model simulations of stakeholder-identified scenarios in a high-conflict irrigated area
Maribeth Kniffin, Kenneth Bradbury, Michael N. Fienen, Kenneth Genskow
2020, Groundwater (58) 973-986
This study investigated collaborative groundwater‐flow modeling and scenario analysis in the Little Plover River basin, Wisconsin, USA where an unconfined aquifer supplies groundwater for agricultural irrigation, industrial processing, municipal water supply, and stream baseflow. We recruited stakeholders with diverse interests to identify, prioritize, and evaluate scenarios...
An integrated feasibility study of reservoir thermal energy storage in Portland, Oregon, USA
John Bershaw, Erick R. Burns, Trenton T Cladouhos, Alison E Horst, Boz Van Houten, Peter Hulseman, Alisa Kane, Jenny H Liu, Robert B Perkins, Darby P Scanlon, Ashley R. Streig, Ellen E Svadlenak, Matt W Uddenberg, Ray E Wells, Colin F. Williams
2020, Conference Paper, Proceedings: 45th workshop on Geothermal Reservoir Engineering, Stanford University
In regions with long cold overcast winters and sunny summers, Deep Direct-Use (DDU) can be coupled with Reservoir Thermal Energy Storage (RTES) technology to take advantage of pre-existing subsurface permeability to save summer heat for later use during cold seasons. Many aquifers worldwide are underlain by permeable regions (reservoirs) containing...
Carbon stock trends of baldcypress knees along climate gradients of the Mississippi River Alluvial Valley using allometric methods
Beth A. Middleton
2020, Forest Ecology and Management (461)
Carbon stock trends of the knees of Taxodium distichum likely vary across climate gradients of the southeastern United States and contribute an unknown quantity of “teal” carbon to inland freshwater wetlands. Knee metrics (e.g., density, height, biomass) were measured in mixed T. distichum swamps across the Mississippi River Alluvial Valley...
Waterfowl occurrence and residence time as indicators of H5 and H7 avian influenza in North American Poultry
John M. Humphreys, Andy Ramey, David C. Douglas, Jennifer M. Mullinax, Catherine Soos, Paul T. Link, Patrick Walther, Diann J. Prosser
2020, Scientific Reports (10) 16
Avian influenza (AI) affects wild aquatic birds and poses hazards to human health, food security, and wildlife conservation globally. Accordingly, there is a recognized need for new methods and tools to help quantify the dynamic interaction between wild bird hosts and commercial poultry. Using satellite-marked waterfowl, we applied Bayesian...
Evaluation of legacy and emerging organic chemicals using passive sampling devices on the North Branch Au Sable River near Lovells, Michigan, June 2018
Angela K. Brennan, David A. Alvarez
2020, Scientific Investigations Report 2020-5002
The North Branch Au Sable River, located in the northern lower peninsula of Michigan near Lovells, Michigan, has historically been known for its brook trout (Salvelinus fontinalis) and its status as a blue ribbon trout stream; however, within the past few decades, there has been a decline in fish population....
A review of Cattail (Typha) invasion in North American wetlands
Sheel Bansal, Brian Tangen, Shane Lishawa, Sue Newman, Douglas Wilcox
2020, Fact Sheet 2019-3076
OverviewCattail (Typha) is an iconic emergent wetland plant found worldwide. By producing an abundance of wind-dispersed seeds, cattail can colonize wetlands across great distances, and its rapid growth rate, large size, and aggressive expansion result in dense stands in a variety of aquatic ecosystems such as marshes, ponds, lakes, and...
Forest vegetation change and its impacts on soil water following 47 years of managed wildfire
Jens Stevens, Gabrielle F. S. Boisrame, Ekaterina Rakhmatulina, Sally E. Thompson, Brandon M. Collins, Scott L. Stephens
2020, Ecosystems (23) 1547-1565
Managed wildfire is an increasingly relevant management option to restore variability in vegetation structure within fire-suppressed montane forests in western North America. Managed wildfire often reduces tree cover and density, potentially leading to increases in soil moisture availability, water storage in soils and groundwater, and streamflow. However, the potential hydrologic...
Mixed organic and inorganic tapwater exposures and potential effects in greater Chicago area, USA
Paul Bradley, Maria Argos, Dana W. Kolpin, Shannon M. Meppelink, Kristin M. Romanok, Kelly L. Smalling, Michael J. Focazio, Joshua M. Allen, Julie E. Dietze, Michael J. Devito, Ariel Donovan, Nicola Evans, Carrie E. Givens, James L. Gray, Christopher P. Higgins, Michelle L. Hladik, Luke Iwanowicz, Celeste A. Journey, Rachael F. Lane, Zachary R. Laughrey, Keith A. Loftin, R. Blaine McCleskey, Carrie A. McDonough, Elizabeth K Medlock Kakaley, Michael T. Meyer, Andrea Holthouse-Putz, Susan D Richardson, Alan Stark, Christopher P. Weis, Vickie S. Wilson, Abderrahman Zehraoui
2020, Science of the Total Environment (719)
Safe drinking water at the point of use (tapwater, TW) is a public-health priority. TW exposures and potential human-health concerns of 540 organics and 35 inorganics were assessed in 45 Chicago area United States (US) homes in 2017. No US Environmental Protection Agency (EPA) enforceable Maximum Contaminant Level(s) (MCL) were...
Hydrogeologic characterization, groundwater chemistry, and vulnerability assessment, Ute Mountain Ute Reservation, Colorado and Utah
Nancy J. Bauch, L. Rick Arnold
2020, Scientific Investigations Report 2019-5122
The U.S. Geological Survey, in cooperation with the Ute Mountain Ute Tribe (UMUT), initiated a study in 2016 to increase understanding of the hydrogeology and chemistry of groundwater within select areas of the Ute Mountain Ute Reservation (UMUR) in Colorado and Utah, identify vulnerabilities to the system and other natural...
Modelling pinniped abundance and distribution by combining counts at terrestrial sites and in-water sightings
Steven L. Whitlock, Jamie N. Womble, James T. Peterson
2020, Ecological Modelling (420)
Pinnipeds are commonly monitored using aerial photographic surveys at land- or ice-based sites, where animals come ashore for resting, pupping, molting, and to avoid predators. Although these counts form the basis for monitoring population change over time, they do not provide information...
Estuarine submerged aquatic vegetation habitat provides organic carbon storage across a shifting landscape
E. R. Hillman, V. H. Rivera-Monroy, A. J. Nyman, Megan K. La Peyre
2020, Science of the Total Environment (717)
Submerged aquatic vegetation (SAV) thrives across the estuarine salinity gradient providing valuable ecosystem services. Within the saline portion of estuaries, seagrass areas are frequently cited as hotspots for their role in capturing and retaining organic carbon (Corg). Non-seagrass SAV, located in the fresh to brackish estuarine areas, may also retain...
Determining the drivers of suspended sediment dynamics in tidal marsh-influenced estuaries using high-resolution ocean color remote sensing
Xiaohe Zhang, Cedric Fichot, Carly Baracco, Ruizhe Guo, Sydney Neugebauer, Zachary Bengtsson, Neil K. Ganju, Sergio Fagherazzi
2020, Remote Sensing (240)
Sediment budgets are a critical metric to assess coastal marsh vulnerability to sea-level rise and declining riverine sediment inputs. However, calculating accurate sediment budgets is challenging in tidal marsh-influenced estuaries where suspended sediment concentrations (SSC) typically vary on scales of hours and meters, and where SSC dynamics are driven by...
Water quality and ecological risk assessment of intermittent streamflow through mining and urban areas of San Marcos River sub-basin, Mexico
Elisenda Lopez, Reynaldo Patino, Maria L. Vazquez-Sauceda, Roberto Perez-Castaneda, Leonardo U. Arellano-Mendez, Rene Ventura-Houle, Lorenzo Heyer
2020, Environmental Nanotechnology, Monitoring & Management (14)
Intermittent rivers are becoming more ecologically stressed worldwide. Flow cessation occurs naturally and spatiotemporally in these systems and anthropogenic activities such as wastewater discharges can have considerable impacts. Public entities mostly monitor water quality in permanent streams, leading to insufficient monitoring of intermittent streams and consequently to their potentially inadequate...
Sensitivity of warm water fishes and rainbow trout to selected contaminants
John M. Besser, Rebecca A. Dorman, Chris D. Ivey, Danielle M. Cleveland, Jeffery A. Steevens
2020, Bulletin of Environmental Contamination and Toxicology (104) 321-326
Guidelines for developing water quality standards allow U.S. states to exclude toxicity data for the family Salmonidae (trout and salmon) when deriving guidelines for warm-water habitats. This practice reflects the belief that standards based on salmonid data may be overprotective of toxic effects on other fish taxa. In acute tests...
Plastic faulting in ice
Narayama Golding, William B Durham, David J Prior, Laura A. Stern
2020, Journal of Geophysical Research- Solid Earth (125)
Plastic faulting is a brittle‐like failure phenomenon exhibited by water ice and several other rock types under confinement. It is suspected to be the mechanism of deep earthquakes and extreme cases of shear localization in shallow rocks. Unlike ordinary Coulombic failure, plastic faulting is characterized by...
Hydrologic connectivity determines dissolved organic matter biogeochemistry in northern high-latitude lakes
Sarah Ellen Johnston, Robert G. Striegl, Matthew J. Bogard, Mark M. Dornblaser, David E. Butman, Anne M. Kellerman, Kimberly P. Wickland, David C. Podgorski, Robert G. M. Spencer
2020, Limnology and Oceanography (65) 1764-1780
Northern high‐latitude lakes are undergoing climate‐induced changes including shifts in their hydrologic connectivity with terrestrial ecosystems. How this will impact dissolved organic matter (DOM) biogeochemistry remains uncertain. We examined the drivers of DOM composition for lakes in the Yukon Flats Basin in Alaska, an arid region of low relief that...
"Modified Unified Method" of carp capture
Duane Chapman
2020, Fact Sheet 2020-3005
Populations of Hypophthalmichthys molitrix (silver carp) and Hypophthalmichthys nobilis (bighead carp), (together referred to herein as “bigheaded carp”) have increased exponentially in the greater Mississippi River Basin. Detrimental effects on native fish and economically important fisheries have occurred where these invasive, filter-feeding fish are abundant. The Unified Method, a harvest...
Groundwater withdrawals and regional flow paths at and near Willow Grove and Warminster, Pennsylvania—Data compilation and preliminary simulations for conditions in 1999, 2010, 2013, 2016, and 2017
Daniel J. Goode, Lisa A. Senior
2020, Open-File Report 2019-1137
In 2014, groundwater samples from residential and public supply wells in the vicinity of two former U.S. Navy bases at Willow Grove and Warminster, and an active Air National Guard Station at Horsham, Bucks and Montgomery Counties, Pennsylvania, were found to have concentrations of perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate...
Northward migration of the Oregon forearc on the Gales Creek fault
Ray Wells, Richard J. Blakely, Sean Bemis
2020, Geosphere (16) 660-684
The Gales Creek fault (GCF) is a 60-km-long, northwest-striking dextral fault system (west of Portland, Oregon) that accommodates northward motion and uplift of the Oregon Coast Range. New geologic mapping and geophysical models confirm inferred offsets from earlier geophysical surveys and document ∼12 km of right-lateral offset...
Did ice-charging generate volcanic lightning during the 2016–2017 eruption of Bogoslof volcano, Alaska?
Alexa R. Van Eaton, David J. Schneider, Cassandra Marie Smith, Matthew M. Haney, John J. Lyons, Ryan Said, David Fee, Robert H. Holzworth, Larry G. Mastin
2020, Bulletin of Volcanology (82)
The 2016–2017 shallow submarine eruption of Bogoslof volcano in Alaska injected plumes of ash and seawater to maximum heights of ~ 12 km. More than 4550 volcanic lightning strokes were detected by the World Wide Lightning Location Network (WWLLN) and Vaisala’s Global Lightning Dataset (GLD360) over 9 months. Lightning...
Mule deer habitat selection following vegetation thinning treatments in New Mexico
Grant E. Sorensen, David W. Kramer, James W. Cain III, Chase A. Taylor, Philip S. Gipson, Mark C. Wallace, Robert D. Cox, Warren B. Ballard
2020, Wildlife Society Bulletin (44) 122-129
Mule deer (Odocoileus hemionus) survival and population growth in north-central New Mexico, USA, was previously reported to be limited by nutritional constraints due to poor forage conditions in degraded habitats. Management recommendations suggested thinning of pinyon–juniper to improve habitat quality for mule deer. To evaluate the...
