Triangle area water supply monitoring project, North Carolina-Summary of monitoring activities, quality assurance, and data, October 2015–September 2017
Cassandra A. Pfeifle, Jessica L. Cain, Ryan B. Rasmussen
2019, Open-File Report 2019-1077
Surface-water supplies are important sources of drinking water for residents in the Triangle area of North Carolina, which is located within the upper Cape Fear and Neuse River Basins. Since 1988, the U.S. Geological Survey and a consortium of local governments have tracked water-quality conditions and trends in several of...
Estimating minimum streamflow from measurements at ungauged sites in regions with streamflow‐gauging networks
Christopher P. Konrad
2019, Hydrological Processes (33) 2057-2067
Estimation of low flows in rivers continues to be a vexing problem despite advances in statistical and process‐based hydrological models. We develop a method to estimate minimum streamflow at seasonal to annual timescales from measured streamflow based on regional similarity in the deviations of daily streamflow from minimum streamflow for a period of interest....
Offshore shallow structure and sediment distribution, Point Sur to Point Arguello, central California
Samuel Y. Johnson, Stephen R. Hartwell, Janet T. Watt, Jeffrey W. Beeson, Peter Dartnell
2019, Open-File Report 2018-1158
This publication consists of three map sheets that display shallow geologic structure, along with sediment distribution and thickness, for an about 225-km-long offshore section of the central California coast between Point Sur and Point Arguello. Each map sheet includes three maps, at scales of either 1:150,000 or 1:200,000, as well...
Observations of American Shad Alosa sapidissima approaching and using a vertical slot fishway at the head-of-tide Brunswick Dam on the Androscoggin River, Maine
Daniel M. Weaver, Michael Brown, Joseph D. Zydlewski
2019, Fisheries Bulletin (39) 989-998
American Shad Alosa sapidissima have historically supported an important fishery along the Atlantic coastal waters of North America. However, the construction of dams reduced populations and restricted landings. Fishways are intended to mitigate obstacles to anadromous fish migrations, but a thorough evaluation of their efficiency is warranted. We...
Environmental DNA assays for invasive populations of the Black Carp, Mylopharyngodon piceus, in North America
Xin Guan, E.M. Monroe, K.D. Bockrath, Erica L. Mize, C.B. Rees, Denise L. Lindsay, Kelly L. Baerwaldt, Leo Nico, Richard F. Lance
2019, Transactions of the American Fisheries Society (148) 1043-1055
The Black Carp, Mylopharyngodon piceus, is an increasingly widespread invasive species in North America that threatens freshwater mussel populations. We developed four qPCR assays for detecting environmental DNA (eDNA) from these Black Carp populations. Assays were designed to target four mitochondrial DNA loci and were based on 34 complete mitochondrial...
Fish assemblages in a Mississippi reservoir mudflat with low structural complexity
H. R. Hatcher, Leandro E. Miranda, M. E. Colvin, G. Coppola, M. A. Lashley
2019, Hydrobiologia (841) 163-175
In shallow reservoirs, seasonal water drawdowns expose littoral areas and over time produce barren mudflats. When flooded, mudflats provide homogeneous substrates, turbid water, and eroding shorelines of limited ecological value. We hypothesized that in mudflats structurally complex habitats are occupied by more fish, smaller fish of a larger range in...
Effects of manure and tillage on edge-of-field phosphorus loss in seasonally frozen landscapes
Zachariah P. Zopp, Matthew D. Ruark, Anita M. Thompson, Todd D. Stuntebeck, Eric Cooley, Amber Radatz, Timothy Radatz
2019, Journal of Environmental Quality (48) 966-977
Environmental conditions and management practices affect nutrient losses in surface runoff, but their relative impacts on phosphorus (P) loss during frozen and nonfrozen ground periods have not been well quantified. More specifically, the relative importance of manure application, tillage, and soil-test P (STP) has not been assessed at the field...
Water-quality, bed-sediment, and biological data (October 2016 through September 2017) and statistical summaries of data for streams in the Clark Fork Basin, Montana
Tom Cleasby, Michelle I. Hornberger, Terry L. Heinert, Matthew A. Turner
2019, Open-File Report 2019-1060
Water, bed sediment, and biota were sampled in selected streams from Butte to near Missoula, Montana, as part of a monitoring program in the Clark Fork Basin of western Montana. The sampling program was led by the U.S. Geological Survey, in cooperation with the U.S. Environmental Protection Agency, to characterize...
Heat flow in the Western Arctic Ocean (Amerasian Basin)
Carolyn D. Ruppel, A.H. Lachenbruch, Deborah Hutchinson, Robert Munroe, David Mosher
2019, Journal of Geophysical Research B: Solid Earth (124) 7562-7587
From 1963 to 1973 the U.S. Geological Survey (USGS) measured heat flow at 356 sites in the Amerasian Basin (Western Arctic Ocean) from a drifting ice island (T-3). The resulting measurements, which are unevenly distributed on Alpha-Mendeleev Ridge (AMR) and in Canada and Nautilus basins, greatly expand available heat flow...
Extent of the Last Glacial Maximum (Tioga) glaciation in Yosemite National Park and vicinity, California
Clyde Wahrhaftig, Greg M. Stock, Reba G. McCracken, Peri Sasnett, Andrew J. Cyr
2019, Scientific Investigations Map 3414
Yosemite National Park, located in the central Sierra Nevada in California, is an icon of the U.S. National Park system. It is famous for its many spectacular geologic features, which include the towering cliffs and hanging waterfalls of Yosemite Valley and the rounded granite domes, deep blue lakes, and jagged...
First examination of diet items consumed by wild-caught black carp (Mylopharyngodon piceus) in the U.S.
Barry C. Poulton, Patrick Kroboth, George Aiken, Duane Chapman, J. Bailey, Stephen E. McMurray, John S. Faiman
2019, The American Midland Naturalist (182) 89-108
Black carp (Mylopharyngodon piceus) were imported to the U.S. in the 1970s to control snails in aquaculture ponds and have since escaped from captivity. The increase in captures of wild fish has raised concerns of risk to native and imperiled unionid mussels given previous literature classified this species a molluscivore....
Status of the Topeka shiner in Iowa
Clay Pierce, Nicholas T. Simpson, Alexander P. Bybel, Courtney L. Zambory, Michael J. Weber, Kevin J. Roe
2019, American Midland Naturalist (182) 109-117
The Topeka shiner Notropis topeka is native to Iowa, Kansas, Minnesota, Missouri, Nebraska, and South Dakota and has been federally listed as endangered since 1998. Our goals were to determine the present distribution and qualitative status of Topeka shiners throughout its current range in Iowa and characterize the extent of decline in...
Precipitation regime change in Western North America: The role of atmospheric rivers
Alexander Gerhunov, Tamara Shulgina, Rachel Clemesha, Kristen Guirguis, David Pierce, Michael D. Dettinger, David A. Lavers, Daniel Cayan, Suraj Polade, Julie Kalansky, Martin Ralph
2019, Scientific Reports (9)
Daily precipitation in California has been projected to become less frequent even as precipitation extremes intensify, leading to uncertainty in the overall response to climate warming. Precipitation extremes are historically associated with Atmospheric Rivers (ARs). Sixteen global climate models are evaluated for realism in modeled historical AR behavior and contribution...
Predictive analysis using chemical-gene interaction networks consistent with observed endocrine activity and mutagenicity of U.S. streams
Jason P. Berninger, David M. DeMarini, Sarah H. Warren, Jane Ellen Simmons, Vickie S. Wilson, Justin M. Conley, Mikayla D. Armstrong, Dana W. Kolpin, Kathryn Kuivila, Timothy J. Reilly, Kristin M. Romanok, Daniel L. Villeneuve, Paul M. Bradley, Luke R. Iwanowicz
2019, Environmental Science & Technology (53) 8611-8620
In a recent U.S. Geological Survey/U.S. Environmental Protection Agency study assessing >700 organic compounds in 38 streams, in vitro assays indicated generally low estrogen, androgen, and glucocorticoid receptor activities, but identified 13 surface waters with 17β estradiol equivalent (E2Eq) activities greater than the 1 ng/L level of concern for feminization...
Hydrologic study at Farm Creek Marsh, Dorchester County, Maryland, from April 2015 to April 2016
Charles W. Walker, Todd R. Lester, Christopher W. Nealen
2019, Scientific Investigations Report 2019-5032
In 2015, the U.S. Geological Survey began a 1-year hydrologic study to investigate the extent and cause of inundation at Farm Creek Marsh, in Dorchester County, Maryland. In combination with a tide and precipitation gage, a representative section of the marsh was instrumented with surface-water monitors and shallow groundwater piezometers...
Examination of movements and survival of Pahranagat roundtail chub (Gila robusta jordani) in the Pahranagat River and adjacent waters, Nevada, 2014–18
Barbara A. Martin, Brian S. Hayes, Alta C. Harris
2019, Open-File Report 2019-1075
Executive SummaryThe Pahranagat roundtail chub (Gila robusta jordani; hereinafter “chub”) was federally listed as endangered in 1970 (U.S. Fish and Wildlife Service, 1970). In the decades following the listing, the chub has declined to extremely low numbers (Tuttle and others, 1990; Guadalupe, 2014). Loss of available habitat appears to...
Report from the Ice and Climate Evolution Science Analysis group (ICE-SAG)
Than Putzig, Serina Diniega, Colin M. Dundas, Timothy N. Titus
2019, Report
This document is the final report of the Ice and Climate Evolution Science Analysis Group (ICESAG) that was formed by the Mars Exploration Program Analysis Group (MEPAG) as part of its preparations for the upcoming NASA Planetary Science Decadal Survey for 2023 through 2032 (see §1). Through telecons, one face-to-face...
Timber harvest alters mercury bioaccumulation and food web structure in headwater streams
James Willacker, Collin A. Eagles-Smith, Brandon M Kowalski, Robert J Danehy, Allyson K. Jackson, Evan M. Adams, David C. Evers, Chris S. Eckley, Michael T. Tate, David P. Krabbenhoft
2019, Environmental Pollution (253) 636-645
Timber harvest has many effects on aquatic ecosystems, including changes in hydrological, biogeochemical, and ecological processes that can influence mercury (Hg) cycling. Although timber harvest’s influence on aqueous Hg transformation and transport are well studied, the effects on Hg bioaccumulation are not. We evaluated Hg bioaccumulation, biomagnification, and food web...
Long-term (1986–2015) crop water use characterization over the Upper Rio Grande Basin of United States and Mexico using Landsat-based evapotranspiration
Gabriel Senay, Matthew Schauer, Naga Manohar Velpuri, Ramesh Singh, Stefanie Kagone, MacKenzie Friedrichs, Marcy Litvak, Kyle R. Douglas-Mankin
2019, Remote Sensing (11)
The evaluation of historical water use in the Upper Rio Grande Basin (URGB), United States and Mexico, using Landsat-derived actual evapotranspiration (ETa) from 1986 to 2015 is presented here as the first study of its kind to apply satellite observations to quantify long-term, basin-wide crop consumptive use in a large...
Cell-Based metabolomics for untargeted screening and prioritization of vertebrate-active stressors in streams across the United States
Timothy W. Collette, Drew R. Ekman, Huajun Zhen, Ha Nguyen, Paul Bradley, Quincy Teng
2019, Environmental Science & Technology (53) 9232-9240
The U.S. Geological Survey and the U.S. Environmental Protection Agency have assessed contaminants in 38 streams across the U.S., using an extensive suite of target-chemical analysis methods along with a variety of biological effects tools. Here we report zebrafish liver (ZFL) cell-culture based NMR metabolomic analysis of these split stream...
Intermountain west drought social science synthesis working group: Report to the National Climate Adaptation Science Center
Adam Wilke, Amanda E. Cravens, Robin O’Malley
2019, Report
Throughout the Intermountain West, there has been significant investment in understanding how social factors influence manager and citizen experiences of drought in particular locations. Yet there is still a gap in knowledge of how human dimensions of drought impacts, planning, and resilience are similar and different across cases and regions....
Perspective: Developing flow policies to balance the water needs of humans and wetlands requires a landscape scale approach inclusive of future scenarios and multiple timescales
Brent Murry, Jared Bowden, Benjamin Branoff, Miguel Garcia-Bermudez, Beth A. Middleton, Jorge Ortiz-Zayas, Carla Restrepo, Adam J. Terando
2019, Wetlands 1-13
Maintenance of the natural flow regime is essential for continued wetland integrity; however, the flow regime is greatly influenced by both natural and anthropogenic forces. Wetlands may be particularly susceptible to altered flow regimes as they are directly impacted by water flows at a variety of time scales. In Puerto...
Hydrologic site assessment for passive treatment of groundwater nitrogen with permeable reactive barriers, Cape Cod, Massachusetts
Jeffrey R. Barbaro, Marcel Belaval, Danna B. Truslow, Denis R. LeBlanc, Thomas C. Cambareri, Scott C. Michaud
2019, Scientific Investigations Report 2019-5047
Wastewater disposal associated with rapid population growth and development on Cape Cod, Massachusetts, during the past several decades has resulted in widespread contamination of groundwater with nitrogen. As a result, water quality in many of the streams, lakes, and coastal embayments on Cape Cod is impaired by excess nitrogen. To...
Sharp savanna-forest transitions in the Midwest followed environmental gradients but are absent from the modern landscape
Caitlin M. Broderick, Kelly A Heilman, Tamatha Patterson, Jody Peters, Jason S. McLachlan
2019, The American Midland Naturalist (180) 1-17
Historically, closed eastern forests transitioned into open savannas and prairies in the US Midwest, but this transition is poorly understood. To investigate the eastern boundary of the prairie-forest ecotone, we conducted a case study of historic and modern vegetation patterns of the Yellow River watershed in northwest Indiana. Historic vegetation...
Comparability of different river suspended sediment sampling and laboratory analysis methods and the effect of sand
Joel T. Groten, Gregory D. Johnson
2019, Conference Paper, Proceedings of SEDHYD 2019
Accurate measurements of suspended sediment, a leading water-quality impairment in many rivers, are important for managing and protecting water resources; however, water quality standards for suspended sediment in Minnesota are based on grab field sampling and total suspended solids (TSS) laboratory analysis methods. These methods have underrepresented concentrations of suspended...
