Effect of sample holding time on bioaccessibility and sediment ecotoxicological assessments
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
2018, Environmental Pollution (242) 2078-2087
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...
Tropical storm-induced landslide potential using combined field monitoring and numerical modeling
Pan Chen, Ning Lu, Giuseppe Formetta, Jonathan W. Godt, Alexandra Wayllace
2018, Journal of Geotechnical and Geoenvironmental Engineering (144) 1-12
When heavy rainfall, such as that associated with tropical storms, falls on steep hillsides, shallow landslides are often one of the damaging consequences. To assess landslide potential from heavy rainfall, a strategy of combined numerical simulation and field monitoring of variably saturated hillslope conditions is developed. To...
Climate dictates magnitude of asymmetry in soil depth and hillslope gradient
Assaf Inbar, Petter Nyman, Francis K. Rengers, Patrick N. J. Lane, Gary J. Sheridan
2018, Geophysical Research Letters (45) 6514-6522
Hillslope asymmetry is often attributed to differential eco‐hydro‐geomorphic processes resulting from aspect‐related differences in insolation. At midlatitudes, polar facing hillslopes are steeper, wetter, have denser vegetation, and deeper soils than their equatorial facing counterparts. We propose that at regional scales, the magnitude in insolation‐driven hillslope asymmetry is sensitive to variations...
Geologic, hydrologic, and water-quality data from multiple-well monitoring sites in the Bunker Hill and Yucaipa Groundwater Subbasins, San Bernardino County, California, 1974–2016
Gregory O. Mendez, Robert Anders, Kelly R. McPherson, Wesley R. Danskin
2018, Data Series 1096
In 1974, the U.S. Geological Survey (USGS), in cooperation with the San Bernardino Valley Municipal Water District, initiated a study to assess the regional groundwater resources in the Bunker Hill Subbasin of the Upper Santa Ana Valley Groundwater Basin in San Bernardino County, California. The study area expanded east into...
Using heat as a tracer to determine groundwater seepage in the Indian River Lagoon, Florida, April–November, 2017
Eric D. Swain, Scott T. Prinos
2018, Open-File Report 2018-1151
The U.S. Geological Survey, in cooperation with the St. Johns River Water Management District, conducted a study to examine water fluxes in two small study areas in the Indian River Lagoon. Vertical arrays of temperature sensors were placed at multiple locations in the lagoon bed to measure temperature time series...
Flooding tolerance of Sagittaria latifolia and Sagittaria rigida under controlled laboratory conditions
Kevin P. Kenow, Brian R. Gray, James E. Lyons
2018, River Research and Applications (34) 1024-1031
Pool‐scale growing‐season water‐level reductions (drawdowns) have been implemented on the Upper Mississippi River in an effort to improve fish and wildlife habitat. Aquatic vegetation is a key habitat component, with perennial emergent species, such as Sagittaria latifolia and Sagittaria rigida, especially important. River managers have assumed the need for continuous drawdown during the...
Expectations of Maurepas Swamp response to a river reintroduction, Louisiana
Ken W. Krauss, Gary P. Shaffer, Richard F. Keim, Jim L. Chambers, William B. Wood, Stephen B. Hartley
2018, Fact Sheet 2018-3072
Mississippi River reintroductions (freshwater diversions) into wetlands previously disconnected from the river have been implemented in southeastern Louisiana as a means to rehabilitate degraded and submerging wetlands. To date, all active Mississippi River reintroductions have targeted marsh habitat. However, a 57 cubic meter per second (2,000 cubic foot per second)...
Interisland genetic structure of two endangered Hawaiian waterbirds: The Hawaiian Coot and Hawaiian Gallinule
Sarah A. Sonsthagen, Robert E. Wilson, Jared G. Underwood
2018, The Condor (120) 863-873
Most of Hawaii's endemic avifauna are species of conservation concern. Some of Hawaii's endangered waterbirds, however, have increased in number as a result of intensive management of wetlands. To inform these conservation efforts, we examined interisland genetic structure and gene flow within 2 Hawaiian endemic waterbirds, the Hawaiian Coot (Fulica...
Effects of an extreme flood event on federally endangered Diamond Darter abundances
Stuart A. Welsh
2018, The American Midland Naturalist (180) 108-118
Extreme flood events can substantially affect riverine systems, modifying instream habitat and influencing fish assemblages and densities. Rare species are especially vulnerable to these disturbance events because of their small population size and often reduced phenotypic heterogeneity. In June 2016 the lower Elk River in West Virginia experienced severe...
River network saturation concept: factors influencing the balance of biogeochemical supply and demand of river networks
W.M. Wollheim, S. Bernal, Douglas A. Burns, J.A. Czuba, C.T. Driscoll, A.T. Hansen, R.T. Hensley, J.D. Hosen, Shreeram Inamdar, S.S. Kaushall, L. E. Koenig, Y. H. Lu, A. Marzadri, P. A. Raymond, D. Scott, R.J. Stewart, P.G. Vidon, E. Wohl
2018, Biogeochemistry (141) 503-521
River networks modify material transfer from land to ocean. Understanding the factors regulating this function for different gaseous, dissolved, and particulate constituents is critical to quantify the local and global effects of climate and land use change. We propose the River Network Saturation (RNS) concept as a generalization of how...
Watershed ‘chemical cocktails’: forming novel elemental combinations in Anthropocene fresh waters
Sujay S. Kaushal, Arthur J. Gold, Susana Bernal, Tammy A. Newcomer Johnson, Kelly Addy, Amy Burgin, Douglas A. Burns, Ashley A. Coble, Eran W. Hood, Yuehan Lu, Paul Mayer, Elizabeth C. Minor, Andrew W. Schroth, Philippe Vidon, Henry F. Wilson, Marguerite A. Xenopolous, Thomas Doody, Joseph G. Galella, Phillip Goodling, Katherine Haviland, Shahan Haq, Barret Wessel, Kelsey L. Wood, Norbert Jaworski, Kenneth T. Belt
2018, Biogeochemistry (141) 281-305
In the Anthropocene, watershed chemical transport is increasingly dominated by novel combinations of elements, which are hydrologically linked together as ‘chemical cocktails.’ Chemical cocktails are novel because human activities greatly enhance elemental concentrations and their probability for biogeochemical interactions and shared transport along hydrologic flowpaths. A new chemical cocktail approach...
Systematic variation in evapotranspiration trends and drivers across the Northeastern United States
Matthew A Vadeboncoeur, Mark B. Green, Heidi Asbjornsen, John L. Campbell, Mary Beth Adams, Elizabeth W. Boyer, Douglas A. Burns, Ivan J Fernandez, Myron J Mitchell, James B. Shanley
2018, Hydrological Processes (32) 3547-3560
The direction and magnitude of responses of evapotranspiration (ET) to climate change are important to understand, as ET represents a major water and energy flux from terrestrial ecosystems, with consequences that feed back to the climate system. We inferred multidecadal trends in water balance in 11 river basins (1940–2012) and...
Understanding the captivity effect on invertebrate communities transplanted into an experimental stream laboratory
Travis S. Schmidt, Holly Rogers, Janet L. Miller, Christopher A. Mebane, Laurie S. Balistrieri
2018, Environmental Toxicology and Chemistry (37) 2820-2834
Little is known about how design and testing methodologies affect the macroinvertebrate communities that are held captive in mesocosms. To address this knowledge gap, we conducted a 32‐d test to determine how seeded invertebrate communities changed once removed from the natural stream and introduced to the laboratory. We evaluated larvae...
Timing and genesis of ore formation in the Qarachilar Cu-Mo-Au deposit, Ahar-Arasbaran metallogenic zone, NW Iran: Evidence from geology, fluid inclusions, O–S isotopes and Re–Os geochronology
Hossein Kouhestani, Mir Ali Asghar Mokhtari, Zhaoshan Chang, Holly J. Stein, Craig A. Johnson
2018, Ore Geology Reviews (102) 757-775
In the Qarachilar Cu-Mo-Au deposit of the Ahar–Arasbaran metallogenic zone (AAMZ), northwest Iran, mineralization occurs as three quartz-sulfide veins that cut granodiorite-quartz monzodiorite rocks of the Qaradagh batholith (QDB). Ore formation can be divided into three stages, with chalcopyrite, molybdenite, and gold-bearing pyrite appearing mainly in the first two stages....
Concentrations of nutrients at the water table beneath forage fields receiving seasonal applications of manure, Whatcom County, Washington, autumn 2011–spring 2015
Stephen E. Cox, Andrew R. Spanjer, Raegan L. Huffman, Robert W. Black, Jack E. Barbash, Nichole M. Embertson
2018, Scientific Investigations Report 2018-5124
The U.S. Geological Survey, in cooperation with the Whatcom Conservation District (WCD), collected groundwater-quality data for roughly 3 years (October 2011–May 2015) from near the water table beneath forage fields receiving regular seasonal applications of liquid dairy manure in Whatcom County, Washington. The work was done as part of...
Upstream migration and spawning success of Chinook salmon in a highly developed, seasonally warm river system
William P. Connor, Kenneth F. Tiffan, James A. Chandler, Dennis W. Rondorf, Billy D. Arnsberg, Kelvin C. Anderson
2018, Reviews in Fisheries Science & Aquaculture (27) 1-50
This review summarizes what is known about the influence of water temperature and velocity on the migration and spawning success of an inland population of Chinook salmon Oncorhynchus tshawytscha. Models are then developed and used to illustrate how migration and spawning success might change if temperatures and velocities increase under a...
Satellite remote sensing estimation of river discharge: Application to the Yukon River Alaska
David M. Bjerklie, Charon M. Birkett, John W. Jones, Claudia C. Carabajal, Jennifer Rover, John W, Fulton, Pierre-Andre Garambois
2018, Journal of Hydrology (561) 1000-1018
A methodology based on general hydraulic relations for rivers has been developed to estimate the discharge (flow rate) of rivers using satellite remote sensing observations. The estimates of discharge, flow depth, and flow velocity are derived from remotely observed water...
Preliminary peak stage and streamflow data for selected U.S. Geological Survey streamgaging stations in North and South Carolina for flooding following Hurricane Florence, September 2018
Toby D. Feaster, J. Curtis Weaver, Anthony J. Gotvald, Katharine Kolb
2018, Open-File Report 2018-1172
Hurricane Florence made landfall as a Category 1 hurricane at Wrightsville Beach, North Carolina, shortly after dawn on September 14, 2018. Once over land, the forward motion of the hurricane slowed to about 2 to 3 miles per hour. Over the next several days, the hurricane delivered historic amounts of...
Susceptibility of Nanophyetus salmincola cercariae to formalin, hydrogen peroxide, and seawater
Paul Hershberger, Bonnie Besijn, Ashley Mackenzie, Mallory Wilmot
2018, Journal of Aquatic Animal Health (31) 56-60
The ability of formalin, PEROX‐AID (hydrogen peroxide), and seawater to kill waterborne Nanophyetus salmincola cercariae was evaluated in vitro. Newly emerged cercariae survived for extended periods in freshwater, with 53–73% survival occurring in negative control groups after 24 h. Exposure to dilutions of formalin reduced this survival time, with 0%...
Preliminary investigation of groundwater quality near a Michigan cemetery, 2016–17
Angela K. Brennan, Carrie E. Givens, Julia G. Prokopec, Christopher J. Hoard
2018, Scientific Investigations Report 2018-5120
The potential effect of cemetery leachate on groundwater quality in the United States has rarely been studied. Nutrients and other constituents associated with decomposition and burial processes (such as embalming) have the potential to reach shallow groundwater and could affect nearby drinking-water sources. The objective of this preliminary investigation was...
Broad-spectrum antiviral JL122 blocks infection and inhibits transmission of aquatic rhabdoviruses
Bethany F. Balmer, Rodman G. Getchell, Rachel L. Powers, Jihye Lee, Tinghu Zhang, Michael E. Jung, Maureen K. Purcell, Kevin Snekvik, Hector C. Aguilar
2018, Virology (525) 143-149
The aquaculture industry is growing rapidly to meet the needs for global protein consumption. Viral diseases in aquaculture are quite challenging due to lack of treatment options as well as limited injection-delivery vaccines, which are costly. Thus, water-immersion antiviral treatments are highly desirable. This study focused on broad-spectrum, light-activated antivirals that target...
Rebuttal to “The case of the Biscayne Bay and aquifer near Miami, Florida: density-driven flow of seawater or gravitationally driven discharge of deep saline groundwater?” by Weyer (Environ Earth Sci 2018, 77:1–16)
Alden M. Provost, Adrian D. Werner, Vincent E. A. Post, Holly A. Michael, Christian D. Langevin
2018, Environmental Earth Sciences (77) 1-6
A recent paper by Weyer (Environ Earth Sci 2018, 77:1–16) challenges the widely accepted interpretation of groundwater heads and salinities in the coastal Biscayne aquifer near Miami, Florida, USA. Weyer (2018) suggests that the body of saltwater that underlies fresh groundwater just inland of the coast is not a recirculating...
The Global food‐energy‐water nexus
Paolo D’Odorico, Kyle Frankel Davis, Lorenzo Rosa, Joel A. Carr, Davide Chiarelli, Jampel Dell’Angelo, Jessica Gephart, Graham K. MacDonald, David A. Seekell, Samir Suweis, Maria Cristina Rulli
2018, Reviews of Geophysics (56) 456-531
Water availability is a major factor constraining humanity's ability to meet the future food and energy needs of a growing and increasingly affluent human population. Water plays an important role in the production of energy, including renewable energy sources and the extraction of unconventional fossil fuels that are expected to...
Integrating encounter theory with decision analysis to evaluate collision risk and determine optimal protection zones for wildlife
B.J. Udell, Julien Martin, R.J. Fletcher, Mathieu Bonneau, Holly H. Edwards, T. Gowan, Stacie K. Hardy, E. Gurarie, C.S. Calleson, C.J. Deutsch
2018, Journal of Applied Ecology (56) 1050-1062
1.Better understanding human‐wildlife interactions and their links with management can help improve the design of wildlife protection zones. One example is the problem of wildlife collisions with vehicles or human‐built structures (e.g. power lines, wind farms). In fact, collisions between marine wildlife and watercraft are among the major threats faced...
Conservation of black bass diversity: An emerging management paradigm
Andrew T. Taylor, James M. Long, Michael D. Tringali, Brandon L. Barthel
2018, Fisheries Magazine (44) 20-36
Black bass (Micropterus spp.) are quintessential North American sportfishes that support economically valuable fisheries and act as keystone predators within aquatic ecosystems. Despite their prominence among North American fish fauna, a number of taxonomic designations are unresolved and novel forms continue to be identified within drainages of the southeastern...
