Water guns affect abundance and behavior of bigheaded carp and native fish differently
Jose Rivera, David C. Glover, Patrick Kocovsky, James E. Garvey, Mark P. Gaikowski, Nathan R. Jensen, Ryan F. Adams
2018, Biological Invasions (20) 1243-1255
Water guns have shown the potential to repel nuisance aquatic organisms. This study examines the effects of exposure to a 1966.4 cm3 seismic water gun array (two guns) on the abundance and behavior of Bighead Carp Hypophthalmichthys nobilis, Silver Carp H. molitrix (collectively referred to as bigheaded carp) and native fishes...
Occurrence of dichloroacetamide herbicide safeners and co-applied herbicides in midwestern U.S. streams
Emily E. Woodward, Michelle L. Hladik, Dana W. Kolpin
2018, Environmental Science & Technology Letters (5) 3-8
Dichloroacetamide safeners (e.g., AD-67, benoxacor, dichlormid, and furilazole) are co-applied with chloroacetanilide herbicides to protect crops from herbicide toxicity. While such safeners have been used since the early 1970s, there are minimal data about safener usage, occurrence in streams, or potential ecological effects. This study focused on one of these...
The geomorphic legacy of water and erosion control structures in a semiarid rangeland watershed
Mary H. Nichols, Christopher S. Magirl, N.F. Sayre, Jeremy R. Shaw
2018, Earth Surface Processes and Landforms (43) 909-918
Control over water supply and distribution is critical for agriculture in drylands where manipulating surface runoff often serves the dual purpose of erosion control. However, little is known of the geomorphic impacts and legacy effects of rangeland water manipulation infrastructure, especially if not maintained. This study investigated the geomorphic impacts...
Watershed export of fine sediment, organic carbon, and chlorophyll-a to Chesapeake Bay: Spatial and temporal patterns in 1984–2016
Qian Zhang, Joel D. Blomquist
2018, Science of the Total Environment (619-620) 1066-1078
Chesapeake Bay has long experienced nutrient enrichment and water clarity deterioration. This study provides new quantification of loads and yields for sediment (fine and coarse grained), organic carbon (total, dissolved, and particulate), and chlorophyll-a from the monitored nontidal Chesapeake Bay watershed (MNTCBW), all of which are expected to drive estuarine water clarity. We...
Waterbird communities and seed biomass in managed and reference-restored wetlands in the Mississippi Alluvial Valley
Jessica L. Tapp, Matthew M. Weegman, Elisabeth B. Webb, Richard M. Kaminski, J. Brian Davis
2018, Restoration Ecology (26) 591-599
The Natural Resources Conservation Service (NRCS) commenced the Migratory Bird Habitat Initiative (MBHI) in summer 2010 after the April 2010 Deepwater Horizon oil spill in the Gulf of Mexico. The MBHI enrolled in the program 193,000 ha of private wet- and cropland inland from potential oil-impaired wetlands. We evaluated waterfowl and...
A Holocene record of ocean productivity and upwelling from the northern California continental slope
Jason A. Addison, John A. Barron, Bruce P. Finney, Jennifer E. Kusler, David Bukry, Linda E. Heusser, Clark R. Alexander
2018, Quaternary International (469) 96-108
The Holocene upwelling history of the northern California continental slope is examined using the high-resolution record of TN062-O550 (40.9°N, 124.6°W, 550 m water depth). This 7-m-long marine sediment core spans the last ∼7500 years, and we use it to test the hypothesis that marine productivity in the California Current System (CCS)...
Characteristics of peak streamflows and extent of inundation in areas of West Virginia and southwestern Virginia affected by flooding, June 2016
Samuel H. Austin, Kara M. Watson, R. Russell Lotspeich, Stephen J. Cauller, Jeremy S. White, Shaun Wicklein
2018, Open-File Report 2017-1140
Heavy rainfall occurred across central and southern WestVirginia in June 2016 as a result of repeated rounds of torrentialthunderstorms. The storms caused major flooding and flashflooding in central and southern West Virginia with Kanawha,Fayette, Nicholas, and Greenbrier Counties among the hardesthit. Over the duration of the storms, from 8 to...
Characterizing uncertainty in daily streamflow estimates at ungauged locations for the Massachusetts sustainable yield estimator
William H. Farmer, Sara B. Levin
2018, Journal of the American Water Resources Association (54) 198-210
Hydrologic characterization at ungauged locations is one of the quintessential challenges of hydrology. Beyond simulation of historical streamflows, it is similarly important to characterize the level of uncertainty in hydrologic estimates. In tandem with updates to Massachusetts Sustainable Yield Estimator, this work explores the application of...
Using halogens (Cl, Br, I) to understand the hydrogeochemical evolution of drought-derived saline porewater beneath a prairie wetland
Zeno F. Levy, Christopher T. Mills, Zunli Lu, Martin B. Goldhaber, Donald O. Rosenberry, David M. Mushet, Laura K. Lautz, Xiaoli Zhou, Donald I. Siegel
2018, Chemical Geology (476) 191-207
Numerous closed-basin prairie wetlands throughout the Prairie Pothole Region (PPR) of North America maintain moderate surface pond salinities (total dissolved solids [TDS] from 1 to 10 g L− 1) under semiarid climate by accumulation of gypsum and saline lenses of sulfate-rich porewater (TDS > 10 g L− 1) in wetland sediments during droughts. In order to understand the...
Growth potential and habitat requirements of endangered age-0 pallid sturgeon (Scaphirhynchus albus) in the Missouri River, USA, determined using a individual-based model framework
David Deslauriers, Laura B. Heironimus, Tobias Rapp, Brian D. S. Graeb, Robert A. Klumb, Steven R. Chipps
2018, Ecology of Freshwater Fish (27) 198-208
An individual-based model framework was used to evaluate growth potential of the federally endangered pallid sturgeon (Scaphirhynchus albus) in the Missouri River. The model, developed for age-0 sturgeon, combines information on functional feeding response, bioenergetics and swimming ability to regulate consumption and growth within a virtual foraging arena. Empirical data...
Complex mixtures of dissolved pesticides show potential aquatic toxicity in a synoptic study of Midwestern U.S. streams
Lisa H. Nowell, Patrick W. Moran, Travis S. Schmidt, Julia E. Norman, Naomi Nakagaki, Megan E. Shoda, Barbara Mahler, Peter C. Van Metre, Wesley W. Stone, Mark W. Sandstrom, Michelle L. Hladik
2018, Science of the Total Environment (613-614) 1469-1488
Aquatic organisms in streams are exposed to pesticide mixtures that vary in composition over time in response to changes in flow conditions, pesticide inputs to the stream, and pesticide fate and degradation within the stream. To characterize mixtures of dissolved-phase pesticides and degradates in Midwestern streams, a synoptic study was...
Landscape capability models as a tool to predict fine-scale forest bird occupancy and abundance
Zachary G. Loman, William DeLuca, Daniel J. Harrison, Cynthia S. Loftin, Brian W. Rolek, Petra B. Wood
2018, Landscape Ecology (33) 77-91
ContextSpecies-specific models of landscape capability (LC) can inform landscape conservation design. Landscape capability is “the ability of the landscape to provide the environment […] and the local resources […] needed for survival and reproduction […] in sufficient quantity, quality and accessibility to meet the life...
Streambed scour of salmon spawning habitat in a regulated river influenced by management of peak discharge
Andrew S. Gendaszek, Karl D. Burton, Christopher S. Magirl, Christopher P. Konrad
2018, Freshwater Biology (63) 917-927
In the Pacific Northwest of the United States, salmon eggs incubating within streambed gravels are susceptible to scour during floods. The threat to egg-to-fry survival by streambed scour is mitigated, in part, by the adaptation of salmon to bury their eggs below the typical depth of scour....
Pharmaceuticals in water, fish and osprey nestlings in Delaware River and Bay
Thomas G. Bean, Barnett A. Rattner, Rebecca S. Lazarus, Daniel D. Day, S. Rebekah Burket, Bryan W. Brooks, Samuel P. Haddad, William W. Bowerman
2018, Environmental Pollution (232) 533-545
Exposure of wildlife to Active Pharmaceutical Ingredients (APIs) is likely to occur but studies of risk are limited. One exposure pathway that has received attention is trophic transfer of APIs in a water-fish-osprey food chain. Samples of water, fish plasma and osprey plasma were collected from Delaware River and Bay,...
Association between degradation of pharmaceuticals and endocrine-disrupting compounds and microbial communities along a treated wastewater effluent gradient in Lake Mead
Susanna M. Blunt, Joshua D. Sackett, Michael R. Rosen, Mark J. Benotti, Rebecca A. Trenholm, Brett J. Vanderford, Brian P. Hedlund, Duane P. Moser
2018, Science of the Total Environment (622-623) 1640-1648
The role of microbial communities in the degradation of trace organic contaminants in the environment is little understood. In this study, the biotransformation potential of 27 pharmaceuticals and endocrine-disrupting compounds was examined in parallel with a characterization of the native microbial community in water samples from four sites variously impacted...
Patterns and correlates of giant sequoia foliage dieback during California’s 2012–2016 hotter drought
Nathan L. Stephenson, Adrian J. Das, Nicholas J. Ampersee, Kathleen G. Cahill, Anthony C. Caprio, John E. Sanders, A. Park Williams
2018, Forest Ecology and Management (419-420) 268-278
Hotter droughts – droughts in which unusually high temperatures exacerbate the effects of low precipitation – are expected to increase in frequency and severity in coming decades, challenging scientists and managers to identify which parts of forested landscapes may be most vulnerable. In 2014, in the middle of California’s historically...
Bipartite networks improve understanding of effects of waterbody size and angling method on angler–fish interactions
Christopher J. Chizinski, Dustin R. Martin, Daizaburo Shizuka, Kevin L. Pope
2018, Canadian Journal of Fisheries and Aquatic Sciences (75) 72-81
Networks used to study interactions could provide insights to fisheries. We compiled data from 27 297 interviews of anglers across waterbodies that ranged in size from 1 to 12 113 ha. Catch rates of fish species among anglers grouped by species targeted generally differed between angling methods (bank or boat). We constructed...
Trophic pathways supporting Arctic grayling in a small stream on the Arctic Coastal Plain, Alaska
Jason J. McFarland, Mark S. Wipfli, Matthew S. Whitman
2018, Ecology of Freshwater Fish (27) 184-197
Beaded streams are prominent across the Arctic Coastal Plain (ACP) of Alaska, yet prey flow and food web dynamics supporting fish inhabiting these streams are poorly understood. Arctic grayling (Thymallus arcticus) are a widely distributed upper-level consumer on the ACP and migrate into beaded streams to forage during the short...
Seafloor fluid seeps on Kimki Ridge, offshore southern California: Links to active strike-slip faulting
James E. Conrad, Nancy G. Prouty, Maureen A. L. Walton, Jared W. Kluesner, Katherine L. Maier, Mary McGann, Daniel S. Brothers, Emily C. Roland, Peter Dartnell
2018, Deep-Sea Research Part II: Topical Studies in Oceanography (150) 82-91
The Kimki Ridge fluid seeps are located in western Catalina Basin about 60 km southwest of the southern California mainland and at a water depth of approximately 1100 m. Multichannel seismic reflection profiles collected by the U.S. Geological Survey (USGS) in 2014 show acoustic transparency within the Kimki Ridge, suggesting the possibility of fluid seeps and possible sub-seafloor...
Tracing biogeochemical subsidies from glacier runoff into Alaska's coastal marine food webs
Mayumi L. Arimitsu, Keith A. Hobson, D’Arcy N. Webber, John F. Piatt, Eran W. Hood, Jason B. Fellman
2018, Global Change Biology (24) 387-398
Nearly half of the freshwater discharge into the Gulf of Alaska originates from landscapes draining glacier runoff, but the influence of the influx of riverine organic matter on the trophodynamics of coastal marine food webs is not well understood. We quantified the ecological impact of riverine organic matter subsidies to...
Longitudinal thermal heterogeneity in rivers and refugia for coldwater species: Effects of scale and climate change
A.H. Fullerton, Christian E. Torgersen, J.J. Lawer, E. A. Steel, J. L. Ebersole, S.Y. Lee
2018, Aquatic Sciences (80) 15
Climate-change driven increases in water temperature pose challenges for aquatic organisms. Predictions of impacts typically do not account for fine-grained spatiotemporal thermal patterns in rivers. Patches of cooler water could serve as refuges for anadromous species like salmon that migrate during summer. We used high-resolution remotely sensed water temperature data...
Everglades Depth Estimation Network (EDEN)—A decade of serving hydrologic information to scientists and resource managers
Eduardo Patino, Paul Conrads, Eric D. Swain, James M. Beerens
2018, Fact Sheet 2017-3069
IntroductionThe Everglades Depth Estimation Network (EDEN) provides scientists and resource managers with regional maps of daily water levels and depths in the freshwater part of the Greater Everglades landscape. The EDEN domain includes all or parts of five Water Conservation Areas, Big Cypress National Preserve, Pennsuco Wetlands, and Everglades National...
A probe-based quantitative PCR assay for detecting Tetracapsuloides bryosalmonae in fish tissue and environmental DNA water samples
Patrick R. Hutchins, Adam J. Sepulveda, Renee Martin, Lacey Hopper
2018, Conservation Genetics Resources (10) 317-319
A probe-based quantitative real-time PCR assay was developed to detect Tetracapsuloides bryosalmonae, which causes proliferative kidney disease in salmonid fish, in kidney tissue and environmental DNA (eDNA) water samples. The limits of detection and quantification were 7 and 100 DNA copies for calibration standards and T. bryosalmonae was reliably...
Novel application of explicit dynamics occupancy models to ongoing aquatic invasions
Adam Sepulveda
2018, Journal of Applied Ecology (55) 917-925
Identification of suitable habitats, where invasive species can establish, is an important step towards controlling their spread. Accurate identification is difficult for new or slow invaders because unoccupied habitats may be suitable, given enough time for dispersal, while occupied habitats may prove to be unsuitable for establishment.To identify the suitable...
Overview of a comprehensive resource database for the assessment of recoverable hydrocarbons produced by carbon dioxide enhanced oil recovery
Marshall Carolus, Khosrow Biglarbigi, Peter D. Warwick, Emil D. Attanasi, Philip A. Freeman, Celeste D. Lohr
2018, Techniques and Methods 7-C16
A database called the “Comprehensive Resource Database” (CRD) was prepared to support U.S. Geological Survey (USGS) assessments of technically recoverable hydrocarbons that might result from the injection of miscible or immiscible carbon dioxide (CO2) for enhanced oil recovery (EOR). The CRD was designed by INTEK Inc., a consulting company under...
