Behavior at short temporal scales drives dispersal dynamics and survival in a metapopulation of brook trout (Salvelinus fontinalis)
Tyler Wagner, Shannon White
2020, Freshwater Biology (66) 278-285
1) Movement has been studied extensively in stream salmonids, and most data suggest that population-level behavior is best described by a leptokurtic distribution. This distribution emphasizes the large proportion of sedentary individuals in a population, which can implicitly lead to assumptions of low population connectivity and overlook the ecological significance...
Decreases in aluminum toxicity and mortality of caged brook trout in Adirondack Mountain Streams
Barry P. Baldigo, Scott D. George
2020, Summary Report 20-35
Mortality of juvenile brook trout and water chemistry were characterized in six western Adirondack streams in northern New York State during spring 2015, 2016, and 2017 and compared with results from comparable tests done between 1980 and 2003 in many of the same streams to assess temporal changes in inorganic...
An analysis of streamflow trends in the southern and southeastern US from 1950-2015
Kirk D. Rodgers, Victor L. Roland II, Anne B. Hoos, Elena Crowley-Ornelas, Rodney Knight
2020, Water (12)
In this article, the mean daily streamflow at 139 streamflow-gaging stations (sites) in the southern and southeastern United States are analyzed for spatial and temporal patterns. One hundred and thirty-nine individual time-series of mean daily streamflow were reduced to five aggregated time series of Z scores for...
colorspace: A toolbox for manipulating and assessing colors and palettes
Achim Zeileis, Jason C. Fisher, Kurt Hornik, Ross Ihaka, Claire D. McWhite, Paul Murrell, Reto Stauffer, Claus O. Wilke
2020, Journal of Statistical Software (96)
The R package colorspace provides a flexible toolbox for selecting individual colors or color palettes, manipulating these colors, and employing them in statistical graphics and data visualizations. In particular, the package provides a broad range of color palettes based on the HCL (hue-chroma-luminance)...
Lateral carbon exports from drained peatlands: An understudied carbon pathway in the Sacramento-San Joaquin Delta, California
Christina M. Richardson, Joseph K. Fackrell, Tamara E. C. Kraus, Megan B. Young, Adina Paytan
2020, Journal of Geophysical Research: Biogeosciences (125)
Degradation of peatlands via drainage is increasing globally and destabilizing peat carbon (C) stores. The effects of drainage on the timing and magnitude of lateral C losses from degraded peatlands remains understudied. We measured spatial and temporal variability in lateral C exports from three drained peat islands in the Sacramento‐San...
Evaluating the impacts of foreshore sand and birds on microbiological contamination at a freshwater beach
Ammar Saffaie, Chelsea J. Weiskerger, Meredith B. Nevers, Muruleedhara Byappanahalli, Mantha S. Phanikumar
2020, Water Research (190)
Beaches along the Great Lakes shorelines are important recreational and economic resources. However, contamination at the beaches can threaten their usage during the swimming season, potentially resulting in beach closures and/or advisories. Thus, understanding the dynamics that control nearshore water quality is integral to effective beach management. There have been...
Post-fire vegetation response in a repeatedly burned low-elevation sagebrush steppe protected area provides insights about resilience and invasion resistance
Tom Rodhouse, Kathryn M. Irvine, Lisa Bowersock
2020, Frontiers in Ecology and Evolution (8)
Sagebrush steppe ecosystems are threatened by human land-use legacies, biological invasions, and altered fire and climate dynamics. Steppe protected areas are therefore of heightened conservation importance but are few and vulnerable to the same impacts broadly affecting sagebrush steppe. To address this problem, sagebrush steppe conservation science is increasingly...
Towards the understanding of hydrogeochemical seismic responses in karst aquifers: A retrospective meta-analysis focused on the Apennines (Italy)
Gilberto Binda, Andrea Pozzi, Alessandro Michetti, Paula Noble, Michael R. Rosen
2020, Minerals (10)
Earthquakes are known to affect groundwater properties, yet the mechanisms causing chemical and physical aquifer changes are still unclear. The Apennines mountain belt in Italy presents a rich literature of case studies documenting hydrogeochemical response to seismicity, due to the high frequency of seismic events and the presence of different...
Use of real-time sensors to temporally characterize water quality in groundwater and surface water in Mason County, Illinois, 2017–19
Lance R. Gruhn, William S. Morrow
2020, Scientific Investigations Report 2020-5108
The persistence of high nitrate concentrations in shallow groundwater has been well documented in the shallow glacial aquifer of Mason County, Illinois. Nitrates in groundwater can be a concern when concentrations exceed 10 milligrams per liter in drinking water. Additionally, nitrate in groundwater can contribute to surface water nitrogen loads...
Geochemistry and age of groundwater in the Williston Basin, USA: Assessing potential effects of shale-oil production on groundwater quality
Peter B. McMahon, Joel M. Galloway, Andrew G. Hunt, Kenneth Belitz, Bryant C. Jurgens, Tyler D. Johnson
2020, Applied Geochemistry
Thirty water wells were sampled in 2018 to understand the geochemistry and age of groundwater in the Williston Basin and assess potential effects of shale-oil production from the Three Forks-Bakken petroleum system (TBPS) on groundwater quality. Two geochemical groups are identified...
Bathymetric and velocimetric surveys at highway bridges crossing the Missouri and Mississippi Rivers on the periphery of Missouri, July–August 2018
Richard J. Huizinga
2020, Scientific Investigations Report 2020-5088
Bathymetric and velocimetric data were collected by the U.S. Geological Survey, in cooperation with the Missouri Department of Transportation, near 7 bridges at 6 highway crossings of the Missouri and Mississippi Rivers on the periphery of the State of Missouri from July 16 to August 13, 2018. A multibeam echosounder...
Predicted pH of groundwater in the Mississippi River Valley alluvial and Claiborne aquifers, south-central United States
James A. Kingsbury, Katherine J. Knierim, Connor J. Haugh
2020, Scientific Investigations Map 3465
Regional aquifers in the Mississippi embayment are the principal sources of water used for public and domestic supply, irrigation, and industrial uses throughout the region. An understanding of how water quality varies spatially, temporally, and with depth are critical aspects to ensuring long-term sustainable use of these resources. A boosted...
Multiple-well monitoring site adjacent to the North and South Belridge Oil Fields, Kern County, California
Rhett R. Everett, Anthony A. Brown, Janice M. Gillespie, Adam Kjos, Nicole C. Fenton
2020, Open-File Report 2020-1116
The U.S. Geological Survey (USGS), in cooperation with the California State Water Resources Control Board, is evaluating several questions about oil and gas development and groundwater resources in California, including (1) the location of groundwater resources; (2) the proximity of oil and gas operations to groundwater and the geologic materials...
Critical shifts in trace metal transport and remediation performance under future low river flows
Patrick A. Byrne, Patrizia Onnis, Robert L. Runkel, Ilaria Frau, Sarah F. L. Lynch, Paul Edwards
2020, Environmental Science & Technology (54) 15742-15750
Exceptionally low river flows are predicted to become more frequent and more severe across many global regions as a consequence of climate change. Investigations of trace metal transport dynamics across streamflows reveal stark changes in water chemistry, metal transformation processes, and...
Assessment of Ambystomatid salamander populations and their breeding habitats in the Delaware Water Gap National Recreation Area
Craig D. Snyder, John A. Young, James T. Julian, Tim L. King, Shanon E. Julian
2020, Scientific Investigations Report 2020-5081
This report presents abundance and occurrence data for three species of ambystomad salamanders (Ambystoma maculatum, A. jeffersonianum, and A. opacum) collected over a 3-year period (2000, 2001, and 2002) at 200 potentional breeding sies within the Delaware Water Gap National Recreation Area (DEWA). In addition, numerous measures of inpond, near-pond,...
Anadromous coastal cutthroat trout Oncorhynchus clarkii clarkii as a host for Argulus pugettensis (Crustacea, Branchiura): Parasite prevalence, intensity and distribution
James P Losee, Simon R M Jones, Caitlin A E McKinstry, William N. Batts, Paul Hershberger
2020, Northwest Science (94) 111-117
Coastal cutthroat trout [Oncorhynchus clarkii clarkii (Richardson, 1836)] from the marine waters of Puget Sound, WA, was documented as a new host for the ectoparasite Argulus pugettensis (Dana, 1852). The prevalence of A. pugettensis was 66% (49 of 74) on cutthroat trout and 0% (0 of 55) on coho salmon [O. kisutch (Walbaum, 1792)] collected during...
Development of a novel framework for modeling field-scale conservation effects of depressional wetlands in agricultural landscapes
Owen P. McKenna, Javier M. Osorio, Katherine D. Behrman, Luca Doro, David M. Mushet
2020, Journal of Soil and Water Conservation (6) 695-703
The intermixed cropland, grassland, and wetland ecosystems of the upper mid-western United States combine to provide a suite of valuable ecological services. Grassland and wetland losses in the upper midwestern United States have been extensive, but government-funded conservation programs have protected and restored hundreds of thousands...
Origin and properties of hydrothermal tremor at Lone Star Geyser, Yellowstone National Park, USA
Avinash Nayak, Michael Manga, Shaul Hurwitz, Atsuko Namiki, Phillip B. Dawson
2020, Journal of Geophysical Research (125)
Geysers are rare geologic features that intermittently discharge liquid water and steam driven by heating and decompression boiling. The cause of variability in eruptive styles and the associated seismic signals are not well understood. Data collected from five broadband seismometers at Lone Star Geyser, Yellowstone National...
Agricultural land-use change alters the structure and diversity of Amazon riparian forests
Leonardo Maracahipes-Santos, Divino Vicente Silverio, Marcia Nunes Macedo, Leandro Maracahipes, Kathi Jo Jankowski, Lucas Navarro Paolucci, Christopher Neill, Paulo Monteiro Brando
2020, Biological Conservation (252)
Riparian forests play key roles in protecting biodiversity and water resources, making them priorities for conservation in human-dominated landscapes, but fragmentation associated with expanding tropical croplands threatens their ecological integrity. We compared the structure of tropical riparian forests within intact and cropland catchments in a region...
Landscape and climatic influences on actual evapotranspiration and available water using the Operational Simplified Surface Energy Balance (SSEBop) Model in eastern Bernalillo County, New Mexico, 2015
Kyle R. Douglas-Mankin, Ryan J. McCutcheon, Aurelia C. Mitchell, Gabriel B. Senay
2020, Scientific Investigations Report 2020-5095
The U.S. Geological Survey, in cooperation with the Bernalillo County Public Works Division, conducted a 1-year study in 2015 to assess the spatial and temporal distribution of evapotranspiration (ET) and available water within the East Mountain area in Bernalillo County, New Mexico. ET and available water vary spatiotemporally because of...
Effectiveness of submerged vanes for stabilizing streamside bluffs
Benjamin O. Lee, Faith A. Fitzpatrick, John A. Hoopes
2020, Journal of Hydraulic Engineering (147)
The effectiveness of submerged vanes for stabilizing streamside bluffs varied over a 10-year monitoring period in a tributary to Lake Superior, United States. Submerged vanes are a river training device used to divert river flows away from eroding banks along meander bends and ultimately hold constant or...
Baseflow age distributions and depth of active groundwater flow in a snow‐dominated mountain headwater basin
Rosemary W.H. Carroll, Andrew H. Manning, Richard G. Niswonger, David W Marchetti, Kenneth H. Williams
2020, Water Resources Research (56)
Deeper flows through bedrock in mountain watersheds could be important, but lack of data to characterize bedrock properties limits understanding. To address data scarcity, we combine a previously published integrated hydrologic model of a snow‐dominated, headwater basin of the Colorado River with a new method for dating baseflow age using...
Measured and calculated nitrate and dissolved organic carbon concentrations and loads at the W.P. Franklin Lock and Dam, S-79, south Florida, 2014-17
Amanda Booth
2020, Open-File Report 2020-1094
The U.S. Geological Survey monitored dissolved nitrate plus nitrite as nitrogen (N) and dissolved organic carbon (DOC) concentrations and calculated loads of these constituents at the W.P. Franklin Lock and Dam (S-79) from April 2014 to December 2017. Flows from Lake Okeechobee controlled by S-77, S-78 and S-79 affect water...
Water temperature controls for regulated canyon-bound rivers
Bryce A. Mihalevich, Bethany Neilson, Caleb A. Buahin, Charles B. Yackulic, John C. Schmidt
2020, Water Resources Research (56)
Many canyon‐bound rivers have been dammed and downstream flow and water temperatures modified. Climate change is expected to cause lower storage in reservoirs and warmer release temperatures, which may further alter downstream flow and thermal regimes. To anticipate potential future changes, we first need to understand the dominant heat transfer...
Using tracer variance decay to quantify variability of salinity mixing in the Hudson River Estuary
John C. Warner, W Rockwill Geyer, David K. Ralston, Tarandeep S. Kalra
2020, Journal of Geophysical Research, Oceans (125)
The salinity structure in an estuary is controlled by time‐dependent mixing processes. However, the locations and temporal variability of where significant mixing occurs is not well‐understood. Here we utilize a tracer variance approach to demonstrate the spatial and temporal structure of salinity mixing in the Hudson River Estuary. We run...
