How quickly do brook trout lose long-term thermal acclimation?
Matthew J. O'Donnell, Amy M. Regish, S.D. McCormick, Benjamin Letcher
2025, Journal of Thermal Biology (129)
Abundances of coldwater adapted stream fish populations are declining largely due to anthropogenic influences, including increased temperature. To persist in streams with unsuitable thermal habitat, fish must move to coldwater patches, acclimate, or adapt to water temperatures above thermal optima. Brook trout, a coldwater adapted salmonid, has previously displayed physiological...
Sediment nutrient dynamics in selected Milwaukee metropolitan area streams, Wisconsin, 2022
Rebecca M. Kreiling, Lynn A. Bartsch, Kenna J. Gierke, Patrik Mathis Perner, Faith A. Fitzpatrick, Hayley T. Olds
2025, Scientific Investigations Report 2025-5012
The U.S. Geological Survey and Milwaukee Metropolitan Sewerage District in Wisconsin have an ongoing partnership to monitor water quality in streams in the Milwaukee metropolitan area and to assess the effects of stream restoration on habitat and water quality. Because sediment nutrient dynamics can improve or further impair water quality,...
A synthesis of freshwater forested wetland soil organic carbon storage
Yadav Sapkota, Jacob F. Berkowitz, Camille Stagg, Ryan R. Busby
2025, Frontiers in Forests and Global Change (8)
Freshwater forested wetlands account for ~76% (918 M ha) of the total global wetland extent. However, freshwater forested wetlands are difficult to distinguish from upland forest due to canopy coverage, the abundance of wetland-nonwetland mosaics, seasonal hydropatterns, and fewer readily observable connections to large surface water bodies relative to marshes and other...
Environmental conditions influencing the abundance of the salmonid ectoparasite Salmincola californiensis across upper Willamette River Reservoirs, Oregon
Kelsi Antonelli, Christina Amy Murphy, Amanda M.M. Pollock, Ivan Arismendi
2025, Aquatic Biology (13)
The freshwater copepod Salmincola californiensis is an ectoparasite of Pacific salmon and trout (Oncorhynchus spp.). High levels of infection by this parasite can significantly damage gills and result in blood loss, affecting the fitness and survival of hosts, and it may hinder recovery efforts of threatened and endangered salmonids. Juvenile...
Estimating indicators of cyanobacterial harmful algal blooms in New York State
Philip Savoy, Rebecca Michelle Gorney, Jennifer L. Graham
2025, Ecological Indicators (173)
Cyanobacteria harmful algal blooms (cyanoHABs) are a global concern for aquatic ecosystem and human health. Limited funding for monitoring programs and inconsistent determination of cyanoHAB occurrence present challenges for identifying commonly effective variables for characterizing cyanoHABs and the development of generalized models. We compiled a combination of water quality measurements,...
Neural network-based temporal ensembling of water depth estimates derived from SuperDove Images
Milad Niroumand-Jadidi, Carl J. Legleiter, Francesca Bovolo
2025, Remote Sensing (17)
CubeSats provide a wealth of high-frequency observations at a meter-scale spatial resolution. However, most current methods of inferring water depth from satellite data consider only a single image. This approach is sensitive to the radiometric quality of the data acquired at that particular instant in time, which could be degraded...
Uncertainty quantification of geophysical and hydrologic parameters estimated from borehole nuclear magnetic resonance data
Burke J. Minsley, Stephanie N. Phillips, Stephanie R. James
2025, JGR Machine Learning and Computation (2)
Borehole nuclear magnetic resonance (bNMR) data are typically used to infer in situ hydrologic properties. Partial water content as a function of pore size is estimated by fitting the measured NMR response to a multi-exponential T2 distribution, and the sum of estimated T2 amplitudes equals the total volumetric water content. From these estimated parameters,...
The North American greenhouse gas budget: Emissions, removals, and integration for CO2, CH4, and N2O (2010–2019): Results From the Second REgional Carbon Cycle Assessment and Processes Study (RECCAP2)
Benjamin Poulter, Guillermo Murray-Tortarolo, Daniel J. Hayes, Philippe Ciais, Robbie M. Andrew, Ana Bastos, Brendan Byrne, David Butman, Josep G. Canadell, Abhishek Chatterjee, Grant Domke, Andrew F. Feldman, Kelsey Foster, Neha Hunka, Robert B. Jackson, Werner A. kurz, Ayia Lindquist, Maodian Liu, Ingrid Luijkx, Arnaud Mialon, Anna M. Michalak, John Miller, Wolfgang A. Obermeier, Naiqin Pan, James T. Randerson, Peter A. Raymond, Pierre Regnier, Laure Resplandy, Gerard Rocher-Ros, Nemesio Rodriquez-Fernandez, Judith A. Rosentreter, Julio Cesar Salazar-Neira, Suzanne E. Tank, Hanqin Tan, Rodrigo Vargas, Yohanna Villalobos, Jonathan A. Wang, Xinyuan Wei, Kimberly Wickland, Christopher J. Williams , Lisamarie Windham-Myers, Christopher W. Woodall, Qing Ying, Zhen Zhang
2025, Global Biogeochemical Cycles (39)
Accurate accounting of greenhouse-gas (GHG) emissions and removals is central to tracking progress toward climate mitigation and for monitoring potential climate-change feedbacks. GHG budgeting and reporting can follow either the Intergovernmental Panel on Climate Change methodologies for National Greenhouse Gas Inventory (NGHGI) reporting or use atmospheric-based “top-down” (TD) inversions or...
Salinas Valley integrated hydrologic and reservoir operations models, Monterey and San Luis Obispo Counties, California
Wesley R. Henson, Randy Hanson, Scott E. Boyce, Joseph A. Hevesi, Elizabeth Rae Jachens
2025, Preprint
The area surrounding the Salinas Valley groundwater basin in Monterey and San Luis Obispo Counties of California is a highly productive agricultural area, contributes significantly to the local economy, and provides a substantial portion of vegetables and other agricultural commodities to the Nation. This region of California provides about half...
Streamflow response to glacier mass loss varies with basin precipitation across Alaska
Janet H. Curran, Brianna Rick, Jeremy S. Littell, Louis C. Sass
2025, Water Resources Research (61)
Diminishing glaciers affect streamflow, and given the extent of glaciers in Alaska and adjacent Canada, continued glacier mass loss is likely to have profound effects on ecosystems sensitive to runoff. The effects of glacier mass loss on streamflow are likely to vary across the wide ranges of basin size, glacier...
Pediment formation and subsequent erosion in Gale crater: Clues to the climate history of Mars
A.B. Bryk, W.E. Dietrich, Kristen A. Bennett, V.K. Fox, C.M. Fedo, M.P. Lamb, E.S. Kite, L.M. Thompson, S. G. Banham, J. Schieber, J.A. Grant, A.R. Vasavada, A.A. Fraeman, Lauren A. Edgar, P. J. Gasda, R.C. Wiens, J.P. Grotzinger, K. Stack-Morgan, R.E. Arvidson, O. Gasnault, S. Le Mouelic, S. Gupta, R.M.E. Williams, R.Y. Sheppard, K.W. Lewis, D.M. Rubin, W. Rapin, M.N. Hughes, M. Turner, S.A. Wilson, J.M. Davis, R.E. Kronyak, L. Le Deit, L.C. Kah, J. Frydenvang, R.J. Sullivan, C.C. Bedford, E. Dehouck, H.E. Newsom, M.C. Malin
2025, Icarus (430)
Evidence of paleo-rivers, fans, deltas, lakes, and channel networks across Mars has prompted much debate about what climate conditions would permit the formation of these surface water derived features. Pediments, gently sloping erosional surfaces of low relief developed in bedrock, have also been identified on Mars. On Earth, these erosional...
Multiyear crop residue cover mapping using narrow-band vs. broad-band shortwave infrared satellite imagery
Brian T. Lamb, W. Dean Hively, Jyoti Jennewein, Alison Thieme, Alexander M. Soroka, Leticia Santos, Daniela Jones, Steven Mirsky
2025, Soil and Tillage Research (251)
Crop residue serves an important role in agricultural systems as high levels of fractional crop residue cover (fR) can reduce erosion, preserve soil moisture, and build soil organic carbon. However, the ability to accurately quantify fR at scale has been limited. In this study we produced annual maps of fR for farmland in Maryland,...
Acute Toxicity of 4-hydroxydiphenylamine (4-HDPA) and N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine-quinone (6PPDQ), transformation products of 6PPD, to early instars of the mayfly, Neocloeon triangulifer
David J. Soucek, Rebecca A. Dorman, Jeffery A. Steevens, Viviane Yargeau, Marco Pineda, Erin Bennett, Chris Metcalfe
2025, Environmental Toxicology & Chemistry (44) 1369-1377
Our analysis of water samples collected during a rain event from two urban rivers in the Greater Toronto area, Ontario, Canada, indicated that selected transformation products (TPs) of the tire antioxidant, N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine (6PPD), including 6PPD-quinone (6PPDQ) and 4-hydroxydiphenylamine (4-HDPA), were present at concentrations >1 µg/L. In acute (96-hr) toxicity tests with...
Nature-based solutions could offset coastal squeeze of tidal wetlands from sea-level rise on the U.S. Pacific coast
Karen M. Thorne, Kevin J. Buffington, Michael Osland, Bogdan Chivoiu, James Grace, Nicholas Enwright, Glenn R. Guntenspergen
2025, Scientific Reports (15)
In this study, we explored the opportunities for tidal wetland landward migration in response to sea-level rise on the Pacific Coast of the United States. By employing a systematic spatial approach, we quantified the available space for wetland migration with sea-level rise across 61 estuarine drainage areas. Although many of...
Assessing the effect of coral reef restoration location on coastal flood hazard along the San Juan Coastline, Puerto Rico
Ramin Familkhalili, Curt D. Storlazzi, Michael Nemeth, Shay Viehman
2025, Frontiers in Marine Science (12)
Coastal resilience has become a pressing global issue due to the growing vulnerability of coastlines to the effects of climate change. Nature-based solutions have emerged as a promising approach to coastal protection to not only enhance coastal resilience, but also restore critical ecosystems. Coral reef restoration has the potential to...
Are we heading towards a global decrease in coregonine catches?
Orlane Anneville, Benjamin Alric, Chun-Wei Chang, Jan Baer, Fabien Bourinet, Alexander Brinker, David B. Bunnell, Chloe Goulon, Kerstin Holmgren, Chih-hao Hsieh, Yamin Janjua, Yu-Chun Kao, Kulli Kangur, Alfred Sandstrom, Eugene A. Silow, Xinhua Zhu
2025, International Journal of Limnology (61)
Coregonines have specific ecological needs, making them potentially very vulnerable to changes in lake conditions. A contemporary concern is that many lakes worldwide are experiencing environmental changes due to anthropogenic pressure and climate warming. Here, we compiled long-term data of coregonine catches from 27 lakes from three continents in the...
Pathways for potential exposure to onshore oil and gas wastewater: What we need to know to protect human health
Ayusha Ariana, Isabelle M. Cozzarelli, Cloelle Danforth, Bonnie McDevitt, Anna Rosofsky, Donna Vorhees
2025, Environmental Health Perspectives (9)
Produced water is a chemically complex waste stream generated during oil and gas development. Roughly four trillion liters were generated onshore in the United States in 2021 (ALL Consulting, 2022, https://www.gwpc.org/wp-content/uploads/2021/09/2021_Produced_Water_Volumes.pdf). Efforts are underway to expand historic uses of produced water to offset freshwater needs in water-stressed regions,...
Spatiotemporal patterns in urban nutrient and suspended sediment loads and stream response to watershed management implementation
Aaron J. Porter
2025, Environmental Monitoring and Assessment (197)
In recent years, local governments have invested heavily in management practices to reduce nutrient and sediment loads. These practices provide localities with nutrient and sediment regulatory reduction credits; however, their effects on water quality are poorly understood at the watershed scale. Long-term watershed-scale monitoring is essential for assessing progress toward...
Lake Ontario August gillnet survey and Lake Trout assessment, 2024
Brian O’Malley, Scott P. Minihkeim, Olivia Margaret Mitchinson, Scott David Stahl, Brian Weidel, Michael Connerton, Jessica Goretzke, Lucus Sunderland, Emma Bloomfield, Collin Farrell, Dimitry Gorsky
2025, Report
Lake Ontario Lake Trout (Salvelinus namaycush) rehabilitation has been assessed with fishery independent surveys to evaluate program benchmarks and compare observations with management objectives since 1983. These surveys provide information on the abundance, strain composition, and performance of stocked Lake Trout, as well as information on levels of natural recruitment,...
Uncertainty reduction for subaerial landslide-tsunami hazards
Katherine R. Barnhart, David L. George, Andrew L. Collins, Lauren N. Schaefer, Dennis M. Staley
2025, Journal of Geophysical Research: Earth Surface (130)
Subaerial rock slopes may generate a tsunami by rapidly moving into the water. Large uncertainty in landslide characteristics propagates into large uncertainty in tsunami hazard, making hazard assessment more difficult for land and emergency managers. Once a potentially tsunamigenic landslide is identified, it may not be clear which landslide characteristics...
Per- and polyfluoroalkyl substances (PFAS) mass flux and mass balance at an aqueous film-forming foam release site in semiarid eastern New Mexico, USA
Erin Louise Gray, Samuel Edwin Potteiger, Trevor Dylan Brannon, Stuart Bryan Norton, Jay Cho, Michael D. Annable
2025, Journal of Contaminant Hydrology (272)
Passive flux meters (PFMs) directly measure groundwater chemistry mass flux and Darcy flux, providing insight into contaminant source-zone architecture and transport properties. This study uses PFMs to characterize PFAS flux in groundwater at a semiarid site with a thick (greater than 90-m) unsaturated zone where groundwater has been contaminated with per-...
Patterns of water-extractable soil organic matter in the US Great Plains: Insights from the Haas Soil Archive
Jonathan J. Halvorson, Angela Hansen, Catherine E. Stewart, Mark A. Liebig
2025, Agrosystems, Geosciences & Environment (8)
Novel approaches that are fast and sensitive are needed to evaluate soil change and integrate soil ecosystem properties. Carbon (C) and nitrogen (N) extracted from soil with water are associated with plant nutrients and microbial activity but information about change over time in the US Great Plains is sparse. We...
The effects of breeding status on common raven movement, home range, and habitat selection
Julia C. Brockman, Peter S. Coates, John C. Tull, Pat J. Jackson, Shawn T. O’Neil, Perry J. Williams
2025, Journal of Wildlife Management (89)
Anthropogenic infrastructure has contributed to increasing common raven (Corvus corax) abundance across the Great Basin region of the United States, particularly in sagebrush ecosystems, where high raven densities are correlated with reduced sage-grouse (Centrocercus urophasianus) nest survival. Our understanding of how raven reproductive behavior affects sage-grouse nest predation is limited,...
Status and trends in the Lake Superior fish community, 2024
Mark R. Vinson, Lori M. Evrard, Isabel Field, Owen Gorman, Sydney Phillips, Nicole M. Watson, Daniel Yule
2025, Report
The U.S. Geological Survey has conducted annual fishery surveys across Lake Superior since 1978 that describe trends in fish species occurrence and relative abundance to inform fisheries management and ecosystem health. In 2024, the Lake Superior fish community was sampled with daytime bottom and surface trawls at 72 nearshore locations...
Do watershed conditions or local climate play a larger role in determining regional stream salamander distributions?
Kristen K. Cecala, Brian J. Halstead, James S. McGrory, John C. Maerz
2025, Hydrobiologia (852) 4053-4067
Anthropogenic influences like land use and climate variability interact with natural heterogeneity to influence the persistence of stream salamanders. Using occupancy modeling in the southern Appalachian Mountains, we investigated the influence of land use, climate, and physical context (e.g., drainage area, elevation) on stream salamander occupancy, noting species, and life...
