Ecotoxicological effects of crude oil to early life stage Danio rerio: A molecular, morphological and behavioral approach focused on swim bladder development
Célio F. Mariz, Maria Karolaine de Melo Alves, Jason Tyler Magnuson, Italo Braga de Castro, Felix Augusto Silva de Andrade, Eliete Zanardi-Lamardo, Igor Dias Medeiros, Paulo S. Carvalho
2025, Environmental Toxicology and Chemistry (44) 3363-3374
Proper development and inflation of the swim bladder is essential for swimming and foraging behavior in fish. To characterize the effects of the Brazilian oil spill that occurred between 2019 and 2020 to early life stage fish, the expression of genes involved in swim bladder development were targeted, with biochemical...
The effects of forest harvesting on total and methylmercury concentrations in surface waters depend on harvest practices and physical site characteristics
Karin Eklof, Heleen A. de Wit, Chris S. Eckley, Collin A. Eagles-Smith, Susan L. Eggert, Robert W. Mackereth, Ulf Skyllberg, Liisa Ukonmaanaho, Matti Verta, Craig J Allan, Erik J.S. Emilson, Karen A. Kidd, Carl P.J. Mitchell, John Munthe, Tapani Sallantaus, Joel Segersten, Andrea Garcia Bravo, Randall Kolka, Colin P.R. McCarter, Petri Porvari, Eva Ring, Stephen Sebestyen, Ulf Sikstrom, Therese Zetterberg
2025, Environmental Science and Technology (59) 15944-15955
Forest harvesting can lead to mercury (Hg) mobilization from soils to aquatic habitats and promote the transformation of inorganic Hg to highly neurotoxic and bioaccumulative methyl-Hg (MeHg). Multiple past studies reveal broad variation of stream water MeHg and total Hg (THg) concentrations responses to forest harvesting, which has confounded messaging...
Factors affecting the distribution of water-bearing fractures in the bedrock aquifers of West Virginia
Mark D. Kozar, Mitchell A. McAdoo, Samuel H. Austin, Carson A. Wright
2025, Scientific Investigations Report 2025-5044
Bedrock aquifers cover 23,601 square miles within the State of West Virginia and comprise 97.4 percent of the surficial area within the State; the remaining 2.6 percent (621 square miles) consists of alluvial sand-and-gravel and glacial outwash aquifers bordering the State’s major rivers. While West Virginia’s alluvial aquifers have been...
A flexible conservation and connectivity tool to inform stream conservation prioritization
Sarah G. Winikoff, Craig Paukert, Nicholas Sievert, Jane S. Rogosch
2025, Fisheries
Healthy stream networks rely on diverse fish assemblages and the mobility of fish between habitats to maintain ecosystem structure and function. Anthropogenic structures that impede fish movement (e.g., roads, dams) disrupt life cycles of migratory fishes and isolate fish populations making them more sensitive to environmental stressors. Growing interest in...
Occurrence and tissue distribution of per- and polyfluoroalkyl substances (PFAS) in fishes from waterbodies with point and non-point sources in Massachusetts, USA
Heather L. Walsh, Vicki S. Blazer, Emma Lord, Stephen T. Hurley, Denis R. LeBlanc
2025, Aquatic Toxicology (287)
Per- and polyfluoroalkyl substances (PFAS) are persistent environmental contaminants with known bioaccumulative and toxic effects in aquatic ecosystems. This study assessed site-specific differences in PFAS contamination in fish from Ashumet Pond, Sudbury River, and Great Herring Pond (reference site) in Massachusetts. Fish from Ashumet Pond exhibited the highest PFAS concentrations,...
Hydrologic variability and groundwater age of springs in eastern Oregon and northern Nevada, USA
Henry M. Johnson
2025, Journal of Hydrology (662)
The ecological importance of springs in semiarid regions is far greater than their small size and sparse distribution, yet little is known about the hydrologic functioning of these systems. During 2016–22, 261 springs were visited in the volcanic terrane of eastern Oregon and northern Nevada. When conditions were suitable, measurements...
A streamflow permanence classification model for forested streams that explicitly accounts for uncertainty and extrapolation
Jonathan D. Burnett, Kristin Jaeger, Sherri L Johnson, Steven M. Wondzell, Jason B. Dunham, Matthew Irwin Barker, Emily Dawn Heaston, Nathan Chelgren, Michael G. Wing, Brian Staab, Michael E. Brown
2025, Water Resources Research (61)
Accurate mapping of headwater streams and their flow status has important implications for understanding and managing water resources and land uses. However, accurate information is rare, especially in rugged, forested terrain. We developed a streamflow permanence classification model for forested lands in western Oregon using the latest light detection and...
Hydrogeologic framework and conceptual model of the Red River alluvial aquifer east of Lake Texoma, southeastern Oklahoma, 1980–2022
Chloe Codner, Nicole C. Gammill, Isaac A. Dale, Amy S. Morris, Ethan A. Kirby, Grant M. Graves, Evin J. Fetkovich, Derrick L. Wagner, Jon E. Sanford, Colin A. Baciocco
2025, Scientific Investigations Report 2025-5054
The 1973 Oklahoma Groundwater Law (Oklahoma Statutes §82-1020.5) requires that the Oklahoma Water Resources Board conduct hydrologic investigations of the State’s groundwater basins to support a determination of the maximum annual yield for each groundwater basin. At present (2025), the Oklahoma Water Resources Board has not established a maximum annual...
Long-term dynamics of earthquake swarms in the Yellowstone caldera
Manuel Florez, Bing Q. Li, David R. Shelly, Mia Angulo, Jose Sanabria-Gomez
2025, Science Advances (11)
The factors controlling the spatial distribution and temporal evolution of earthquake swarms in volcanic systems remain unclear. We leverage leading-edge deep learning algorithms and a detailed three-dimensional velocity model to construct a 15-year high-resolution earthquake catalog of the Yellowstone caldera region. More than half of the region’s earthquakes are clustered...
Tailwater residency patterns of Silver Carp at Kentucky Lock and Dam
William R Budnick, Kyle Mosel, Joshua Tompkins, Brent Knights, Jonathan M. Vallazza, Marybeth K. Brey, Andrea K. Fritts
2025, North American Journal of Fisheries Management (45) 603-615
ObjectiveThe management of invasive Silver Carp Hypophthalmichthys molitrix in the Tennessee River basin focuses on removal, and there is interest in extending removal efforts to the tailwater environments of high-head locks and dams along the Tennessee River, such as Kentucky Dam. We used acoustic telemetry data from Silver...
Perfluorodecanesulfonate (PFDS) induces innate immune toxicity through the NF-κB pathway in early life stage zebrafish
Chengwei Zhou, Wei Cheng, Rongrong Xuan, Xinyuan Kang, Jiazhen Wang, Jason Tyler Magnuson, Jialin Li, Di Fang, Wenhui Qiu
2025, Environment International (202)
Perfluorodecanesulfonate (PFDS), a long-chain polyfluoroalkyl substance (PFAS), is widely detected in aquatic environments and increasingly recognized for its environmental persistence and bioaccumulative potential; however, its immunotoxicity remains poorly understood in aquatic biota. In this study, early life stage zebrafish (Danio rerio) were exposed to environmentally relevant concentrations of PFDS and...
Opportunities to better integrate inland fish and fisheries in multilateral environmental agreements
Abigail J. Lynch, Devin Bartley, Beard Jr., Gabriel Borba, Steven J. Cooke, Ian G. Cowx, Vittoria Elliott, Holly Susan Embke, Edith Gondwe, Zeb Hogan, Jonathan G. Low, Jamie Madden, Sui C. Phang, Emma D. Rice, Nicholas A. Sievert, Gretchen L. Stokes, Leonard Akwany, Edward H. Allison, Robert Arlinghaus, Robert I. Arthur, Vidyadhar Atkore, Mahatub Khan Badhon, Claudio Baigun, Jill Brooks, Leandro Castello, Somvilay Chanthalounnavong, Seila Chea, Soksan Chhorn, Michael S. Cooperman, Kim Crisafi, James Dalton, Caitlin Doughty, Jason Earl, Wasseem E. Emam, Rebecca L. Flitcroft, Daria Gundermann, Henry H. Hansen, Ian Harrison, Kathy Hughes, Külli Kangur, Ted Lawrence, Roman Lyach, Bonnie Jean Evaline Myers, Muruganandam Muthiah, Nguyen Thi Kim Quyen, Vivian M. Nguyen, Elizabeth A. Nyboer, Julian D. Olden, Craig P. Paukert, Morgan L. Piczak, Yasmín Quintana, Vu Dang Ha Quyen, Shehu Latunji Akintola, Roshani Shrestha, Sokmoly Uon, Sophorn Uy, Cassie M. VanWynen
2025, Environmental Science & Policy (171)
Inland fish and fisheries are globally important to environmental function and human services, yet their persistent lack of recognition in global agreements, especially multilateral environmental agreements (MEAs), may hinder progress towards biodiversity conservation and human well-being. The connection between inland fish, fisheries, and their ecosystems means that addressing the needs...
The diel niche of brown bears: Constraints on adaptive capacity in human-modified landscapes
A. Donatelli, D. Ćirović, Mark A. Haroldson, Đuro Huber, J. Kindberg, I. Kojola, J. Kusak, G. Mastrantonio, A. Ordiz, S. Reljić, L. Santini, Frank T. van Manen, P. Ciucci
2025, Ecography (2025)
DDiel activity rhythms, representing the behavioral pattern of the sleep–wake cycle, may be adjusted by wildlife in response to changes in environmental conditions. An increase in nocturnality is typically recognized as an adaptive strategy to segregate from humans and mitigate heat stress. Numerous studies have investigated spatial patterns and habitat...
Multi-sensor proximal remote sensing for cover crop biomass estimation at high and moderate spatial resolutions
Jyoti Jennewein, Brian W. Davis, S. Seehaver-Eagan, J. Nicolette, J. Pittman, W. Dean Hively, Avi Goldsmith, C. Hidalgo, C. Reberg-Horton, S.B. Mirsky
2025, Smart Agricultural Technology (12)
Cover crops play a critical role in providing agroecological services such as improving soil health, reducing erosion and nitrogen loss, and suppressing weeds, which are closely tied to their performance such as accumulated biomass. This study evaluated the Active Canopy Sensor (ACS) -214, an active proximal sensing device equipped with...
Selected special conditions affecting peak streamflow and extreme floods in Alaska through water year 2022
Janet H. Curran
2025, Scientific Investigations Report 2025-5056
The U.S. Geological Survey, in cooperation with the Alaska Department of Transportation and Public Facilities, inventoried selected special conditions for annual peak flows and identified extreme floods at streamgages in Alaska through water year 2022 to facilitate hydrologic analysis. Special conditions identified from U.S. Geological Survey gaging records and basin...
Warmer Is deadlier: A meta‐analysis reveals increasing temperatures accentuate disease effects on fisheries hosts
M. M. Tomamichel, K. I. Lowe, K. M.H. Arnold, M. E. Frischer, Brian J. Irwin, C. W. Osenberg, R. J. Hall, J. E. Byers
2025, Ecological Letters (28)
Rapid warming could drastically alter host–parasite relationships, which is especially important for fisheries crucial to human nutrition and economic livelihoods, yet we lack a synthetic understanding of how warming influences parasite-induced mortality in these systems. We conducted a meta-analysis using 266 effect sizes from 52 empirical papers on harvested aquatic...
Relationship-centered engagement bridges the divide between science and management, and enhances climate adaptation
Marissa Weiss, Addie Rose Holland, Anthony W. D’Amato, Linda A. Deegan, William H. Farmer, Christopher Hoving, Ambarish Karmalkar, Alexander W. Latzka, Madeline Magee, Peter B. McIntyre, Toni Lyn Morelli, Michael Notaro, Nancy Olmstead, Richard Palmer, Nancy Pau, Rosalind B. Renfrew, Christine A. Ribic, John Sheppard, Michelle D. Staudinger, Benjamin Zuckerberg, Bethany A. Bradley
2025, BioScience (75) 842-855
The rapid pace of climate change demands changes in management practices. Despite abundant climate adaptation research, the implementation of climate adaptation can lag in the management space. In the present article, we argue that relationship-centered engagement—establishing and maintaining relationships among researchers and natural resource managers—is critical for bridging the research–management...
New insights into gas-driven phase segregation in andesitic enclaves from Mt. Mazama (Crater Lake), USA
Julie Oppenheimer, Katharine V. Cashman, Alison C. Rust, Charles R. Bacon, Amanda Lindoo, Katherine J. Dobson
2025, Bulletin of Volcanology (87)
A key process in active magmatic systems is the “recharge” of deep-sourced mafic magma into cooler, more evolved, and crystal-rich shallow reservoirs; recharge may be the cause of, or response to, eruptive activity. Although compositional evidence for recharge has been extensively documented, physical models of recharge are limited, particularly processes...
Global terrestrial nitrogen fixation and its modification by agriculture
Carla R. Reis Ely, Steven Perakis, Cory C. Cleveland, Duncan Menge, Sasha Reed, Benton Taylor, Sarah A. Batterman, Christopher M. Clark, Timothy E. Crews, Katherine A Dynarski, Maga G. Gei, Michael J. Gundale, David F. Herridge, Sarah E. Jovan, Sian Kou-Giesbrecht, Mark B. Peoples, Johannes Piipponen, Emilio Rodriguez-Caballero, Verity G. Salmon, Fiona M. Soper, Anika P. Staccone, Bettina Weber, Christopher A. Williams, Nina Wurzburger
2025, Nature (643) 705-711
Biological nitrogen fixation (BNF) is the largest natural source of new nitrogen (N) that supports terrestrial productivity1,2, yet estimates of global terrestrial BNF remain highly uncertain3,4. Here we show that this uncertainty is partly because of sampling bias, as field BNF measurements in natural terrestrial ecosystems occur where N fixers are...
Spatiotemporal risk avoidance varies seasonally, relative to risk intensity, in a reestablishing predator–prey system
Cara J. Thompson, Nicole M. Tatman, Zachary J. Farley, Scott T. Boyle, Allison R. Greenleaf, James W. Cain III
2025, Frontiers in Ecology and Evolution (13)
Predation establishes risk, which can indirectly influence prey behavior and ecology. We evaluated the influence of Mexican gray wolves (Canis lupus baileyi) on habitat selection and spatiotemporal predator avoidance strategies of elk (Cervus canadensis). We fit 866 adult female elk with GPS collars across areas of varying wolf densities within...
Using community-reported data to understand how boat speed affects marine wildlife: An example with the Florida manatee
Bea Combs-Hintze, Jeffrey A. Hostetler, C.S. Calleson, B. Basset, C. Ainsworth, Julien Martin
2025, Ecological Solutions and Evidence (6)
Boat collisions are a known and increasing threat to many marine wildlife populations. The Florida manatee Trichechus manatus latirostris is a key example of a species with high boat-related mortality, whose long-term viability and population are limited by human activities in shared habitats. The goal of this work was to quantify...
Tracking persistent declines in suspended sediment in the Lower Mississippi and Atchafalaya Rivers, 1992–2021: Harnessing WRTDSplus to characterize longitudinally varying trends and explore connections to streamflow
Jennifer C. Murphy, Lindsey Ayn Schafer, Scott Mize
2025, Journal of Hydrology (Volume 662)
Suspended sediment (SS) continues a century-long decline in the Lower Mississippi and Atchafalaya Rivers, United States. In this study, we use the WRTDSplus model to estimate concentrations and loads for total, fine (<0.0625 millimeter (mm)), and coarse (≥0.0625 mm) SS for 11 sites....
Modeling current and future distribution of invasive tegu lizards along geopolitical boundaries in the contiguous United States: Implications for invasion threat
Amanda Marie Kissel, Catherine S. Jarnevich, Andrea F. Currylow, Amy A. Yackel Adams
2025, Climate Change Ecology (10)
Historically, constrained temperature ranges limited the spread of invasive herpetofauna into temperate climates, but climate change is predicted to facilitate broader distributions. There are three species of tegu lizards native to South America and available in the pet trade that have a high risk of invasion and deleterious impacts to...
Scalable environmental DNA methods reveal strong associations between landscape-scale forest habitat and insect richness
Rodney T. Richardson, Grace Avalos, Cameron J. Garland, Regina Trott, Olivia Hager, Mark J. Hepner, Clayton D. Raines, Karen Goodell
2025, Preprint
While aquatic environmental DNA (eDNA) methods have reached relative maturity, terrestrial eDNA methods are nascent and have yet to reach widespread use. Field-ready applications require eDNA survey methods where samples are easy to collect by inexperienced practitioners, easy to transport between the field and lab,...
Climate change impacts on plant communities in the sagebrush region—A science synthesis to inform Bureau of Land Management resource management:
Scott M. Carpenter, Martin C. Holdrege, Daniel Rodolphe Schlaepfer, Jessica Phillips, Paul Griffin, William K. Lauenroth, John B. Bradford
2025, Scientific Investigations Report 2025-5045
This report synthesizes current (2024) science-based knowledge related to the impacts of climate change on big sagebrush vegetation in Western North America. This effort was conducted through the U.S. Geological Survey working with the Bureau of Land Management as part of multiple science syntheses to aid management agencies developing environmental...
