Seasonal movements of nonnative White Catfish in the Penobscot River estuary
Andrea N. Casey, Matthew A. Mensinger, Joseph D. Zydlewski
2025, North American Journal of Fisheries Management
ObjectiveWhite Catfish Ameiurus catus has been introduced to coastal watersheds across the United States. In the Penobscot River, Maine, this species has become increasingly common in upstream habitats that have been made accessible by recent dam removals. We characterized the movements of White Catfish to understand the temporal...
Predicting sediment bulk density for San Francisco Estuary
Samantha C. McGill, Jessica R. Lacy
2025, San Francisco Estuary and Watershed Science (23)
Sediment bulk density (ρ-dry) and particle size are two important parameters for predicting sediment bed erosion. ρ-dry, however, is difficult to measure accurately. The units of ρdry have not been consistently reported in the literature, leading to confusion, particularly in the calculation of sediment budgets that typically require integrating mass-based...
Geochemical and hydrological investigations of historical data collected at the Lee Acres Landfill and Giant Bloomfield Refinery, New Mexico, 1985–2020
Erin L. Gray, Christina L. Ferguson
2025, Scientific Investigations Report 2025-5091
The Lee Acres Landfill and Giant Bloomfield Refinery are adjacent properties near the City of Farmington, New Mexico, each having undergone monitoring and remediation related to historical site activities. At the landfill, site cleanup has included the installation of a capillary barrier over former liquid waste lagoons and periodic monitoring...
Exploring atmospheric deposition chemistry data across the United States
Ryan C. McCammon, Noel A. Deyette, Gregory A. Wetherbee
2025, Fact Sheet 2025-3041
The National Atmospheric Deposition Program (NADP) collects atmospheric data to monitor air pollution effects on the quality of United States water supplies and ecosystems. The NADP requires consistent data collection at fixed locations and is governed by a committee with participation by many Federal and State agencies, universities, Tribes, and private companies. NADP conducts a spring...
Designs for cyanobacterial harmful algal bloom monitoring in the Sacramento–San Joaquin Delta, California
Keith Bouma-Gregson, Lisa Lucas, Andrea Cecile Jaegge, Dulcinea Marie Avouris, Emily T. Richardson, Jacob Aaron Zwart, Tamara E. C. Kraus
2025, Preprint
Cyanobacterial harmful algal blooms (CHABs) are a growing concern in freshwater environments. These blooms can lead to degraded water quality, ecosystem disruptions, and public health threats due to the production of potent cyanotoxins. The Sacramento–San Joaquin Delta (California, USA; the Delta) has experienced CHABs since 1999, including CHABs that produce...
Imidacloprid in United States rivers, 2013–2022: Persistent presence and emerging chronic hazard
Samuel Adam Miller, Travis S. Schmidt, Larry B. Barber, Michelle L. Hladik, Dana W. Kolpin, Megan E. Shoda, Sarah M. Stackpoole
2025, Environmental Science & Technology (59) 26702-26715
Imidacloprid, a neonicotinoid insecticide, is used for agricultural and nonagricultural purposes and is toxic to nontarget organisms at low concentrations in aquatic ecosystems. A total of 12,547 water samples were collected from 2013 to 2022 from 77 rivers across the United States (U.S.) and were analyzed to...
Simulation of groundwater flow in Wake County, North Carolina, 2000 through 2070
Dominick J. Antolino, Gerard J. Gonthier, Georgina M. Sanchez
2025, Scientific Investigations Report 2025-5087
In 2019, the U.S. Geological Survey and Wake County Environmental Services began a collaborative study to evaluate groundwater resources and long-term groundwater availability in the county’s fractured-rock groundwater system. Wake County, in central North Carolina, is experiencing rapid population growth, associated land development, and changing water use. Hydrogeologic data including...
River ice controls permafrost bank erosion across an Arctic delta
J Arcuri, Irina Overeem, Marisa Repasch, R. S. Anderson, S. P. Anderson, Joshua C. Koch, Frank Urban
2025, Earth Surface Processes and Landforms (50)
Bank erosion in Arctic rivers helps shape channel geometry, mobilizes carbon from permafrost and influences sediment delivery to the Arctic Ocean. On Alaska's Arctic coastal plain, rivers begin flowing during snowmelt in late spring while extensive river ice persists in channels, such that hydraulics are altered and water is kept...
Present and future coastal flooding hazard for Long Island, NY and Long Island Sound (NY/CT), USA
Salme Ellen Cook, Liv M. Herdman
2025, Preprint
Coastal flooding and the associated damages due to storms are increasing with sea level rise around the world, with regional variability in the severity of impacts., Researchers and resource managers need to better understand and predict the future shifts in coastal flooding due to these processes to plan for resilient...
Projecting management-relevant change of undeveloped coastal barriers with the Mesoscale Explicit Ecogeomorphic Barrier model (MEEB) v1.0
Ian Robert Reeves, Andrew D. Ashton, Erika E. Lentz, Christopher R. Sherwood, Davina Passeri, Sara Zeigler
2025, Geoscientific Model Development (18) 9319-9348
Models of coastal barrier geomorphic and ecologic change are valuable tools for understanding and predicting when, where, and how barriers evolve and transition between ecogeomorphic states. Few existing models of barrier systems are designed to operate over spatiotemporal scales congruous with effective management practices (i.e., decades/kilometers, referred to herein as...
Report of the River Master of the Delaware River for the period December 1, 2017–November 30, 2018
Kendra L. Russell, William J. Andrews, Amy R. McHugh
2025, Open-File Report 2025-1051
Executive Summary A Decree of the Supreme Court of the United States entered June 7, 1954 (New Jersey v. New York, 347 U.S. 995), established the position of Delaware River Master within the U.S. Geological Survey. In addition, the Decree authorizes the diversion of water from the Delaware River Basin and...
Estimation of dynamic geologic CO2 storage resources in the Illinois Basin, including effects of brine extraction, anisotropy, and hydrogeologic heterogeneity
Michelle R. Plampin, Steven T. Anderson, Stefan Finsterle, Ashton M. Wiens
2025, Frontiers in Earth Science (13)
Since the vast majority of carbon dioxide (CO2) storage resources in the United States are in deep saline aquifers, optimizing the use of these saline storage resources could be crucial for efficient development of geologic CO2 storage (GCS) resources and basin- or larger-scale deployment of GCS in the country. Maximum CO2 injection...
Quality of groundwater used for domestic supply in the Gilroy-Hollister basin and surrounding areas, California, 2022
Kirsten E. Faulkner, Bryant C. Jurgens
2025, Scientific Investigations Report 2025-5097
More than 2 million Californians rely on groundwater from domestic wells for drinking-water supply. This report summarizes a 2022 California Groundwater Ambient Monitoring and Assessment Priority Basin Project (GAMA-PBP) water-quality survey of 33 domestic and small-system drinking-water supply wells in the Gilroy-Hollister Valley groundwater basin and the surrounding areas, where more...
Environmental DNA monitoring of invasive Central American boas in St. Croix at Salt River Bay National Historical Park and Ecological Preserve (SARI)
Caitlin Beaver, Alexis B. Tays, Wilfre Fuentes Santos, Madison E.A. Harman, Kristen A. Ewen, Evan L. Gwilliam, Margaret Hunter
2025, Science Report NPS/SR—2025/367
Invasive Central American boas (Boa imperator) have established a reproducing population on the western side of St. Croix, U.S. Virgin Islands but prevalence throughout the island is largely unknown. The large snakes threaten endemic and endangered species through competition and predation, jeopardizing island biodiversity. Environmental DNA (eDNA) methods were used...
Disentangling geomorphic equifinality in sediment and hydrologic connectivity through the analyses of landscape drivers of hysteresis
Jong Cho, J. William Lund, Grady Ball, Jeb E. Brown, Allen C. Gellis, Laura N. Gurley, Scott Douglas Hamshaw, Jeffrey Stephen Kwang, Andrew Roy Laws, Gregory E. Noe, Gretchen P. Oelsner, Francis Parchaso, Cara L. Peterman-Phipps, Katherine Skalak, Nicholas Alan Sutfin
2025, Earth Surface Processes and Landforms (50)
Sources, transport mechanisms and pathways of fine sediment in river systems are dependent on a multitude of climatic, geomorphic and anthropogenic factors, resulting in geomorphic equifinality, in which it is difficult to parse how different landscape processes affect sediment transport across different spatiotemporal scales. The objectives of this study are...
Rare milkvetch (Astragalus) persistence at a utility-scale solar energy facility in the Mojave Desert
Tiffany J. Pereira, Claire C Karban, Lara A. Kobelt, Seth Munson
2025, Frontiers in Ecology and Evolution (13)
Utility-scale solar energy (USSE) development is driving the projected growth in global renewable energy capacity but comes with environmental tradeoffs. New, alternative construction methods are promoted to minimize impacts to soils, vegetation, and hydrology; however, the disturbance created by these methods requires further investigation. We evaluated the population of a...
Summer snow determines the depth to ice-cemented ground under dry permafrost in Antarctica
C. P. McKay, M. Marinova, Kaj E. Williams, M. Mellon
2025, Antarctic Science
Dry permafrost underlain by ice-cemented permafrost has been reported in several locations in Antarctica. Initially thought to be relic ice, it is now understood that this subsurface ice is in equilibrium with the surface conditions, although it is not in equilibrium with the atmosphere. We use year-round data from University...
The acoustic-Doppler current profiler (ADCP): A comprehensive tool for river-reach hydromorphodynamics
Gábor Fleit, Marian Muste, Sándor Baranya, Dongsu Kim, Amanda Whaling, Tate McAlpin, Hojun You
2025, Advances in Water Resources (206)
This paper introduces the use of acoustic Doppler current profiler (ADCP) measurements as input for the Acoustic Mapping Velocimetry (AMV) method, a technique for characterizing the dynamics of riverine bedforms. The performance of this new approach, ADCP-AMV, is compared with input from a multibeam echosounder through a...
Potential thiamine deficiency of phytoplankton across a productivity gradient and seasons in Ohio lakes
Freya Elizabeth Rowland, Michael J. Vanni, Nicole M. Hayes, Clifford E. Kraft
2025, Freshwater Biology (70)
Although nitrogen and phosphorus deficiency of algal blooms have been the focus of substantial attention, organic nutrients can limit algal growth in aquatic systems. Growing evidence indicates thiamine (vitamin B1) can influence the community of primary producers in marine systems, but comparatively little is known about the effect of...
Temporal changes in nutrient concentrations in the Lower Grand River and selected drainage basins, Missouri and Iowa, during the Mississippi River Basin Healthy Watersheds Initiative (2010–23)
Brock J.W. Kamrath, Courtney N. Lauderback, Jennifer C. Murphy
2025, Scientific Investigations Report 2025-5099
This report describes a cooperative study by the U.S. Geological Survey and Missouri Department of Natural Resources that evaluated temporal changes in total nitrogen (TN) and total phosphorus (TP) concentrations in the Lower Grand River hydrologic unit. The study focused on trends since 2010, when the basin was designated as...
An evaluation of the effects of different deicing salt application rates on three watersheds in Essex County, New York
Kristina Gutchess, Natasha Scavotto, Amanda Dondero, Joshua Woda, Neil Terry, Kirk Smith, John Williams
2025, Scientific Investigations Report 2025-5062
The U.S. Geological Survey, in cooperation with the New York State Department of Transportation, evaluated the effects of different deicing salt application rates on surface water, groundwater, and highway runoff quality near State highways in northern New York. Three reaches of State highways were tested with different deicing treatments between...
Detection of viral, bacterial, and protozoan pathogens and microbial source tracking markers in paired large- and small-volume water samples
Joe Heffron, Joel P. Stokdyk, Aaron D. Firnstahl, Rachel M. Cook, Claire E. Hruby, Mark A. Borchardt
2025, ES&T Water
When sampling for waterborne microbes, researchers may need to diverge from recommended sample volumes due to logistical constraints, novel targets, or challenging matrices, with little guidance about the potential impact on results. In field studies, we measured bacteria, viruses, and protozoa (15 quantitative polymerase chain reaction assays)...
Estimating flood discharges at selected annual exceedance probabilities for unregulated, rural streams in Vermont, 2023
Scott A. Olson
2025, Scientific Investigations Report 2025-5088
This report provides estimates of flood discharge at selected annual exceedance probabilities (AEPs) for streamgages in and adjacent to Vermont and equations for estimating flood discharges at AEPs of 50-, 20-, 10-, 4-, 2-, 1-, 0.5-, and 0.2-percent (recurrence intervals of 2-, 5-, 10-, 25-, 50-, 100-, and 500-years, respectively)...
How high? Identifying elevation thresholds to guide coastal marsh restoration
Emily N. Fromenthal, Camille L. Stagg, Jena A. Moon, Taylor Abshier, Omar Alawneh, Jack A. Cadigan, Daniel A. Gallegos, Brian D. Harris, Nia R. Hurst, Navid H. Jafari, Todd Merendino, Matthew R. Nelson, Michael J. Osland, Philip Pauling, Michael Rezsutek, Colt R. Sanspree, Rachel Katherine Villani
2025, Restoration Ecology
IntroductionCoastal marshes are highly valuable ecosystems facing threats from rising sea levels and intensifying storm events. To elevate marsh surfaces and prevent loss of ecosystem services, the beneficial use of dredged material (BUDM) is increasingly being implemented across the United States.ObjectivesThe objective of this study was to aid decision-makers and...
Groundwater structures fish growth and production across a riverscape
Jeffrey R. Baldock, Robert Al-Chokhachy, Annika W. Walters
2025, Freshwater Biology (70)
Landscapes are composed of habitat patches and conditions that vary across space and time. While habitat variability and complexity can support important ecological processes and ecosystem services, the dynamic nature of habitats can also constrain organismal growth and production as optimal conditions are fleeting. In riverine ecosystems, groundwater discharge...
