Hydraulics of freshwater mussel habitat in select reaches of the Big River, Missouri
Maura O. Roberts, Robert B. Jacobson, Susannah O. Erwin
2022, Scientific Investigations Report 2022-5002
The Big River is a tributary to the Meramec River in south-central Missouri. It drains an area that has been historically one of the largest lead producers in the world, and associated mine wastes have contaminated sediments in much of the river corridor. This study investigated hydraulic conditions in four...
Detection and characterization of coastal tidal wetland change in the northeastern US using Landsat time series
Xiucheng Yang, Zhe Zhu, Shirley Qiu, Kevin D. Kroeger, Zhiliang Zhu, Scott Covington
2022, Remote Sensing of Environment (276)
Coastal tidal wetlands are highly altered ecosystems exposed to substantial risk due to widespread and frequent land-use change coupled with sea-level rise, leading to disrupted hydrologic and ecologic functions and ultimately, significant reduction in climate resiliency. Knowing where and when the...
Integration of satellite-based optical and synthetic aperture radar imagery to estimate winter cover crop performance in cereal grasses
Jyoti Jennewein, Brian T. Lamb, W. Dean Hively, Alison Thieme, Resham Thapa, Avi Goldsmith, Phillip Dennison
2022, Remote Sensing (14)
The magnitude of ecosystem services provided by winter cover crops is linked to their performance (i.e., biomass and associated nitrogen content, forage quality, and fractional ground cover), although few studies quantify these characteristics across the landscape. Remote sensing can produce landscape-level assessments of cover crop performance. However,...
Determination of recharge areas that supply decades old groundwater to creeks inhabited by the threatened Okaloosa darter
James E. Landmeyer, W. Scott McBride, William B. Tate
2022, Hydrology (9)
The Okaloosa darter (Etheostoma okaloosae) is a diminutive, perch-like, benthic fish that inhabits only six small, clear, and shallow creek systems that flow almost entirely within Eglin Air Force Base in the panhandle of northwest Florida. Listed as Endangered by the U.S. Fish and Wildlife Service (USFWS) in 1973,...
Prairie wetlands as sources or sinks of nitrous oxide: Effects of land use and hydrology
Brian Tangen, Sheel Bansal
2022, Agricultural and Forest Meteorology (320)
National and global greenhouse gas (GHG) budgets are continually being refined as data become available. Primary sources of the potent GHG nitrous oxide (N2O) include agricultural soil management and burning of fossil fuels, but comprehensive N2O budgets also incorporate less prominent factors such as wetlands. Freshwater wetland GHG flux estimates,...
Assessing placement bias of the global river gauge network
Corey Krabbenhoft, George H. Allen, Peirong Lin, Sarah E Godsey, Daniel C. Allen, Ryan Burrows, Amanda DelVecchia, Ken M. Fritz, Margaret Shanafield, Amy J. Burgin, Margaret Zimmer, Thibault Datry, Walter K. Dodds, C. Nathan Jones, Meryl Mimms, Catherin Franklin, John C. Hammond, Samuel Zipper, Adam S Ward, Katie H. Costigan, Hylke Beck, Julian D. Olden
2022, Nature Sustainability (5) 586-592
Knowing where and when rivers flow is paramount to managing freshwater ecosystems. Yet stream gauging stations are distributed sparsely across rivers globally and may not capture the diversity of fluvial network properties and anthropogenic influences. Here we evaluate the placement bias of a global stream gauge dataset on its representation...
A suction pump sampler for invertebrate drift detects exceptionally high concentrations of small invertebrates that drift nets miss
Jason R. Neuswanger, Erik R. Schoen, Mark S. Wipfli, Carol J. Volk, James W. Savereide
2022, Hydrobiologia (849) 2077-2089
Invertebrate drift is a key process in riverine ecosystems controlling aquatic invertebrate movement, distribution, and availability to fish as prey. However, accurately sampling drift across a wide range of invertebrate sizes is difficult because small invertebrates slip through coarse-mesh drift nets, and fine mesh clogs more easily, which reduces filtration...
Defining oyster resource zones across coastal Louisiana for restoration and aquaculture
Lauren M. Swam, Brady Couvillion, Brian Callam, Jerome F. La Peyre, Megan K. La Peyre
2022, Ocean and Coastal Management (225)
Eastern oysters (Crassostrea virginica) are a critical ecological and commercial resource in the northern Gulf of Mexico facing changing environmental conditions from river management and climate change. In Louisiana, USA, development of restored reefs, and off-bottom aquaculture would benefit from the identification of locations supportive of sustainable oyster populations (i.e., metapopulations) and high consistent production. This...
Deep-ocean polymetallic nodules and cobalt-rich ferromanganese crusts in the global ocean: New sources for critical metals
James R. Hein, Kira Mizell
2022, Book chapter, The United Nations convention on the law of the sea, part XI regime and the international seabed authority: A twenty-five year journey
The transition from a global hydrocarbon economy to a green energy economy and the rapidly growing middle class in developing countries are driving the need for considerable new sources of critical materials. Deep-ocean minerals, namely cobalt-rich ferromanganese crusts and polymetallic nodules, are two such new resources generating interest.Polymetallic nodules are...
The applicability of time-integrated unit stream power for estimating bridge pier scour using noncontact methods in a gravel-bed river
Laura A. Hempel, Helen F. Malenda, John W, Fulton, Mark F. Henneberg, Jay Cederberg, Tommaso Moramarco
2022, Remote Sensing (14)
In near-field remote sensing, noncontact methods (radars) that measure stage and surface water velocity have the potential to supplement traditional bridge scour monitoring tools because they are safer to access and are less likely to be damaged compared with in-stream sensors. The objective of this study was to evaluate the...
Central Andean (28–34°S) flood record 0–25 ka from Salinas del Bebedero, Argentina
Jay Quade, Elad Dente, Allison Cartwright, Adam M. Hudson, Sebastian Jimenez, David McGee
2022, Quaternary Research (109) 102-127
The Salinas del Bebedero occupies an isolated basin in the foreland of central Argentina at 33°S and was flooded repeatedly over past 25 ka. Isotopic evidence demonstrates that this flooding was due to overflow of the nearby Río Desaguadero with waters derived from the distant (≥300 km)...
Integrated hydrologic model development and postprocessing for GSFLOW using pyGSFLOW
Joshua Larsen, Ayman H. Alzraiee, Richard G. Niswonger
2022, Journal of Open Source Software (7)
pyGSFLOW is a python package designed to create new GSFLOW integrated hydrologic models, read existing models, edit model input data, run GSFLOW models, process output, and visualize model data....
Range-wide persistence of the endangered arroyo toad (Anaxyrus californicus) for 20+ years following a prolonged drought
Cynthia Joan Hitchcock, Elizabeth Gallegos, Adam R. Backlin, Russell Barabe, Peter H. Bloom, Kimberly Boss, Cheryl S. Brehme, Christopher W. Brown, Denise Clark, Elizabeth R. Clark, Kevin Cooper, Julie Donnell, Edward L Ervin, Peter Famolaro, Kim M. Guilliam, Jaquelyn Hancock, Nicholas Hess, Steven Howard, Valerie Hubbartt, Patrick Lieske, Robert E. Lovich, Tritia Matsuda, Katherin Meyer-Wilkins, Kamarul Muri, Barry Nerhus, Jeffrey A. Nordland, Brock Ortega, Robert Packard, Ruben Ramirez, Sam C. Stewart, Samuel Sweet, Manna L. Warburton, Jeffrey Wells, Ryan Winkleman, Kirsten Winter, Brian Zitt, Robert N. Fisher
2022, Ecology and Evolution (12)
Prolonged drought due to climate change has negatively impacted amphibians in southern California, U.S.A. Due to the severity and length of the current drought, agencies and researchers had growing concern for the persistence of the arroyo toad (Anaxyrus californicus), an endangered endemic amphibian in this region. Range-wide surveys for this...
Sensitivity of headwater streamflow to thawing permafrost and vegetation change in a warming Arctic
Joshua C. Koch, Ylva Sjoberg, Jonathan A. O’Donnell, Michael P. Carey, Pamela Sullivan, A. Terskaia
2022, Environmental Research Letters (17)
Climate change has the potential to impact headwater streams in the Arctic by thawing permafrost and subsequently altering hydrologic regimes and vegetation distribution, physiognomy and productivity. Permafrost thaw and increased subsurface flow have been inferred from the chemistry of large rivers, but there is limited empirical evidence of the impacts...
Methanogenic archaea in subsurface coal seams are biogeographically distinct: An analysis of metagenomically-derived mcrA sequences
Bronwyn C Campbell, Paul Greenfield, Gong, Elliott P. Barnhart, David J. Midgley, Ian T. Paulsen, Simon C. George
2022, Environmental Microbiology (24) 4065-4078
The production of methane as an end-product of organic matter degradation in the absence of other terminal electron acceptors is common, and has often been studied in environments such as animal guts, soils, and wetlands due to its potency as a greenhouse gas. To date however, the study of the...
Development of continuous bathymetry and two-dimensional hydraulic models for the Willamette River, Oregon
James S. White, J. Rose Wallick
2022, Scientific Investigations Report 2022-5025
The Willamette River is home to at least 69 species of fish, 33 of which are native, including Chinook salmon (Oncorhynchus tshawytscha) and steelhead (Oncorhynchus mykiss). These fish need suitable hydraulic conditions, such as water depth and velocity, to fulfill various stages of their life. Hydraulic conditions are driven...
Introduction to the Delta Smelt flow alteration white papers
Larry R. Brown
2022, Book chapter, IEP technical report #98: White papers providing a synthesis of knowledge relating to Delta Smelt biology in the San Francisco Estuary, emphasizing effects of flow
The management of the quantity and timing of freshwater flow into and through the San Francisco Estuary (SFE) is a perennial source of controversy in California. It is well known that freshwater outflow is a major environmental driver in estuarine ecosystems, including the SFE. However, the estuary is also the...
Dynamic abiotic habitat
Larry R. Brown, Steven B. Slater, Michael L. MacWilliams
2022, Book chapter, IEP technical report #98: White papers providing a synthesis of knowledge relating to Delta Smelt biology in the San Francisco Estuary, emphasizing effects of flow
The factors affecting an organism can be divided into two general classes, abiotic and biotic. Abiotic factors include features of the physical and chemical environment, such as climate, water movement, and many aspects of water quality. Biotic factors refer to those involving living organisms and their interactions, such as the...
Conceptual models of groundwater flow in the Grand Canyon region, Arizona
Jacob E. Knight, Peter W. Huntoon
2022, Scientific Investigations Report 2022-5037
The conceptual models of groundwater flow outlined herein synthesize what is known and hypothesized about the groundwater-flow systems that discharge to the Grand Canyon of Arizona. These models interpret the hydrogeologic characteristics and hydrologic dynamics of the physical systems into a framework for understanding key aspects of the physical systems...
Harmful algal blooms in the Alaskan Arctic: An emerging threat as oceans warm
Donald Anderson, Evangeline Fachon, Katherine Hubbard, Kathi Lefebvre, Peigen Lin, Robert Pickart, Mindy Richlen, Gay Sheffield, Caroline R. Van Hemert
2022, Oceanography (35)
Harmful algal blooms (HABs) present an emerging threat to human and ecosystem health in the Alaskan Arctic. Two HAB toxins are of concern in the region: saxitoxins (STXs), a family of compounds produced by the dinoflagellate Alexandrium catenella, and domoic acid (DA), produced by multiple species in the diatom genus Pseudo-nitzschia. These...
Using microbial source tracking to identify fecal contamination sources in Lake Montauk on Long Island, New York
Tristen N. Tagliaferri, Shawn C. Fisher, Christopher M. Kephart, Natalie Cheung, Ariel P. Reed, Robert J. Welk
2022, Scientific Investigations Report 2022-5038
The U.S. Geological Survey worked in cooperation with the Concerned Citizens of Montauk and the New York State Department of Environmental Conservation to assess the potential sources of fecal contamination entering Lake Montauk, an artificial embayment on the tip of the southern fork of Suffolk County, Long Island, New York....
Potentiometric surface, 2014–15, and water-level differences, 2009 to 2014–15, in the Chicot equivalent aquifer system in southeastern Louisiana
C. Paul Frederick
2022, Scientific Investigations Map 3488
The U.S. Geological Survey constructed the potentiometric surface of the Upland terrace and upper Ponchatoula aquifers and the “400-foot” sand using the altitude of water levels from 121 wells measured January 2014 to March 2015. Differences in water levels in the Upland terrace and upper Ponchatoula aquifers and “400-foot” sand...
Aquatic-life criteria compared to concentrations of cadmium, copper, lead, and zinc in streams near Fort Polk Military Reservation, Louisiana, December 2015–August 2016
Roland W. Tollett
2022, Scientific Investigations Report 2021-5101
The primary focus of this study was to document cadmium, copper, lead, and zinc concentrations in selected streams near the U.S. Army Joint Readiness Training Center (JRTC) and Fort Polk Military Reservation and to compare those values to Federal and State aquatic-life criteria guidelines. The acute aquatic-life criteria used for...
Fijian sea krait behavior relates to fine-scale environmental heterogeneity in old-growth coastal forest: The importance of integrated land–sea management for protecting amphibious animals
Christopher G. Lowe, Gunnar Keppel, Kalisi Waqa, Stefan Peters, Robert N. Fisher, Annette Scanlon, Tamara Osborne-Naikatini, Nunia Thomas-Moko
2022, Ecology and Evolution (12)
The importance of terrestrial coastal ecosystems for maintaining healthy coral reef ecosystems remains understudied. Sea kraits are amphibious snakes that require healthy coral reefs for foraging, but little is known about their requirements of terrestrial habitats, where they slough their skin, digest prey, and breed. Using...
Using a mechanistic framework to model the density of an aquatic parasite Ceratonova shasta
H. E. Robinson, Julie D Alexander, Jerri L Bartholomew, Sascha L Hallett, Nicholas J. Hetrick, Russell Perry, Nicholas A. Som
2022, PeerJ (10)
Ceratonova shasta is a myxozoan parasite endemic to the Pacific Northwest of North America that is linked to low survival rates of juvenile salmonids in some watersheds such as the Klamath River basin. The density of C. shasta actinospores in the water column is typically highest in the spring (March–June), and directly...
