Bioconcentration of per- and polyfluoroalkyl substances and precursors in fathead minnow tissues environmentally exposed to aqueous film-forming foam-contaminated waters
Nicholas I. Hill, Jitka Becanova, Simon Vojta, Larry B. Barber, Denis R. LeBlanc, Alan M. Vajda, Heidi M. Pickard, Rainer Lohmann
2024, Environmental Toxicology and Chemistry (43) 1795-1806
Exposure to per- and polyfluoroalkyl substances (PFAS) has been associated with toxicity in wildlife and negative health effects in humans. Decades of fire training activity at Joint Base Cape Cod (MA, USA) incorporated the use of aqueous film-forming foam (AFFF), which resulted in long-term...
River channel response to the removal of the Pilchuck River Diversion Dam, Washington State
Scott W. Anderson, Brett Shattuck, Neil Shea, Catherine M. Seguin, Joe J. Miles, Derek Marks, Natasha Coumou
2024, Northwest Science (97) 134-145
In August 2020, the 3-m tall Pilchuck River Diversion Dam was removed from the Pilchuck River, allowing free fish passage to the upper third of the watershed for the first time in over a century. The narrow, 300-m long impoundment behind the dam was estimated to hold 4,000–7,500 m3 of sand...
Documenting historical anchorworm parasitism of introduced warmwater fishes in the Willamette River Basin, Oregon
Elena Eberhardt, Christina Amy Murphy, William J. Gerth, Peter Konstantinidis, Ivan Arismendi
2024, Northwest Science (97) 113-121
Anchorworms (Lernaea spp.) are freshwater parasitic copepods that use a wide range of hosts. Yet little is known about their prevalence, distribution, and which species are their primary fish hosts in the state of Oregon. Institutional fish collections serve as banks which allow investigators to...
Fish size structure analysis via ordination: A visualization aid
Leandro E. Miranda
2024, North American Journal of Fisheries Management (44) 763-775
ObjectiveVisual aids like length-frequency histograms are widely used to examine fish population status and trends; however, comparing multiple histograms simultaneously becomes cumbersome and inefficient. Complicating matters further, overlaying covariates on histograms to highlight connections with length frequencies can be challenging. An alternative, and the subject of this...
Demographics of a previously undocumented diamondback terrapin (Malaclemys terrapin) population
Daniel J. Catizone, Travis M. Thomas, Christina Romagosa, Margaret Lamont
2024, Estuaries and Coasts (47) 1684-1693
Coastal habitats are some of the most imperiled due to climate change and anthropogenic activities. As such, it is important to understand population dynamics of the species that may play a role in regulating coastal systems. Diamondback terrapins in Northwest Florida have been understudied, which has resulted in a gap...
Earthquake effects surveyed during the nineteenth century as ecological features of Chinookan tidelands
Brian F. Atwater, David K. Yamaguchi, Jessie K. Pearl
2024, Northwest Science (97) 78-98
Lasting effects of a Cascadia earthquake in 1700 were documented during surveys of Chinookan tidelands near the mouth of the Columbia River between 1805 and 1868. The effects resemble estuarine consequences, near Anchorage, of the 1964 Alaska earthquake: fatal drowning of subsided meadows and forests by post-earthquake tides, rebirth of...
Distribution, abundance, and habitat characteristics of Coastal Cactus Wrens (Campylorhynchus brunneicapillus) in San Diego County, California—2023 Data Summary
Suellen Lynn, Barbara E. Kus
2024, Data Report 1196
Executive SummaryWe surveyed for coastal Cactus Wren (Campylorhynchus brunneicapillus) in 507 established plots in San Diego County in 2023, encompassing 4 genetic clusters (Otay, Lake Jennings, Sweetwater/Encanto, and San Pasqual). Two surveys were completed at each plot between March 1 and July 31. Cactus Wrens were detected in 181 plots...
Nihoa and Laysan Island passerines population abundances, trends, and habitat utilization
Trevor Bak, Richard J. Camp, Chris Farmer, Rachel A. Rounds, Sheldon M. Plentovich, John Vetter, Paul C. Banko
2024, Report, Hawaii Cooperative Studies Unit Technical Report Series
Nihoa and Laysan Island, part of the Northwestern Hawaiian Islands, are host to three endangered passerine species—Nihoa finch (Telespiza ultima), Nihoa millerbird (Acrocephalus familiaris kingi), and Laysan finch (Telespiza cantans). Using point-transect distance sampling survey records from 2010 to 2022 for Nihoa and 2013...
Fish assemblage and functional trait responses to small-dam removal
Luke Max Bower, C. A. Marion, M. K. Scott, Kevin Kubach, Andrew Gelder
2024, Freshwater Biology (69) 1043-1056
Dams are one of the greatest threats to freshwater biodiversity and efforts to remove dams to restore riverine systems are increasing. However, dam-removal studies have primarily focused on taxonomic responses to large dam removals with little work on the functional trait responses of...
Retention of p-Chip microtransponders and posttagging survival of small-bodied stream fishes
Joseph Spooner, Jonathan J. Spurgeon
2024, North American Journal of Fisheries Management (44) 799-811
ObjectiveObtaining demographic rates often requires complex open-population capture–mark–recapture (CMR) study designs. Conducting such studies for small-bodied fishes has been limited in part by excessive mortality after tagging procedures and poor tag retention. As new tag types emerge, information regarding fish survival and tag retention over varying time...
Climate driven trends in historical extreme low streamflows on four continents
Glenn A. Hodgkins, Benjamin Renard, Paul H. Whitfield, Gregor Laaha, Kerstin Stahl, Jamie Hannaford, Donald H. Burn, Seth Westra, Anne K. Fleig, Walsczon Terllizzie Araujo Lopes, Conor Murphy, Luis Mediero, Martin Hanel
2024, Water Resources Research (60)
Understanding temporal trends in low streamflows is important for water management and ecosystems. This work focuses on trends in the occurrence rate of extreme low-flow events (5- to 100-year return periods) for pooled groups of stations. We use data from 1,184 minimally altered catchments in Europe, North and South America,...
Solute export patterns across the contiguous USA
Dustin W. Kincaid, Kristen L. Underwood, Scott Douglas Hamshaw, L. Li, Erin C. Seybold, Bryn Stewart, Donna M. Rizzo, Ijaz Ul Haq, Julia N. Perdrial
2024, Hydrological Processes (38)
Understanding controls on solute export to streams is challenging because heterogeneous catchments can respond uniquely to drivers of environmental change. To understand general solute export patterns, we used a large-scale inductive approach to evaluate concentration–discharge (C–Q) metrics across catchments spanning a broad range of catchment attributes and hydroclimatic drivers. We...
Relatively stable pressure effects and time-increasing thermal contraction control Heber geothermal field deformation
Guoyan Jiang, Andrew J. Barbour, Robert John Skoumal, Kathryn Zerbe Materna, Aren Crandall-Bear
2024, Nature Communications (15)
Due to geological complexities and observational gaps, it is challenging to identify the governing physical processes of geothermal field deformation including ground subsidence and earthquakes. In the west and east regions of the Heber Geothermal Field (HGF), decade-long subsidence was occurring despite injection of heat-depleted brines, along with transient reversals...
Visualizing wading bird optimal foraging decisions with aggregation behaviors using individual-based modeling
Simeon Yurek, Donald L. DeAngelis, Hyo Won Lee, Stephen Tennenbaum
2024, Ecological Modelling (493)
Foragers on patchy landscapes must efficiently balance time between searching for and consuming resources to meet their daily energetic requirements. Spatial aggregation foraging behaviors may improve foraging efficiency by sharing information on locations of resource hotspots. Wading birds are an example of patch foragers that form colonial aggregations during the...
Peak streamflow trends in Illinois and their relation to changes in climate, water years 1921–2020
Mackenzie K. Marti, Thomas M. Over
2024, Scientific Investigations Report 2023-5064-B
This report characterizes changes in peak streamflow in Illinois and the relation of these changes to climatic variability, and provides a foundation for future studies that can address nonstationarity in peak-flow frequency analysis in Illinois. Records of annual peak and daily streamflow at streamgages and gridded monthly climatic data (observed...
Evaluation of short-term mussel test for estimating toxicity
Ning Wang, James L. Kunz, Chris D. Ivey, Danielle M. Cleveland, Jeffery A. Steevens
2024, Environmental Toxicology and Chemistry (43) 2020-2025
Effect concentrations of ammonia, nickel, sodium chloride, and potassium chloride from short-term 7-day tests were compared to those from standard chronic 28-day toxicity tests with juvenile mussels (fatmucket, Lampsilis siliquoidea) to evaluate the sensitivities of the 7-day tests. The effect concentrations for nickel (59 µg Ni/L), chloride...
Catchment coevolution and the geomorphic origins of variable source area hydrology
David G Litwin, Gregory E. Tucker, Katherine R. Barnhart, Ciaran Harman
2024, Water Resources Research (60)
Features of landscape morphology—including slope, curvature, and drainage dissection—are important controls on runoff generation in upland landscapes. Over long timescales, runoff plays an essential role in shaping these same features through surface erosion. This feedback between erosion and runoff generation suggests that modeling long-term landscape evolution together...
Did steam boost the height and growth rate of the giant Hunga eruption plume?
Larry G. Mastin, Alexa R. Van Eaton, Shane Cronin
2024, Bulletin of Volcanology (86)
The eruption of Hunga volcano on 15 January 2022 produced a higher plume and faster-growing umbrella cloud than has ever been previously recorded. The plume height exceeded 58 km, and the umbrella grew to 450 km in diameter within 50 min. Assuming an umbrella thickness of...
Helpers show plasticity in their responses to breeder turnover
David Edward Ausband, Sarah B. Bassing
2024, Behavioral Ecology (35)
Nonbreeding helpers can greatly improve the survival of young and the reproductive fitness of breeders in many cooperatively breeding species. Breeder turnover, in turn, can have profound effects on dispersal decisions made by helpers. Despite its importance in explaining group size and predicting the population demography of cooperative breeders, our...
Delayed positive responses of snowshoe hares to prescribed burning in a fire-adapted ecosystem
Laura C. Gigliotti, Emily S. Boyd, Duane R. Diefenbach
2024, Animal Conservation
Wildlife populations near the periphery of a species’ range are vulnerable to changes in habitat conditions and climate. However, habitat management and maintenance can help with the persistence of these susceptible populations. Snowshoe hare (Lepus americanus) populations near the southern extent of their range are at risk of extirpation because...
Uncertainty in ground-motion-to-intensity conversions significantly affects earthquake early warning alert regions
Jessie Saunders, Annemarie S. Baltay Sundstrom, Sarah E. Minson, Maren Bose
2024, The Seismic Record (4) 121-130
We examine how the choice of ground‐motion‐to‐intensity conversion equations (GMICEs) in earthquake early warning (EEW) systems affects resulting alert regions. We find that existing GMICEs can underestimate observed shaking at short rupture distances or overestimate the extent of low‐intensity shaking. Updated GMICEs that...
Conservation genetics of the endangered California Freshwater Shrimp (Syncaris pacifica): Watershed and stream networks define gene pool boundaries
Abdul M. Ada, Amy G. Vandergast, Robert N. Fisher, Darren Fong, Andrew J. Bohonak
2024, Conservation Genetics (25) 1021-1033
Understanding genetic structure and diversity among remnant populations of rare species can inform conservation and recovery actions. We used a population genetic framework to spatially delineate gene pools and estimate gene flow and effective population sizes for the endangered California Freshwater Shrimp Syncaris pacifica. Tissues of 101...
Diel temperature signals track seasonal shifts in localized groundwater contributions to headwater streamflow generation at network scale
David M. Rey, Danielle K. Hare, Jennifer H. Fair, Martin A. Briggs
2024, Journal of Hydrology (639)
Groundwater contributions to streamflow sustain aquatic ecosystem resilience; streams without significant groundwater inputs often have well-coupled air and water temperatures that degrade cold-water habitat during warm low flow periods. Widespread uncertainty in stream-groundwater connectivity across space and time has created disparate...
Artificial intelligence applied to big data reveals that lake invasions are predicted by human traffic and co-occurring invasions
Jessica L. Weir, Wesley Daniel, Kieran Hyder, Christian Skov, Paul A. Venturelli
2024, Biological Invasions (26) 3163-3178
Preventing the spread of aquatic invasive species is an important management action. Identifying the characteristics of lakes that are susceptible to invasion creates an opportunity for management groups to prioritize limited resources for high-risk areas. In this study, we leveraged big data from a popular fishing app and other publicly...
Reproducing age variability in grass carp egg samples from the lower Sandusky River, Ohio, USA, using an egg-drift model
David Soong, P. Ryan Jackson, Patrick M. Kocovsky, Lori Morrison, Tatiana Garcia, Santiago Santacruz, Cindy Chen, Zhenduo Zhu, Holly Susan Embke
2024, Journal of Great Lakes Research (50)
Invasive grass carp (Ctenopharyngodon idella) are currently reproducing in several tributaries to Lake Erie and threatening the Great Lakes ecosystem and fisheries. Grass carp are pelagic river spawners whose fertilized eggs drift downstream from the spawning site, developing as they drift. Variability in spawning time and location together with nonuniform...
