Assemblage structure, vertical distributions and stable‐isotope compositions of anguilliform leptocephali in the Gulf of Mexico
Andrea M. Quattrini, Jennifer McClain Counts, Stephen J. Artabane, Adela Roa-Varon, Tara C. McIver, Michael Rhode, Steve W. Ross
2019, Journal of Fish Biology (94) 621-647
In August 2007, October 2008 and September–October 2010, 241 Tucker trawl and plankton net tows were conducted at the surface to depths of 1377 m at six locations in the northern and eastern Gulf of Mexico (GOM) to document leptocephalus diversity and determine how assemblage structure, larval size, abundance and isotopic...
The effects of topographic surveying technique and data resolution on the detection and interpretation of geomorphic change
Alan Kasprak, Nathaniel D. Bransky, Joel B. Sankey, Joshua Caster, Temulen T. Sankey
2019, Geomorphology (333) 1-15
Change detection of high resolution topographic data is commonly used in river valleys to quantify reach- and site-scale sediment budgets by estimating the erosion/deposition volume, and to interpret the geomorphic processes driving erosion and deposition. Field survey data are typically collected as point clouds that are often converted to gridded raster datasets and the ultimate choice of grid...
The mighty Susquehanna—extreme floods in Eastern North America during the past two millennia
Michael Toomey, Meagan Cantwell, Steven Colman, Thomas M. Cronin, Jeffrey P. Donnelly, Liviu Giosan, Clifford Heil, Robert L. Korty, Marci E. Marot, Debra A. Willard
2019, Geophysical Research Letters (46) 3398-3407
The hazards posed by infrequent major floods to communities along the Susquehanna River and the ecological health of Chesapeake Bay remain largely unconstrained due to the short length of streamgage records. Here we develop a history of high‐flow events on the Susquehanna River during the late Holocene from flood deposits...
Effects of individual misidentification on estimates of survival in long-term mark–resight studies
A. M. Tucker, Conor P. McGowan, R. A. Robinson, J. A. Clark, James E. Lyons, A. Derose-Wilson, R. Du Feu, G. E. Austin, P. W. Atkinson, N. A. Clark
2019, Condor (121)
All ecological measurements are subject to error; the effects of missed detection (false negatives) are well known, but the effects of mistaken detection (false positives) are less understood. Long-term capture–recapture datasets provide valuable ecological insights and baselines for conservation and management, but where such studies rely on noninvasive re-encounters, such...
Impact of prey occupancy and other ecological and anthropogenic factors on Tiger distribution in Thailand’s Western Forest Complex
Somphot Duangchatrasiri, Pornkamol Jornburom, Sitthichai Jinamoy, Anak Pattanvibool, James E. Hines, Todd W. Arnold, John Fieberg, James L D Smith
2019, Ecology and Evolution (9) 2449-2458
Despite conservation efforts, large mammals such as tigers (Panthera tigris) and their main prey, gaur (Bos gaurus), banteng (Bos javanicus), and sambar (Rusa unicolor), are highly threatened and declining across their entire range. The only large viable source population of tigers in mainland Southeast Asia occurs in Thailand's Western Forest...
Tributaries as biodiversity preserves: An ichthyoplankton perspective from the severely impounded Upper Paraná River
Patricia S. da Silva, Leandro E. Miranda, Sergio Makrakis, Lucileine de Assumpção, Joao Henrique Pinheiro Dias, Maristela Cavicchioli Makrakis
2019, Aquatic Conservation: Marine and Freshwater Ecosystems (29) 258-269
Conservation of fish assemblages in severely impounded rivers has often focused on providing longitudinal and lateral connectivity along the main stem. Less attention has been given to tributaries, some of which remain unimpounded.This study shows that the biodiversity of ichthyoplankton in tributaries to the largest reservoir in the Paraná...
The potential role of very high-resolution imagery to characterise lake, wetland and stream systems across the Prairie Pothole Region, United States
Melanie K. Vanderhoof, Charles R. Lane
2019, International Journal of Remote Sensing (40) 5768-5798
Aquatic features critical to watershed hydrology range widely in size from narrow, shallow streams to large, deep lakes. In this study we evaluated wetland, lake, and river systems across the Prairie Pothole Region to explore where pan-sharpened high-resolution (PSHR) imagery, relative to Landsat imagery, could provide additional...
A General Lake Model (GLM 3.0) for linking with high-frequency sensor data from the Global Lake Ecological Observatory Network (GLEON)
Matthew R. Hipsey, Louise C. Bruce, Casper Boon, Brendan Busch, Cayelan C. Carey, David P. Hamilton, Paul C. Hanson, Jordan S. Read, Eduardo de Sousa, Michael Weber, Luke A. Winslow
2019, Geoscientific Model Development (12) 473-523
The General Lake Model (GLM) is a one-dimensional open-source code designed to simulate the hydrodynamics of lakes, reservoirs, and wetlands. GLM was developed to support the science needs of the Global Lake Ecological Observatory Network (GLEON), a network of researchers using sensors to understand lake functioning and address questions about...
Water column nutrient processing rates in rivermouths of Green Bay (Lake Michigan)
James H. Larson, Mary Anne Evans, Faith A. Fitzpatrick, Paul C. Frost, Sean Bailey, Robert J. Kennedy, William F. James, William B. Richardson, Paul C. Reneau
2019, Biogeochemistry (142) 73-93
Understanding the quantity and form of nutrient loads to large lakes is necessary to understand controls over primary production, phytoplankton community composition and the production of phytotoxins. Nutrient loading estimates to large lakes are primarily made at stream gages that are deliberately placed outside the direct influence of lake processes,...
Human-induced and natural carbon storage in floodplains of the Central Valley of California
Kristin Steger, Peter Fiener, Mark C. Marvin-DiPasquale, Joshua H. Viers, David R. Smart
2019, Science of the Total Environment (651) 851-858
Active floodplains can putatively store large amounts of organic carbon (SOC) in subsoils originating from catchment erosion processes with subsequent floodplain deposition. Our study focussed on the assessment of SOC pools associated with alluvial floodplain soils that are affected by human-induced changes in floodplain deposition and in situ SOC mineralisation due to land use change and drainage. We evaluated depth-dependent...
Design and methods of the U.S. Geological Survey Northeast Stream Quality Assessment (NESQA), 2016
James F. Coles, Karen Riva-Murray, Peter C. Van Metre, Daniel T. Button, Amanda H. Bell, Sharon L. Qi, Celeste A. Journey, Rich W. Sheibley
2019, Open-File Report 2018-1183
During 2016, as part of the National Water-Quality Assessment Project (NAWQA), the U.S. Geological Survey conducted the Northeast Stream Quality Assessment (NESQA) to investigate stream quality in the northeastern United States. The goal of the NESQA was to assess the health of wadeable streams in the region by characterizing multiple...
Dynamic relations for the deposition of sediment on floodplains and point bars of a freely-meandering river
John A. Moody
2019, Geomorphology (327) 585-597
Fluvial features such as floodplains and point bars are built by sediment deposition and sculpted by erosion. Long-term measurements (38 yr) of the cross-section topography of active floodplains and point bars along the freely-meandering Powder River in southeastern Montana, USA (mean daily discharge of 12.5 m3 s−1), were used to develop dynamic...
Effective modeling for Integrated Water Resource Management: A guide to contextual practices by phases and steps and future opportunities
J. Badham, Sondoss Elsawah, Joseph H. A. Guillaume, Serena H Hamilton, Randall J. Hunt, Anthony J. Jakeman, Suzanne A Pierce, Meghna Babbar-Sebens, Baihua Fu, Patricia Gober, Mary C Hill, Takuya Iwanaga, Daniel P Loucks, Wendy S. Merritt, Scott D Peckham, Amy K Richmond, Fateme Zare, Daniel P. Ames, Gabriele Bammer
2019, Environmental Modelling & Software (116)
The effectiveness of Integrated Water Resource Management (IWRM) modeling hinges on the quality of practices employed through the process, starting from early problem definition all the way through to using the model in a way that serves its intended purpose. The adoption and implementation of effective modeling practices need to be guided...
Simulating demography, genetics, and spatially explicit processes to inform reintroduction of a threatened char
Meryl C. Mims, Casey C. Day, Jacob J. Burkhart, Matthew R. Fuller, Jameson Hinkle, Andrew Bearlin, Jason B. Dunham, Patrick W. DeHaan, Zachary A. Holden, Erin L. Landguth
2019, Ecosphere (10) 1-24
The success of species reintroductions can depend on a combination of environmental, demographic, and genetic factors. Although the importance of these factors in the success of reintroductions is well‐accepted, they are typically evaluated independently, which can miss important interactions. For species that persist in metapopulations, movement through and interaction with...
River‐valley morphology, basin size, and flow‐event magnitude interact to produce wide variation in flooding dynamics
Molly Van Appledorn, Matthew E. Baker, Andrew J. Miller
2019, Ecosphere (10) 1-25
Inundation dynamics are a key driver of ecosystem form and function in river‐valley bottoms. Inundation itself is an outcome of multi‐scalar interactions and can vary strongly within and among river reaches. As a result, establishing to what degree and how inundation dynamics vary spatially both within and among river reaches...
Effects of urban multi-stressors on three stream biotic assemblages
Ian R. Waite, Mark D. Munn, Patrick W. Moran, Christopher P. Konrad, Lisa H. Nowell, Michael R. Meador, Peter C. Van Metre, Daren M. Carlisle
2019, Science of the Total Environment (660) 1472-1485
During 2014, the U.S. Geological Survey (USGS) National Water-Quality Assessment(NAWQA) project assessed stream quality in 75 streams across an urban disturbance gradient within the Piedmont ecoregion of southeastern United States. Our objectives were to identify primary instream stressors affecting algal, macroinvertebrate and fish assemblages in wadeable streams. Biotic communities were surveyed once at each site,...
Negligible cycling of terrestrial carbon in many lakes of the arid circumpolar landscape
Matthew J. Bogard, Catherine D. Kuhn, Sarah Ellen Johnston, Robert G. Striegl, Gordon W. Holtgrieve, Mark M. Dornblaser, Robert G. M. Spencer, Kimberly P. Wickland, David E. Butman
2019, Nature Geoscience (12) 180-185
High-latitude environments store nearly half of the planet’s below-ground organic carbon (OC), mostly in perennially frozen permafrost soils. Climatic changes drive increased export of terrestrial OC into many aquatic networks, yet the role that circumpolar lakes play in mineralizing this carbon is unclear. Here we directly evaluate ecosystem-scale OC cycling...
Postglacial faulting near Crater Lake, Oregon, and its possible association with the Mazama caldera-forming eruption
Charles R. Bacon, Joel E. Robinson
2019, Geological Society of America Bulletin (131) 1440-1458
Volcanoes of subduction-related magmatic arcs occur in a variety of crustal tectonic regimes, including where active faults indicate arc-normal extension. The Cascades arc volcano Mount Mazama overlaps on its west an ∼10-km-wide zone of ∼north-south–trending normal faults. A lidar (light detection and ranging) survey of Crater Lake National Park, reveals...
Stratigraphic cross sections of the Niobrara Interval of the Upper Cretaceous Cody Shale in the Bighorn Basin, Wyoming and Montana
Thomas M. Finn
2019, Scientific Investigations Map 3422
The Bighorn Basin is one of many structural and sedimentary basins that formed in the Rocky Mountain foreland during the Laramide orogeny. The basin is nearly 180 miles long, 100 miles wide, and encompasses about 10,400 square miles in northern Wyoming and southern Montana. The basin is bounded by major...
Factors affecting the occurrence of lead and manganese in untreated drinking water from Atlantic and Gulf Coastal Plain aquifers, eastern United States—Dissolved oxygen and pH framework for evaluating risk of elevated concentrations
Craig J. Brown, Jeannie R. B. Barlow, Charles A. Cravotta III, Bruce D. Lindsey
2019, Applied Geochemistry (101) 88-102
Groundwater samples collected during 2012 and 2013 from public-supply wells screened in the Atlantic and Gulf Coastal Plain aquifers of the eastern and southeastern U.S. rarely contained lead or manganese concentrations that exceeded drinking-water limits, despite having corrosive characteristics. Data indicate that the occurrence of dissolved lead and manganese in sampled groundwater, prior to...
Most Earth-surface calcites precipitate out of isotopic equilibrium
Mathieu Daeron, Russell N Drysdale, Marion Peral, Damien Huyghe, Dominique Blamart, Tyler B. Coplen, Franck Lartaud, Giovanni Zanchetta
2019, Nature Communications (10) 1-7
Oxygen-isotope thermometry played a critical role in the rise of modern geochemistry and remains extensively used in (bio-)geoscience. Its theoretical foundations rest on the assumption that 18O/16O partitioning among water and carbonate minerals primarily reflects thermodynamic equilibrium. However, after decades of research, there is no consensus on the true equilibrium 18O/16O fractionation...
Research priorities for freshwater mussel conservation assessment
Noe Ferreira-Rodriguez, Yoshihiro B. Akiyama, Olga V. Aksenova, M. Christopher Barnhart, Yulia V. Bespalaya, Arthur E. Bogan, Ivan N Bolotov, Prem B. Budha, Cristhian Clavijo, Susan J. Clearwater, Gustavo Darrigran, Van Tu Do, Karel Douda, Elsa Froufe, Clemens Gumpinger, Lennart Henrikson, Chris L. Humphrey, Nathan A. Johnson, Olga Klishko, Michael W. Klunzinger, Satit Kovitvadhi, Uthaiwan Kovitvadhi, Jasna Lajtner, Manuel Lopes-Lima, Evelyn A. Moorkens, Shigeya Nagayama, Karl-Otto Nagel, Mitsunori Nakano, Junjiro N. Negishi, Paz Ondina, Panu Oulasvirta, Vincent Prie, Nicoletta Riccardi, Mudite Rudzite, Fran Sheldon, Ronaldo Sousa, David L. Strayer, Motoi Takeuchi, Jouni Taskinen, Amilcar Teixeira, Jeremy S. Tiemann, Maria Urbanska, Simone Varandas, Maxim V. Vinarski, Barry J. Wicklow, Tadeusz Zajac, Caryn C. Vaughn
2019, Biological Conservation (231) 77-87
Freshwater mussels are declining globally, and effective conservation requires prioritizing research and actions to identify and mitigate threats impacting mussel species. Conservation priorities vary widely, ranging from preventing imminent extinction to maintaining abundant populations. Here, we develop a portfolio of priority research topics for freshwater mussel conservation assessment. To address...
US Topo Product Standard
Larry R. Davis, Kristin A. Fishburn, Helmut Lestinsky, Laurence R. Moore, Jennifer L. Walter
2019, Techniques and Methods 11-B2
This document defines a U.S. Geological Survey (USGS) digital topographic map. This map product series, named “US Topo,” is modeled on the now historical USGS 7.5-minute (1:24,000 scale) topographic map series produced and printed by the USGS from 1947 to 2006. US Topo maps have the...
Marshes are the new beaches: Integrating sediment transport into restoration planning
Neil K. Ganju
2019, Estuaries and Coasts (42) 917-926
Recent coastal storms and associated recovery efforts have led to increased investment in nature-based coastal protection, including restoration of salt marshes and construction of living shorelines. In particular, many of these efforts focus on increasing vertical elevation through sediment nourishment, where sediment is removed from the tidal channel and placed...
Evaluation of genetic change from translocation among Gunnison Sage-Grouse (Centrocercus minimus) populations
Shawna J Zimmerman, Cameron L. Aldridge, Anthony D. Apa, Sara J. Oyler-McCance
2019, Ornithological Applications (121)
Maintenance of genetic diversity is important for conserving species, especially those with fragmented habitats or ranges. In the absence of natural dispersal, translocation can be used to achieve this goal, although the success of translocation can be difficult to measure. Here we evaluate genetic change following translocation in Gunnison...
