Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 10480
The concept of land bridge marshes in the Mississippi River Delta and implications for coastal restoration The concept of land bridge marshes in the Mississippi River Delta and implications for coastal restoration
Louisiana has high coastal wetland loss rates due to natural processes such as subsidence and anthropogenic activities such as construction of river levees and dams, pervasive alteration of surface hydrology by local industries such as oil and gas, and navigation. With the exception of the Atchafalaya River discharge area, most of Louisiana's marsh coastline is retreating and coastal...
Authors
John W. Day, Robert R. Twilley, Angelina Freeman, Brady Couvillion, Tracy Quirk, Navid H. Jafari, Giulio Mariotti, Rachael Hunter, Charles Norman, G. Paul Kemp, John R. White, Ehab Meselhe
A novel assembly pipeline and functional annotations for targeted sequencing: A case study on the globally threatened Margaritiferidae (Bivalvia: Unionida) A novel assembly pipeline and functional annotations for targeted sequencing: A case study on the globally threatened Margaritiferidae (Bivalvia: Unionida)
The proliferation of genomic sequencing approaches has significantly impacted the field of phylogenetics. Target capture approaches provide a cost-effective, fast and easily applied strategy for phylogenetic inference of non-model organisms. However, several existing target capture processing pipelines are incapable of incorporating whole genome sequencing (WGS). Here, we develop a new...
Authors
André Gomes-dos-Santos, Elsa Froufe, John M. Pfeiffer, Nathan Johnson, Chase H. Smith, Andre M. Machado, L. Filipe C. Castro, Van Tu Do, Akimasa Hattori, Nicole Garrison, Nathan V. Whelan, Ivan N. Bolotov, Ilya V. Vikhrev, Alexander V. Kondakov, Mohamed Ghamizi, Vincent Prie, Arthur E. Bogan, Manuel Lopes Lima
Quantifying uncertainty in coastal salinity regime for biological application using quantile regression Quantifying uncertainty in coastal salinity regime for biological application using quantile regression
Salinity regimes in coastal ecosystems are highly dynamic and driven by complex geomorphic and hydrological processes. Estuarine biota are generally adapted to salinity fluctuation, but are vulnerable to salinity extremes. Characterizing coastal salinity regime for ecological studies therefore requires representing extremes of salinity ranges at time scales relevant to ecology (e.g...
Authors
Simeon Yurek, Micheal S Allen, Mitchell J. Eaton, David Chagaris, Nathan Reaver, Julien Martin, Peter C Frederick, Mark Dehaven
The potential for coral reef restoration to mitigate coastal flooding as sea levels rise The potential for coral reef restoration to mitigate coastal flooding as sea levels rise
The ability of reefs to protect coastlines from storm-driven flooding hinges on their capacity to keep pace with sea-level rise. Here, we show how and whether coral restoration could achieve the often-cited goal of reversing the impacts of coral-reef degradation to preserve this essential function. We combined coral-growth measurements and carbonate-budget assessments of reef-accretion...
Authors
Lauren T. Toth, Curt D. Storlazzi, Elizabeth M. Whitcher, Ilsa B. Kuffner, Ellen Quataert, Johan Reyns, Robert T. McCall, Anastasios Stathakopoulos, Zandy Hillis-Starr, Nathaniel H. Holloway, Kristin A. Ewen, Clayton G. Pollock, Tess Code, Richard B. Aronson
Modeling impacts of saltwater intrusion on methane and nitrous oxide emissions in tidal forested wetlands Modeling impacts of saltwater intrusion on methane and nitrous oxide emissions in tidal forested wetlands
Emissions of methane (CH4) and nitrous oxide (N2O) from soils to the atmosphere can offset the benefits of carbon sequestration for climate change mitigation. While past study has suggested that both CH4 and N2O emissions from tidal freshwater forested wetlands (TFFW) are generally low, the impacts of coastal droughts and drought-induced saltwater intrusion on CH4 and N2O emissions...
Authors
Hongqing Wang, Zhaohua Dai, Ken Krauss, Carl C. Trettin, Gregory B. Noe, Andrew J. Burton, Eric Ward
Hydrology, water-quality, and watershed characteristics in 15 watersheds in Gwinnett County, Georgia, water years 2002–20 Hydrology, water-quality, and watershed characteristics in 15 watersheds in Gwinnett County, Georgia, water years 2002–20
The U.S. Geological Survey, in cooperation with Gwinnett County Department of Water Resources, established the Long-Term Trend Monitoring program in 1996 to monitor and analyze the hydrologic and water-quality conditions in Gwinnett County, Georgia. Gwinnett County is a suburban to urban area northeast of the city of Atlanta in north-central Georgia. The monitoring program currently...
Authors
Brent T. Aulenbach, Joshua C. Henley, Kristina G. Hopkins
A scuticociliate causes mass mortality of Diadema antillarum in the Caribbean Sea A scuticociliate causes mass mortality of Diadema antillarum in the Caribbean Sea
Echinoderm mass mortality events shape marine ecosystems by altering the dynamics among major benthic groups. The sea urchin Diadema antillarum, virtually extirpated in the Caribbean in the early 1980s by an unknown cause, recently experienced another mass mortality beginning in January 2022. We investigated the cause of this mass mortality event through combined molecular biological and
Authors
Ian Hewson, Isabella T. Ritchie, James S. Evans, Ashley Altera, Donald Behringer, Erin Bowman, Marilyn E. Brandt, Kayla A. Budd, Ruleo A. Camacho, Tomas O. Cornwell, Peter D. Countway, Aldo Croquer, Gabriel A. Delgado, Christopher M. DeRito, Elizabeth Duermit-Moreau, Ruth Francis-Floyd, Samuel Gittens, Leslie Henderson, Alwin Hylkema, Christina A. Kellogg, Yasu Kiryu, Kimani A. Kitson-Walters, Patricia Kramer, Judith C. Lang, Harilaos Lessios, Lauren Liddy, David Marancik, Stephen Nimrod, Joshua T. Patterson, Marit Pistor, Isabel C. Romero, Rita Sellares-Blasco, Moriah L. B. Sevier, William C. Sharp, Matthew Souza, Andreina Valdez-Trinidad, Marijn van der Laan, Brayan Vilanova-Cuevas, Maria Villalpando, Sarah D. Von Hoene, Matthew Warham, Tom Wijers, Stacey M. Williams, Thierry M. Work, Roy P. Yanong, Someira Zambrano, Alizee Zimmermann, Mya Breitbart
Understanding and mitigating thiaminase activity in silver carp Understanding and mitigating thiaminase activity in silver carp
A deficiency of thiamine (vitamin B1), an essential cofactor for enzymes involved in metabolic processes, can be caused by the enzyme thiaminase. Thiaminase in food stocks has been linked to morbidity and mortality due to thiamine depletion in many ecologically and economically important species. Thiaminase activity has been detected in certain bacteria, plants, and fish species...
Authors
Patricia C. Wolfe, Amber M. Tuske, Donald E. Tillitt, Fred Allen, Katie A. Edwards
Community for data integration 2019 project report Community for data integration 2019 project report
The U.S. Geological Survey Community for Data Integration annually supports small projects focusing on data integration for interdisciplinary research, innovative data management, and demonstration of new technologies. This report provides a summary of the 14 projects supported in fiscal year 2019 and outlines their goals, activities, and accomplishments. Proposals in 2019 were...
Authors
Amanda N. Liford, Caitlin M. Andrews, Aparna Bamzai-Dodson, Joseph A. Bard, David S. Blehert, John B. Bradford, Wesley M. Daniel, Sara L. Caldwell Eldridge, Frank L. Engel, Jason A. Ferrante, Amy K. Gilmer, Margaret E. Hunter, Jeanne M. Jones, Benjamin Letcher, Frances L. Lightsom, Richard R. McDonald, Leah E. Morgan, Sasha C. Reed, Leslie Hsu
By
Ecosystems Mission Area, Water Resources Mission Area, Science Synthesis, Analysis, and Research Program, Science Analytics and Synthesis (SAS), Volcano Hazards Program, Community for Data Integration (CDI), Geology, Geophysics, and Geochemistry Science Center, Geosciences and Environmental Change Science Center, National Wildlife Health Center, Oklahoma-Texas Water Science Center, Southwest Biological Science Center, Volcano Science Center, Western Geographic Science Center, Wetland and Aquatic Research Center , Woods Hole Coastal and Marine Science Center, Science Data Management
The evolution of natural and developed barriers under accelerating sea levels The evolution of natural and developed barriers under accelerating sea levels
Communities residing on barrier islands depend upon the ability of barriers to withstand forcings such as waves, sea-level rise, and storms, particularly under stresses from climate change. Using a barrier island evolution model, we compare barrier response to linear versus accelerating sea-level rise. Results suggest that barriers are more likely to drown under accelerating rather than...
Authors
Rose Elizabeth Palermo, Andrew D. Ashton, Di Jin, Porter Hoagland, Jorge Lorenzo-Trueba
Reconstructing the geomorphic evolution and sediment budget history of a dynamic barrier island: Anclote Key, Florida Reconstructing the geomorphic evolution and sediment budget history of a dynamic barrier island: Anclote Key, Florida
Decadal to centennial variations in sediment availability are a primary driver of coastal change within barrier systems. Models help explore how barrier morphology relates to past changes in magnitude of sediment availability, but this requires insights and validation from field efforts. In this study, we investigate the progradation of Anclote Key via its morphostratigraphy, a presently...
Authors
Daniel J. Ciarletta, Jennifer L. Miselis, Julie Bernier, Arnell S. Forde, Shannon A. Mahan
Mode and provenance of sediment deposition on a transgressive marsh Mode and provenance of sediment deposition on a transgressive marsh
In this study, we use foraminifera as environmental indicators to aid in computing the historical volumetric inputs of estuarine sediments to adjacent marsh. These data can help assess the importance of estuarine sediment inputs to marsh accretion. The Grand Bay system (GBS), located on the southern coast of Alabama and Mississippi, has been described as a “self-cannibalizing bay-marsh...
Authors
Christopher G. Smith, Alisha M. Ellis, Kathryn E.L. Smith