Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 10351
Perfluorooctane sulfonamide induced autotoxic effects on the zebrafish immune system Perfluorooctane sulfonamide induced autotoxic effects on the zebrafish immune system
Perfluorooctane sulfonamide (PFOSA) is an immediate perfluorooctanesulfonate (PFOS) precursor (PreFOS). Previous studies have shown PFOSA to induce stronger toxic responses compared to other perfluorinated compounds (PFCs). However, the specific nature of PFOSA-induced toxicity, whether autonomous or mediated by its metabolite PFOS, has not been fully elucidated. This study...
Authors
Honghong Chen, Yao Zou, Xingyuan Kang, Ge Yang, Xinghe Yang, Yingying Yao, Jason Tyler Magnuson, Xinde Cao, Wenhui Qiu, Elvis Zu Genbo, Chunmiao Zheng
Four decades of data indicate that planted mangroves stored up to 75% of the carbon stocks found in intact mature stands Four decades of data indicate that planted mangroves stored up to 75% of the carbon stocks found in intact mature stands
Mangroves’ ability to store carbon (C) has long been recognized, but little is known about whether planted mangroves can store C as efficiently as naturally established (i.e., intact) stands and in which time frame. Through Bayesian logistic models compiled from 40 years of data and built from 684 planted mangrove stands worldwide, we found that biomass C stock culminated at 71 to 73% to...
Authors
Carine F. Bourgeois, Richard A. MacKenzie, Sahadev Sharma, Rupesh K. Bhomia, Nels G. Johnson, Andre S. Rovai, Thomas A. Worthington, Ken Krauss, Kangkuso Analuddin, Jacob J. Bukoski, Jose Alan Castillo, Angie Elwin, Leah Glass, Tim C. Jennerjahn, Mwita M. Mangora, Cyril Marchand, Michael Osland, Ismael A. Ratefinjanahary, Raghab Ray, Severino G. Salmo, Sigit D. Sasmito, Rempei Suwa, Pham Hong Tinh, Carl C. Trettin
Low-level dietary clothianidin exposure preferentially causes prepupal mortality of monarch butterflies (Danaus plexippus) Low-level dietary clothianidin exposure preferentially causes prepupal mortality of monarch butterflies (Danaus plexippus)
Data from prior research indicate the prepupal stage of the monarch butterfly life cycle is more sensitive to clothianidin exposure than the larval stage. A set of experiments was conducted to determine if the dietary clothianidin exposures that cause prepupal mortality are environmentally relevant. Monarch larvae were raised from egg to pupae on clothianidin-contaminated swamp milkweed...
Authors
Timothy Bargar
Multidisciplinary characterisation of the biodiversity, geomorphology, oceanography and glacial history of Bowditch Seamount in the Sargasso Sea Multidisciplinary characterisation of the biodiversity, geomorphology, oceanography and glacial history of Bowditch Seamount in the Sargasso Sea
The first multidisciplinary characterisation of Bowditch Seamount in the Sargasso Sea was conducted to provide new baseline knowledge of the biodiversity, geomorphology, oceanography and glacial history of this seamount. A dropframe camera transect 1483–1562 m deep on the seamount documented 77 megafaunal taxa including Vulnerable Marine Ecosystem indicator taxa such as sponges, cold...
Authors
Lea-Anne Henry, Igor Yashayaev, Claude Hillaire-Marcel, F. Javier Murillo, Ellen Kenchington, Struan Smith, Jenny Maccali, Jill Bourque, Louis L. Whitcomb, J. Murray Roberts
Side-scan sonar as a tool for measuring fish populations: Current state of the science and future directions Side-scan sonar as a tool for measuring fish populations: Current state of the science and future directions
Side-scan sonar (SSS) is a powerful tool that can be used to address many key questions in fisheries science. In principle, SSS uses dual transducers to transmit a narrow-beam, wide-angle acoustic signal as the survey vessel transits an area. The intensity of reflected sound is recorded to generate an image mosaic comprised of benthic substrates and targets in the water column, including...
Authors
Josey Lee Ridgway, John A. Madsen, Jesse Robert Fischer, Robin D. Calfee, Matthew Ross Acre, David C. Kazyak
Application of a workflow to determine the feasibility of using simulated streamflow for estimation of streamflow frequency statistics Application of a workflow to determine the feasibility of using simulated streamflow for estimation of streamflow frequency statistics
Streamflow records from hydrologic models are attractive for use in operational hydrology, such as a streamflow frequency analysis. The amount of bias inherent to simulated streamflow from hydrologic models is often unknown, but it is likely present in derivative products. Therefore, a workflow may help determine where streamflow frequency analysis is credibly feasible from simulated...
Authors
Amanda Whaling, Kelly Sanks, William H. Asquith, Kirk D. Rodgers
The National Ocean Biodiversity Strategy The National Ocean Biodiversity Strategy
President Biden has been clear that the ocean is central to life on Earth. As he has proclaimed, “the ocean powers millions of jobs; feeds and sustains us; and is a rejuvenating source of inspiration, exploration, and recreation.” The Biden-Harris Administration has worked hard to fulfill the President’s goal to protect and conserve at least 30% of U.S. waters by 2030. The ocean faces...
Authors
Gabrielle Canonico, J. Emmett Duffy, Masha Edmonson, Katie Fillingham, Abigail Benson, Kelsey Bisson, Amanda Demopoulos, Beth Hinchey, Katsumi Matsumoto, Chris Meyer, James Price, Elaine Shen, Woody Turner, Mike Weise, Andrea Vander Woude, Lauren Wenzel
Detection of periodic peaks in Karenia brevis concentration consistent with the time-delay logistic equation Detection of periodic peaks in Karenia brevis concentration consistent with the time-delay logistic equation
The logistic equation models single-species population growth with a sigmoid curve that begins as exponential and ends with an asymptotic approach to a final population determined by natural system carrying capacity. But the population of a natural system often does not stabilize as it approaches carrying capacity. Instead, it exhibits periodic change, sometimes with very large...
Authors
Bruce E. Kurtz, James E. Landmeyer, James K. Culter
Satellite telemetry reveals high-use internesting areas and international foraging extent for loggerhead turtles tagged in southeast Florida, USA Satellite telemetry reveals high-use internesting areas and international foraging extent for loggerhead turtles tagged in southeast Florida, USA
Developing conservation strategies for highly migratory marine species relies on understanding their spatial distributions. Nesting populations of female loggerhead (Caretta caretta) turtles typically travel from widely dispersed foraging areas and make use of common internesting areas between nesting events. Protection of these areas is essential to the conservation of this species. In...
Authors
Glenn D. Goodwin, Kristen Hart, Abby C. Evans, Derek A. Burkholder
Spaceborne imaging spectroscopy enables carbon trait estimation in cover crop and cash crop residues Spaceborne imaging spectroscopy enables carbon trait estimation in cover crop and cash crop residues
Purpose Cover crops and reduced tillage are two key climate smart agricultural practices that can provide agroecosystem services including improved soil health, increased soil carbon sequestration, and reduced fertilizer needs. Crop residue carbon traits (i.e., lignin, holocellulose, non-structural carbohydrates) and nitrogen concentrations largely mediate decomposition rates and amount...
Authors
Jyoti Jennewein, W. Dean Hively, Brian T. Lamb, Craig S.T. Daughtry, Resham Thapa, Alison Thieme, Chris Reberg-Horton, Steven Mirsky
Representation of surface-water flows using Gradient-Related Discharge in an Everglades Network Representation of surface-water flows using Gradient-Related Discharge in an Everglades Network
The Everglades Depth Estimation Network interpolates water-level gage data to produce daily water-level elevations for the Everglades in south Florida. These elevations were used to estimate flow vectors (gradients and directions) and volumetric flow rates using the Gradient-Related Discharge in an Everglades Network (GARDEN) application developed by the U.S. Geological Survey in...
Authors
E. Swain, T. Adams