Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 9967
Acute toxicity and clotting times of anticoagulant rodenticides to red-toothed (Odonus niger) and black (Melichthys niger) triggerfish, fathead minnow (Pimephales promelas), and largemouth bass (Micropterus salmoides)
Anticoagulant rodenticides (ARs) areused in rateradication efforts on island wildlife refuges. ARbait pellets can get into coralreefareasduring broadcasting and leadto exposure ofnon-target organisms, such as marine fishes. The objective of this study was to determine the sensitivity of representative saltwater fishes, Red-toothed triggerfish (Odonus niger) and Black triggerfish (Melichthys niger), and
Authors
Rachelle Riegerix, Mike Tanner, Robert W. Gale, Donald E. Tillitt
Influence of remediation on sediment toxicity within the Grand Calumet River, Indiana, USA
The Grand Calumet River (GCR), located in northern Indiana, is contaminated due to a wide range of historical industrial activities. This study was conducted to determine the influence of sediment remediation within the GCR on concentrations of chemical contaminants and toxicity to sediment-dwelling organisms. Between 2005 and 2016, sediments with high concentrations of metals and toxic organic co
Authors
Jeffery Steevens, John M. Besser, Rebecca A. Dorman, Daniel W. Sparks
Expert bioblitzes facilitate non-native fish tracking and interagency partnerships
Documenting the distribution and composition of non-native species populations can be challenging, especially when species cross jurisdictional boundaries that require interagency coordination. Herein I report the development of three tools that have been used in Florida over the past seven years to assist with tracking of non-native fishes: 1) an overarching organization to increase coordination
Authors
Pamela J. Schofield
Throughfall reduction x fertilization: Deep soil water usage in a clay rich ultisol under loblolly pine in the Southeast USA
Forests in the Southeast USA are predicted to experience a moderate decrease in precipitation inputs over this century that may result in soil water deficiency during the growing season. The potential impact of a drier climate on the productivity of managed loblolly pine (Pinus taeda L.) plantations in the Southeast USA is uncertain. Access to water reserves in deep soil during drought periods may
Authors
Jiaguo Qi, Daniel M. Markewitz, Mary Ann McGuire, Lisa Samuelson, Eric Ward
Multi-region assessment of pharmaceutical exposures and predicted effects in USA wadeable urban-gradient streams
Human-use pharmaceuticals in urban streams link aquatic-ecosystem health to human health. Pharmaceutical mixtures have been widely reported in larger streams due to historical emphasis on wastewater-treatment plant (WWTP) sources, with limited investigation of pharmaceutical exposures and potential effects in smaller headwater streams. In 2014–2017, the United States Geological Survey measured 111
Authors
Paul M. Bradley, Celeste A. Journey, Daniel T. Button, Daren Carlisle, B. J. Huffman, Sharon L. Qi, Kristin M. Romanok, Peter C. Van Metre
By
Water Resources Mission Area, Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology, Kansas Water Science Center, New Jersey Water Science Center, Ohio-Kentucky-Indiana Water Science Center, Oklahoma-Texas Water Science Center, Oregon Water Science Center, Pennsylvania Water Science Center, South Atlantic Water Science Center (SAWSC)
Passive seismic survey of sediment thickness, Dasht-e-Nawar basin, eastern Afghanistan
Exploration of water resources is needed for public supply, extraction of mineral resources, and economic development in Afghanistan. Remotely-sensed data are useful for identifying the general nature of surface sediments, however, “boots on the ground” geophysical surveys or drilling programs are needed to quantify the thickness of sediments or aquifers. The nature of such investigations presents
Authors
Thomas J. Mack
Identification of Acara (Cichlidae: Cichlasoma) established in Florida, USA
The Black Acara, Cichlasoma bimaculatum (Linnaeus, 1758), was first reported as introduced to Florida in 1965. Native to Venezuela, Guyana, Suriname, western French Guiana, and northern Brazil, the species is now distributed throughout Florida’s southern peninsula. Examination of live and preserved acara from Central Florida, heretofore identified as Black Acara, reveal the presence of an addition
Authors
Robert H Robins, Mary E. Brown, Ryan A Crutchfield
Field observations of wind waves in Upper Delaware Bay with living shorelines
Constructed oyster reefs (CORs) provide shore protections and habitats for fish and shellfish communities via wave energy attenuation. However, the processes and mechanism of CORs on wave attenuation remain unclear, thus limiting the effective assessment of CORs for shoreline protection. This paper presents results of a field investigation on wave characteristics and wave spectral variations along
Authors
Ling Zhu, Q. Chen, Hongqing Wang, William D. Capurso, L.M. Niemoczynski, Kelin Hu, Gregg Snedden
Rapid peat development beneath created, maturing mangrove forests: Ecosystem changes across a 25-year chronosequence
Mangrove forests are among the world’s most productive and carbon‐rich ecosystems. Despite growing understanding of factors controlling mangrove forest soil carbon stocks, there is a need to advance understanding of the speed of peat development beneath maturing mangrove forests— especially in created and restored mangrove forests that are intended to compensate for ecosystem functions lost during
Authors
Michael J. Osland, Laura C. Feher, Amanda C. Spivak, Janet A. Nestlerode, Alejandro E. Almario, Nicole Cormier, Andrew From, Ken W. Krauss, Marc J. Russell, Federico Alvarez, Darrin D. Dantin, James E. Harvey, Camille L. Stagg
Forecasting future beach width- A case study along the Florida Atlantic coast
Historical cross-shore positions of the shoreline and dune base were used as inputs for a Kalman filter algorithm to forecast the positions of these features in the year 2028. The beach width was also computed as the cross-shore distance between the forecasted 2028 shoreline and dune-base positions. While it does not evaluate the suitability of a nesting beach or identify optimal nesting habitat,
Authors
Joseph W. Long, Rachel E. Henderson, David M. Thompson
Herpetofauna occupancy and community composition along a tidal swamp salinity gradient
Occupancy patterns of herpetofauna in most tidal freshwater swamps are unknown. Tidal freshwater swamps currently face multiple threats, including salinization, which can influence their associated plant and animal communities. The impacts of salinization to herpetofauna communities in tidal freshwater swamps have not been assessed. To improve predictions regarding these herpetofauna, we conducted
Authors
Sidney T Godfrey, J. Hardin Waddle, Robert F Baldwin, William H. Conner, William C Bridges, Jamie A. Duberstein
Soil shear strength losses in two fresh marshes with variable increases in N and P loading
We measured soil shear strength (SSS) from 2009 to 2018 in two hydrologically distinct freshwater marshes dominated by Panicum hemitomon after nitrogen (N) and phosphorous (P) were applied to the surface in spring. The average SSS averaged over 100 cm depth in the floating and anchored marshes declined up to 30% throughout the profiles and with no apparent differences in the effects of the low, me
Authors
R. Eugene Turner, Christopher M. Swarzenski, James E. Bodker