Unified Interior Regions

Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands)

Regions L2 Landing Page Tabs

Filter Total Items: 5,343
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Year Published: 2019

Putative mitochondrial sex determination in the Bivalvia: Insights from a hybrid transcriptome assembly in freshwater mussels

Bivalves exhibit an astonishing diversity of sexual systems, with genetic and environmental determinants of sex, and possibly the only example of mitochondrial genes influencing sex determination pathways in animals. In contrast to all other animal species in which strict maternal inheritance (SMI) of mitochondria is the rule, bivalves possess a...

Capt, Charlotte; Renaut, Sebastien; Stewart, Donald; Johnson, Nathan; Breton, Sophie

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Year Published: 2019

Temperature thresholds for black mangrove (Avicennia germinans) freeze damage, mortality, and recovery in North America: Refining tipping points for range expansion in a warming climate

Near the tropical‐temperate transition zone, warming winter temperatures are expected to facilitate the poleward range expansion of freeze‐sensitive tropical organisms. In coastal wetlands of eastern and central North America, freeze‐sensitive woody plants (mangroves) are expected to expand northward into regions currently dominated by freeze‐...

Osland, Michael; Day, Richard; Hall, Courtney T.; Feher, Laura; Armitage, Anna R.; Cebrian, Just; Dunton, Kenneth H.; Hughes, Randall; Kaplan, David; Langston, Amy K.; Macy, Aaron; Weaver, Carolyn A.; Anderson, Gordon H.; Cummins, Karen; Feller, Ilka C.; Snyder, Caitlin M.

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Year Published: 2019

Informing sea turtle outreach efforts to maximize effectiveness

Most sea turtle (Cheloniidae) species worldwide are endangered or threatened, with threats causing harm to sea turtles predominantly human‐induced. Thus, prevention of further declines to these imperiled species will require alteration of human behaviors. Regulations, incentives, and environmental education are 3 strategies that could be used to...

Swindall, Jessica E.; Ober, Holly K.; Lamont, Margaret; Carthy, Raymond

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Year Published: 2019

Potentiometric surface of the Mississippi River Valley alluvial aquifer, spring 2016

A potentiometric surface map for spring 2016 was created for the Mississippi River Valley alluvial (MRVA) aquifer using selected available groundwater-altitude data from wells and surface-water-altitude data from streamgages. Most of the wells were measured annually or one time after installation, but some wells were measured more than one time or...

McGuire, Virginia L.; Seanor, Ronald C.; Asquith, William H.; Kress, Wade; Strauch, Kellan R.
McGuire, V.L., Seanor, R.C., Asquith, W.H., Kress, W.H., and Strauch, K.R., 2019, Potentiometric surface of the Mississippi River Valley alluvial aquifer, spring 2016: U.S. Geological Survey Scientific Investigations Map 3439, 14 p., 5 sheets, https://doi.org/10.3133/sim3439.

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Year Published: 2019

Photosynthetic and respiratory responses of two bog shrub species to whole ecosystem warming and elevated CO2 at the boreal-temperate ecotone

Peatlands within the boreal-temperate ecotone contain the majority of terrestrial carbon in this region, and there is concern over the fate of such carbon stores in the face of global environmental changes. The Spruce and Peatland Response Under Changing Environments (SPRUCE) facility aims to advance the understanding of how such peatlands may...

Ward, Eric; Warren, Jeffrey M .; McLennan, David A; Dusenge, Mirindi E; Way, Danielle A.; Wullschleger, Stan D.; Hanson, Paul J

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Year Published: 2019

Comparison of methods for modeling fractional cover using simulated satellite hyperspectral imager spectra

Remotely sensed data can be used to model the fractional cover of green vegetation (GV), non-photosynthetic vegetation (NPV), and soil in natural and agricultural ecosystems. NPV and soil cover are difficult to estimate accurately since absorption by lignin, cellulose, and other organic molecules cannot be resolved by broadband multispectral data...

Dennison, Philip E.; Qi, Yi; Meerdink, Susan K.; Kokaly, Raymond; Thompson, David R.; Daughtry, Craig S.T.; Quemada, Miguel; Roberts, Dar A.; Gader, Paul; Wetherley, Erin; Numata, Izaya; Roth, Keely L.

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Year Published: 2019

Back to the future: Rebuilding the Everglades

Society values landscapes that are engrained in cultural tradition and have a rich connection with human history. As such, there has been a concerted effort to look at the pristine past and develop plans to move the past into the future. However, bringing the past back is constrained by hysteretic changes, irrevocable damages, and anthropogenic...

Sklar, Fred H.; Beerens, James M.; Brandt, Laura A.; Coronado-Molina, Carlos A.; Davis, Steven M; Frankovich, Tom; Madden, Christopher; McLean, Agnes; Trexler, Joel C.; Wilcox, Walter

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Year Published: 2019

Non-native marine fishes in Florida: Updated checklist, population status and early detection/rapid response

It has been ten years since the last comprehensive assessment of non-native marine fishes in Florida. Herein, we report sightings of 41 species from Florida coastal waters since the earliest reported sighting in 1984. Information is provided on the population status of each species (e.g., established, eradicated, unknown), and our early detection/...

Schofield, Pamela J.; Akins, Lad

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Year Published: 2019

Acoustic tag retention rate varies between juvenile green and hawksbill sea turtles

Background Biotelemetry has become a key tool for studying marine animals in the last decade, and a wide range of electronic tags are now available for answering a range of research questions. However, comparatively, less attention has been given to attachment methods for these tags and the implications of tag retention on study design, especially...

Selby, Thomas; Smith, Brian; Cherkiss, Michael; Crowder, Andrew; Hillis-Starr, Zandy; Pollock, Clayton; Hart, Kristen

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Year Published: 2019

The state of the world’s mangrove forests: Past, present, and future

Intertidal mangrove forests are a dynamic ecosystem experiencing rapid changes in extent and habitat quality over geological history, today and into the future. Climate and sea level have drastically altered mangrove distribution since their appearance in the geological record ∼75 million years ago (Mya), through to the Holocene. In contrast,...

Friess, Daniel A.; Rogers, Kerrylee; Lovelock, Catherine E.; Krauss, Ken; Hamilton, Stuart E.; Lee, Shing Yip; Lucas, Richard; Primavera, Jurgenne; Rajkaran, Anusha; Shi, Suhua

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Year Published: 2019

Enhancing reproductive assessments of the Florida manatee Trichechus manatus latirostris by establishing optimal time period and inhibin B baseline concentrations

The Florida manatee Trichechus manatus latirostris occupies coastal and riverine habitats that may influence the species’ endogenous biological rhythms, including its reproductive potential. Inhibin B provides a biomarker of gonadal function and reproductive potential in humans and other eutherian mammals. This study examined the...

Wetzel, Dana L; Reynolds, John Elliot; Bonde, Robert; Schloesser, Ryan W; Schwierzke-Wade, Leslie; Roudebush, William E

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Year Published: 2019

Urban stormwater: An overlooked pathway of extensive mixed contaminants to surface and groundwaters in the United States

Increasing global reliance on stormwater control measures to reduce discharge to surface water, increase groundwater recharge, and minimize contaminant delivery to receiving waterbodies necessitates improved understanding of stormwater-contaminant profiles. A multi-agency study of organic and inorganic chemicals in urban stormwater from 50 runoff...

Masoner, Jason R.; Kolpin, Dana W.; Cozzarelli, Isabelle M.; Barber, Larry B.; Burden, D.S.; Foreman, William T.; Forshay, Kenneth J.; Furlong, Edward; Groves, Justin F.; Hladik, Michelle; Hopton, Matthew E.; Jaeschke, Jeanne B.; Keefe, Steffanie H.; Krabbenhoft, David; Lowrance , Richard; Romanok, Kristin; Rus, David L.; Selbig, William R.; Williams, Brad; Bradley, Paul

Filter Total Items: 497
view of bridge from webcam

Peachtree Creek at Atlanta (02336300)

We have installed a webcam at the Peachtree Creek at Atlanta to allow you to view, in real time, the current river-stage conditions.

During periods of flooding, the South Atlantic Water Science Center - Georgia will take control of the camera.

Camera is sponsored by the USGS National Streamflow Information Program (

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view of river from webcam

Sweetwater Creek 0.05 miles US RR Bridge, Austell (02336910)

We have installed a webcam at the Sweetwater Creek 0.05 miles US RR Bridge, Austell to allow you to view, in real time, the current river-stage conditions.

This webcam is located at site 02336910, which is near the Sweetwater Creek near Austell (02337000) water-monitoring site.

During periods of flooding, the South Atlantic Water Science Center - Georgia will

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