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Skidaway Institute faculty and students visit Paris for Goldschmidt Conference

Skidaway Institute was well represented at the Goldschmidt Conference in Paris in August. Jay Brandes, Julia Diaz, Cliff Buck and Sydney Plummer participated in the annual, international conference on geochemistry and related subjects, organized by the European Association of Geochemistry and the Geochemical Society.

Julia Diaz and Sydney Plummer pose by the Eiffel Tower.

Jay was a co-convener of the session: “Tracking carbon from source to sink in modern and ancient environments: the carbon cycle in coastal environments, stable carbon isotope systematics, and the role of photochemical reactions.” His fellow conveners were Jaime Toney, Christian Schröder, Anke Neumann, Songhu Yuan, Leanne Powers (former SkIO post doc), Ying Cui and Xiahong Feng.

Jay was the lead author on one poster presentation and co-author on another with Leanne Powers, Kevin Ryan, Aron Stubbins and Bill Miller.

“What Can Carbon Isotopes Tell Us About the Nature of Photo-Labile Dissolved Organic Carbon?” Jay Brandes, Kevin Ryan, Aron Stubbins & Leanne Powers

Moderate Dissolved Inorganic Carbon (DI13C) Isotope Enrichment (MoDIE) for Improved Evaluation of DIC Photochemical Production in Seawater
Leanne Powers, Kevin Ryan, Jay Brandes, Aron Stubbins & William Miller

Julia had four presentations and was a keynote speaker.

Keynote: Marine Polyphosphate: Linking the Global Phosphorus Cycle over Modern and Geologic Timescales
Julia Diaz, Y. Tang, R. Huang, B. Wan, James Sanders, Karrie Bulski & Doug Mollett

Dynamics and Regulation of Extracellular Superoxide Production by Marine Microbes
C. Hansel, Julia Diaz, R. Gast & J. Bowman

Species-Specific Control of External Superoxide Levels by the Coral Holobiont during a Natural Bleaching Event
Julia Diaz, C.M. Hansel, A. Apprill, C.  Brighi, T. Zhang, L. Weber, S. McNally & L. Xun

Unraveling the Eco-Physiological Roles of Phytoplankton-Derived Reactive Oxygen Species
Sydney Plummer, C.M.Hansel, Elizabeth Harvey, Karrie Bulski & Julia Diaz

Cliff gave an invited talk and he was a co-author on another.

Invited: Aerosol Deposition and Fractional Solubility of Trace Elements in the Remote Ocean
Clifton Buck, W. Landing, A. Aguilar-Islas, Christopher Marsay & D. Kadko

Evaluation of Labile Iron Processing in Atmospheric Models
A. Ito, S. Myriokefalitakis, M. Kanakidou, N. Mahowald, A. Baker, T. Jickells, M. Sarin, S. Bikkina, Y. Gao Y, R. Shelley, Clifton Buck, W. Landing,  A. Bowie, M. Perron, N. Meskhidze, M. Johnson, Y,  Feng & R. Duce


Research papers accepted for publication

Two Skidaway Institute faculty had papers accepted for publication recently.

Dana Savidge:

“CASPER: Coupled Air-Sea Processes and Electromagnetic (EM) ducting Research”
Bulletin of Atmospheric Sciences Journal Article accepted (peer-reviewed) Nov. 3, 2017 (BAMS-D-16-0046)

Author List: Qing Wang; Denny P. Alappattu; Stephanie Billingsley; Byron Blomquist; Robert J. Burkholder; Adam J. Christman; Edward D. Creegan; Tony de Paolo; Daniel P. Eleuterio; Harindra Joseph S. Fernando; Kyle B. Franklin; Andrey A. Grachev; Tracy Haack; Thomas R. Hanley; Christopher M. Hocut; Teddy R. Holt; Katherine Horgan; Haflidi H. Jonsson; Robert A. Hale; John A. Kalogiros; Djamal Khelif; Laura S. Leo; Richard J. Lind; Iossif Lozovatsky; Jesus Panella-Morato; Swagato Mukherjee; Wendell A. Nuss; Jonathan Pozderac; L. Ted Rogers; Ivan Savelyev; Dana K. Savidge; R. Kipp Shearman; Lian Shen; Eric Terrill; A. Marcela Ulate; Qi Wang; R. Travis Wendt; Russell Wiss; Roy K. Woods; Luyao Xu; Ryan T. Yamaguchi; Caglar Yardim

Catherine Edwards:

“Detecting Abnormal Speed of Marine Robots Using Controlled Lagrangian Particle Tracking Methods”
IEEE Proc. Workshop on Underwater Networks (WUWNet) 2017, accepted Oct. 12, 2017.

Author List: S. Cho.*, F. Zhang, and Catherine Edwards

Gray’s Reef’s Michelle Riley wins national award

NOAA’s Office of National Marine Sanctuaries (ONMS) has awarded Michelle Riley the Sea to Shining Sea: Excellence in Interpretation and Education Award for her project “Georgia Public Broadcasting Live Exploration of Gray’s Reef.”

According to a statement from ONMS, “Michelle and the Live Exploration of Gray’s Reef through Georgia Public Broadcasting are recognized for the creation of a livestream, virtual dive event featuring Gray’s Reef National Marine Sanctuary that engaged more than 45,000 viewers from 44 states as well as internationally.”

GPB host Ashley Mengwasser, GRNMS Superintendent Sarah Fangman and UGA research scientist Scott Noakes, Ph.D. discuss Gray’s Reef National Marine Sanctuary during the livestream. Photo M. Riley/GRNMS

The program was streamed live from the UGA Aquarium on May 10, 2017. During the event viewers were introduced to Gray’s Reef NMS through video, heard from scientists and had the chance to submit questions to be answered live. This program directly introduced tens of thousands of mostly elementary and middle school students to the wonders of Gray’s Reef and the challenges it faces.

This is the fifth year that ONMS has recognized outstanding achievement in the fields of interpretation and environmental education. This annual award is given to employees, contractors and volunteers for their demonstrated success in advancing ocean and climate literacy and conservation through national marine sanctuaries, as well as for their innovation and creative solutions in successfully enhancing the public’s understanding of the National Marine Sanctuary System and the resources it protects.

Michelle will receive the award at the National Association for Interpretation’s annual conference in Spokane, Wash. in November. It will be presented in conjunction with several other agency awards including the U.S. Forest Service’s “Gifford Pinchot Award” and the National Park Service’s “Freeman Tilden Award.”

“It is fitting for sanctuaries to be at the forefront of interpretation and education alongside some of the country’s best interpreters,” said John Armor, Director of Office of National Marine Sanctuaries.


Frischer lab attends international conference

arc Frischer, Tina Walters and Lauren Lamboley attended the 3rd Symposium on Molecular Analysis of Trophic Interactions in Upsalla, Sweden in mid-September. They made several presentations.

FrischerGroupSwedenSelfie 650p

Lauren, Marc and Tina shoot a selfie at the cathedral in Upsalla.

Frischer, M.E., Walters, T.L. and Price, A.R. (2017). Distribution, Ecology and Role of a Parasitic Ciliate on Commercial Penaeid Shrimp in the US Southeast Atlantic: Insights Gained Using Molecular Interaction Tools. 3rd Symposium on Molecular Analysis of Trophic Interactions. 13-15 September 2017. Upsalla, Sweden.

Lamboley, L.M., Walters, T.L. and Frischer, M.E. (2017). Quantitative Significance of Different Prey Types in the In Situ Diet of Dolioletta gegenbauri. (2017). 3rd Symposium on Molecular Analysis of Trophic Interactions. 13-15 September 2017. Upsalla, Sweden.

Walters, T.L. and Frischer, M.E. (2017). Molecular Gut Profiling of Dolioletta gegenbauri in the South Atlantic Bight Shelf: What Are They Eating? 3rd Symposium on Molecular Analysis of Trophic Interactions. 13-15 September 2017. Upsalla, Sweden.

Following the symposium the three spent two weeks at the University of Bergen (Norway) testing a new technology called digital drop PCR.

“It worked great and was a great learning experience, especially for Tina and Lauren,” Marc said.

Clark Alexander named director of UGA Skidaway Institute of Oceanography

Clark Alexander, a scientist with a long history of fostering collaboration and excellence in research, has been named director of the University of Georgia Skidaway Institute of Oceanography.

Alexander is a professor in the department of marine sciences, part of UGA’s Franklin College of Arts and Sciences, and has served as interim director of the Skidaway Institute for the past year. As director of the Skidaway Institute, he will continue to oversee its personnel, budgets and facilities and report to the Office of the Senior Vice President for Academic Affairs and Provost.

“The Skidaway Institute of Oceanography plays a vital role in training scientists and conducting research that address critical economic and environmental issues that affect our state and world,” said Provost Pamela Whitten. “Dr. Alexander’s longstanding commitment to deepening the impact of the institute while building bridges with partners on and off campus makes him uniquely qualified to take on this important leadership role on a permanent basis.”

Alexander’s research explores how physical processes such as erosion and sedimentation impact coastal and marine environments. His work has been supported with nearly $6 million in external funding from agencies such as the National Science Foundation, the National Oceanic and Atmospheric Administration, the U.S. Geological Survey and the Georgia Coastal Management Program. He has participated in more than 60 field programs in 13 countries and has been the chief scientist on nearly 30 expeditions. Alexander has been the recipient of several honors, including the Preservation Achievement Award from the Georgia Department of Natural Resources.

He joined the Skidaway Institute’s faculty as an assistant professor in 1991 after earning his doctorate and master’s degrees from North Carolina State University and two bachelor’s degrees from Humboldt State University in California.

“Since 1968, Skidaway Institute faculty and staff have worked to create new knowledge and produce highly trained students in the marine sciences,” Alexander said. “Through new program initiatives within the department of marine sciences and new collaborations with other colleagues at UGA and throughout the University System of Georgia, we are building on that legacy to enhance research and education statewide. I am grateful for the opportunity to lead the institute during this exciting time in our history.”

The UGA Skidaway Institute of Oceanography is a multidisciplinary research and training institution located on a 700-acre campus on Skidaway Island, southeast of downtown Savannah. Its primary goals are to further the understanding of marine and environmental processes, conduct leading-edge research on coastal and marine systems, and train tomorrow’s scientists. For more information on the Skidaway Institute, see

New faces on campus

We have a number of new faces on campus, although some may be leaving us shortly.

Alisia Holland is a first year doctoral grad student in Julia Diaz’s lab. She recently graduated from Florida State University with a B.S. in geology. Alisia is originally from Ft. Lauderdale, Fla.

Mariele Paiva is a Brazilian Ph.D. student from Universidade Federal do Rio Grande (FURG). She is working in Cliff Buck’s lab. Mariele has particular interests in natural chemical tracers of marine processes such as submarine groundwater discharge and marine geochemical cycling. She is sponsored by the Nippon Foundation and Partnership for Observation Oceanography. Mariele spent the first year of her research work at the Alfred Wegener Institute (Germany), working on the measurement of dissolved and particulate Thorium-228 and Radiuim-224 in coastal waters. She was recently granted a scholarship by the Coordination for the Improvement of Higher Education Personnel for a one-year-visit study at Skidaway Institute. Here, she will work on sediment samples from the Southwestern Atlantic Shelf.

Sarah Zajovits has been interning in Aron Stubbins’ lab this summer. She is from Raleigh, N.C. and is a junior marine science major at the University of South Carolina. Sarah plans to go to graduate school when she graduates. Her work this summer has focused on dissolved inorganic and organic carbon. “Nothing makes me happier than the sun, sand and the sea; so it looks like I’ve found where I’m meant to be,” Sarah said.

Russell Nicholson, a senior biology major at Haverford College in Pennsylvania, has been interning in Liz Harvey’s lab this summer. He is studying the effects of marine bacterial metabolites on phytoplankton, specifically the toxicity of algicidal compounds, which kill or limit the growth of algae. For his experiments, he runs bioassays with the coccolithophore, Emiliania huxleyi, and uses fluorescence probes to detect stress signals that identify the algicidal compounds’ mechanism of action. He also accompanied Liz on a research cruise off the coast of Bermuda aboard the R/V Atlantic Explorer.

Sam Khallaghi is working in Clark Alexander’s lab this month. He is a Ph.D. student at Clark University. Sam is originally from Iran. He has two master’s degrees, one from Tabriz University in Iran on applications of GIS and remote sensing with focus on land and water resources, and a second one from Lund University in Sweden, specializing in geomatics. In 2014, he moved from Sweden to the United States and joined Hewlett-Packard in Sunnyvale, Calf., as a network security technical support engineer. He began his doctoral program at Clark University in 2016.

His current project has several objectives, “But the two main ones are to make a land cover map of Sapelo Island using five time points, 2012, 2013, 2015 and 2017, and then do a post classification change analysis to find the metrics of change in the study area,” he said. “Then the findings would come out in the form of a report and hopefully a journal article.”

The Gray’s Reef dive team welcomes Erika Sawicki, this year’s Dr. Lee H. Somers American Academy of Underwater Sciences Scientific Diving Internship scholarship winner. The scientific diving internship provides undergraduates with experience and exposure to research and field work at environmental organizations around the country.

Erika recently graduated from the University of New England in Biddeford, Maine with a double major in ocean studies and marine affairs, and environmental science with a minor in philosophy.

Erika recently received her AAUS certification at the Scripps Research Institute. She will use her new training for the month of August assisting GRNMS staff on dive missions. To read about her adventures, please visit her blog at

Two NOAA staffers honored

Two Skidaway Island-based NOAA staffers were recently recognized with prestigious awards from NOAA. Reed Bohne and Marybeth Head were presented the awards on May 23rd in Washington, D.C.

Bohne was awarded the NOAA Distinguished Career Award for “exceptional contributions to the management and growth of the National Marine Sanctuary and National Estuarine Research Reserve systems.” Bohne supervises six of the system’s 13 national marine sanctuaries, including Gray’s Reef.

NOAA Corps Ensign Head, who also serves as the Vessel Operations Coordinator at Gray’s Reef, received the NOAA Bronze Medal Award, the highest award granted by the Under Secretary of Commerce for Oceans and Atmosphere. Ensign Head was recognized for “rapid integration and deployment of Autonomous Surface Vessels for hydrographic use aboard the NOAA Ship Thomas Jefferson.”