Drifting Dawgs

MarSci students at the RV Savannah

UGA Marine Sciences students Carolina da Silva, Courtney Thomas, Chandler Countryman and Ruth Pannill are now on a research cruise off the Georgia coast investigating carbon export off the Altamaha River. Carolina has built 15 surface drifters that are being deployed to track the motion of riverine water over the shelf. The project is led by Patricia Medeiros and Renato Castelao.
 

Lydia (Meg) Babcock-Adams successfully defends her thesis

Meg and Patricia

Lydia (Meg) Babcock-Adams, a student in the Medeiros lab, successfully defended her thesis “ELUCIDATING NATURAL AND ANTHROPOGENIC MARINE PROCESSES USING MOLECULAR BIOMARKERS” on April 15, 2016. Her thesis explores the use of both nonpolar and polar biomarker analysis of environmental samples to track inputs, transport, and transformations of organic carbon in the marine environment. Meg investigated levels and distribution patterns of oil-derived compounds in Gulf of Mexico sediments following the catastrophic Deepwater Horizon oil spill that occurred in April 2010.

Ms. Qian Liu suscessfully defends dissertation

James Hollibaugh and Qian Liu

Ms Qian Liu, a student in the Hollibaugh lab, successfully defended her dissertation “Biogeochemical cycling of polyamines in a coastal marine environment” on April 6, 2016.  Ms Liu began her studies in the Marine Sciences program at UGA in 2010 after receiving her MSc degree from from Central Michigan University.  Ms Liu is a native of Qingdao, China and received her BSc degree from Shandong University of Technology in 2005.

 

Chemistry of the Calcifying Fluid of Corals

microelectrode entering coral

Brian Hopkinson and collaborators from other institutions have recently published a paper reporting new measurements on the chemistry of the calcifying fluid in corals. Corals deposit their mineral skeletons from a thin layer of fluid known as the calcifying fluid. The chemistry of this fluid in part determines how fast the skeleton is made and so how fast corals grow. In the new paper published in Nature Communications, they used microelectrodes to access the calcifying fluid and measure pH and the concentration of carbonate, one of the ions that makes up the skeleton.

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