Texas A&M University at Galveston

Dr. Antonietta Quigg

Dr. Antonietta Quigg

Lead PI

quigga@tamug.edu

Dr. Quigg, Professor and Associate Vice President for Research and Graduate studies at Texas A&M University at Galveston. Since starting at A&M in 2003, she has participated in 42 research proposals (>21 million), acting as lead PI on 27 including the present project (>10 million).  This has led to >70 publications, most of which have students and postdocs at lead authors.  At any one time, she has several postdocs and technicians and typically 6-7 graduate students. Further, Quigg has spent over 150 days at sea in the Gulf of Mexico. Quigg has extensive experience leading and participating in multiple PI programs, including being responsible for all management aspects of the programs, writing reports and handling budgets, acting in effect as a program manager for these research programs.As the consortium director and chief scientific officer, she will lead this team towards an understanding of aggregation and degradation of dispersants and oil by microbial exopolymers (ADDOMEx). Quigg will bridge her expertise of phytoplankton ecophysiology with the chemists, biologists, engineers on the team to develop a process based understanding of this phenomenon. Quigg is currently involved in a range of projects from studying freshwater inflows and bioindicators in Galveston Bay, to mechanisms controlling hypoxia, and to lab studies on the impact of engineered nanomaterials and the potential for algal biofuels. Quigg has over 70 publications (Google H index 22). To learn more about the different research in the Quigg lab: www.tamug.edu/phytoplankton/People/Antonietta_Quigg.html

Dr. Peter H. Santschi

Dr. Peter H. Santschi

santschi@tamug.edu

Dr. Santschi is a Regents Professor of Texas A&M University, and Director, Laboratory for Oceanographic and Environmental Research (LOER) and Coastal Zone Laboratory (CZL) and is involved in ADDOMEx as theDeputy Consortium Director. He will be involved in various aspects of the research on the role of exudates in oil dispersion, aggregation and fate, and will co-ordinate activities of exudate analysis. Dr. Santschi will work closely with lead investigators, postdocs and graduate students, and coordinates activities for EPS characterization and inter-laboratory collaborations.  Dr. Santschi has over 280 publications (H score 69) in various topics in environmental and marine chemistry. Dr. Santschi currently is involved research projects on radionuclide binding to bio- and geopolymers in the ocean and in soils as well as on the role of exopolymeric substances as biosurfactants and radionuclide scavenging in the marine environment. To learn more, visit http://loer.tamug.edu/people/Santschi/index.html

Dr. Kathleen A. Schwehr

Dr. Kathleen A. Schwehr

 Data Manager and Scientist

 Dr. Kathleen A. Schwehr, as an associate research scientist for the LOER and a lead investigator for ADDOMEx. She will also be the data manager for the ADDOMEx project. Dr. Schwehr will help oversee postdocs, graduate, and undergraduate students, as well as lead the physical chemical characterization of the EPS-Oil-Corexit mixtures. Dr. Schwehr has 9 years of experience in biogeochemical nutrient cycling in oceanographic and aquatic systems, and in the interaction of trace elements with natural organic matter and EPS. To learn more, visit http://loer.tamug.edu/people.html
Dr. Chen Xu

Dr. Chen Xu

Team Member & Assistant Research Scientist

LOER Laboratory

Dr. Chen Xu, assistant research scientist and lead investigator for ADDOMEx, is responsible for day to day operations and management, as well as for EPS separation, purification, EPS and marine particles/aggregates characterization, in collaboration with the Hatcher Lab with several state-of-the-art instrumentation including NMR and ESI-FT-ICR-MS. Dr. Xu has more than ten years of experience in the studies of 1) biogeochemistry of natural organic matter in aquatic environments, in particular amphiphilic exopolymeric substances (EPS) excreted by microorganisms (algae and bacteria), their composition at the molecular level and how the composition of mobile or immobile colloidal carriers of radionuclides (e.g., 129I,234Th, 239,240Pu, etc.) relates to removal from the water or immobility in soil and groundwater; 2) The application of natural (e.g., 238U, 234Th, 233Pa, 237Np) and man-made radionuclides (e.g., 137Cs, 129I, 239, 240Pu,3H) as tracers and geochronometers to investigate fate and transport of NOM as well as inorganic and organic toxicants in the aquatic environment. To learn more, visit http://loer.tamug.edu/people.html

Dr. Saijin Zhang

Dr. Saijin Zhang

Team Member & Assistant Research Scientist

LOER Laboratory

Dr. Saijin Zhang, assistant research scientist and lead investigator for ADDOMEx, will work with Dr. Chen Xu on day to day operations and management, as well as on extracellular polymeric substances (EPS) separation, purification and characterization in the Santschi Lab. Dr. Zhang has years of experience in interactions of EPS with radionuclides and of EPS with nanoparticles in the marine environment. To learn more, visit http://loer.tamug.edu/people.html

Jennifer Genzer

Jennifer Genzer

Master’s Student

Phytoplankton Dynamics Laboratory

genzerj@tamug.edu

I recently graduated from Texas A&M University with my bachelor’s in Biology and an Oceanography minor. I focused my undergraduate research project on phytoplankton community structure along the Texas coast using an Imaging FlowCytobot in Dr. Lisa Campbell’s lab. I joined Dr. Quigg’s lab to work on the Aggregation and Degradation of Dispersants and Oil by Microbial Exopolymers (ADDOMEx) project funded by Gulf of Mexico Research Initiative where we will be analyzing the effects of oil on phytoplankton and their production of marine snow. I am also helping with the new Imaging FlowCytobot by collecting samples and identifying phytoplankton. http://www.tamug.edu/phytoplankton/People/Jennifer_Genzer.html 

Dr. Laura Bretherton

Postdoctoral Fellow

Phytoplankton Dynamics Laboratory

lmjbretherton@tamug.edu

My research interests are centered around phytoplankton physiology and community ecology, and how they are altered by changing environmental factors. I completed my Ph.D. in Marine Biology at the University of Essex (UK), where I was part of the UK Ocean Acidification Research Program (UKOARP), a national consortium dedicated to bettering our understanding of ocean acidification and its effects on marine organisms and ecosystems. My work focused on how changes in light availability affect the ocean acidification response of coccolithophores, a globally distributed calcifying group of phytoplankton. My postdoctoral work at Galveston is part of the Aggregation and Degradation of Dispersants and Oil by Microbial Exopolymers (ADDOMEx) project, where I will be culturing different species of phytoplankton with different concentrations of crude oil and chemical dispersant to understand how these compounds affect phytoplankton physiology, extracellular polymeric substance (EPS) production and aggregation

December 2017
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Funded by: GoMRI