Aquatic Sciences

Nicholas S. Marzolf, Ph.D.

People

Nicholas S. Marzolf, Ph.D.

Assistant Scientist

Nick received a B.S. in Biology from the University of Florida (2013), a M.S. from the University of Georgia and the Jones Center at Ichauway (2015), and a Ph.D. from North Carolina State University (2021). His research began in documenting the invasion of Lake Seminole by the apple snail Pomacea maculate and transitioned to quantifying carbon fluxes in Neotropical streams. He was a Postdoctoral Associate at Duke University and expanded work on carbon fixation and greenhouse gas emissions from rivers across the US, integrating ecosystem models with high resolution data collection.

Jamie Rogers, M.S.

Research Associate

Jamie Rogers, originally from Waynesville, GA, received her B.S. in Biology with a concentration in Environmental Science from Georgia Tech. As an undergrad, Jamie focused on marine ecology while completing various research experiences through the University of Georgia Marine Institute on Sapelo Island, GA. She then transitioned to freshwater ecology while working as a Seasonal Technician here at Ichauway under Dr. Steve Golladay. As a technician Jamie worked on various water quality, paleolimnology, and invertebrate projects across the lower Flint River Basin which fueled her interest in stream critters and their habitats. She continued at Ichauway as a graduate student under the co-advisement of Dr. Golladay and Dr. Shannon Brewer at Auburn University where she earned a master’s degree in Fisheries Science. Her research focused on the movement and early life history of riverine Shoal Bass and Largemouth Bass in the lower Flint River basin. Shortly after graduating, she joined the Aquatic Sciences Lab as a Research Associate in 2024 and is thrilled to continue exploring and investigating the aquatic habitats of southwest Georgia..

Brian Clayton

Hydrologic Monitoring Technician

Brian grew up in Iron City Georgia, a mere thirty miles from the Jones Center. After receiving a bachelor’s degree in biology from Georgia Southern University he began working at the Jones Center in 1999. Starting his career in the Aquatic Biology lab, Brian studied freshwater mussels, wetland invertebrates, and water quality in the Flint River. He then moved to the Hydrology Lab working on projects such as surface and groundwater interactions, aquifer transmissivity, and wetland hydroperiod change by hardwood encroachment. Today, Brian works on the long-term monitoring sites collecting data used by many of the Jones Center labs. Over the past 25 years he has had the opportunity to be a part of numerous research projects leading to a better understanding of water resources in southwest Georgia.

Chloe Hall

Research Technician

Chloe received her B.S. in Environmental Science with a minor in GIS from the University of North Carolina at Chapel Hill. Chloe took part in several undergraduate research opportunities while earning her degree that led her to identify freshwater science as a passion of hers. From the high elevation wetlands of the Andes mountains in Ecuador to the headwaters of the Chattooga River in Western North Carolina, Chloe has been able to work as a research assistant in some amazing places. She has identified freshwater biogeochemistry as a research area of strong interest to her during her time spent in the DelVecchia lab at UNC. She plans to pursue a graduate degree in this field. Chloe is currently working as the Aquatic Sciences Lab Research Technician and is enjoying exploring new aquatic systems, seeing many gators, and expanding her understanding of freshwater science.

Jewell Johnson

RaMP Participant

Jewell Johnson, from Lithonia, GA, and received her B.A. in Biology at Valdosta State University. During her time at Valdosta, she participated in various undergraduate research projects and developed an appreciation for wetland systems. After graduating college, she is now participating in the NSF Woods2Water fellowship through the University of Alabama. In this program, she had the fortunate opportunity to join the Aquatic Sciences Lab under Dr. Marzolf. Here she has developed an appreciation for biogeochemistry in freshwater ecosystems and has had the opportunity to explore the beauty of southwest Georgia. She plans to pursue education in this field and learn as much as possible.

Dustin Benton

RaMP Participant

Dustin Benton, originally from Brunswick, GA, received his B.S. in Environmental Science with a concentration in Environmental Studies and a minor in Geology from the College of Coastal Georgia. Dustin took part in multiple undergraduate research projects while in college that led to him gaining an appreciation for aquatic systems. After graduation, he joined the NSF Woods2Water program through the University of Alabama. During his time in Alabama, he had the fortunate opportunity to join the Shogren Stream Science Lab under Dr. Arial Shogren, as well as be a seasonal field technician at NEON’s Domain 8. In his time at the Jones Center at Ichauway, he had the equally as fortunate opportunity to join the Aquatic Sciences Lab under Dr. Nick Marzolf. Both of these experiences have allowed him to develop an appreciation for freshwater ecosystems as well as learn as much new material as possible. Dustin plans to work seasonal technician positions until eventually going back to school for ecological research. 

Caitlin Sweeney

Research Associate

Caitlin received her BS in Environmental Science from Auburn University. She then continued to receive her master’s degree at Auburn under Dr. Eve Brantley in the Department of Crop, Soil, and Environmental Sciences. Her research focused on soil amendments for bioretention cells, a form of green infrastructure for stormwater management. After graduating, Caitlin worked as a Watershed Program Assistant with Alabama Extension where she contributed to presentations and publications for the Alabama Private Well Program and Alabama Watershed Stewards Program. She joined the Jones Center Aquatic Biology Lab as a Research Associate in 2021. She is excited to have the opportunity to learn more about freshwater biology and contribute to research in the Flint River basin. Her favorite mussel is the Sculptured Pigtoe (Cyclonaias infucata).

Natalie Horn

Seasonal Technician

Natalie received her BS from Coastal Carolina University where she majored in Marine Science. Since being at the Jones Center, she has become a Flint River mussel hugger and freshwater enthusiast of the lower Flint River basin. She hopes to continue expanding her knowledge and attend graduate school in the future. Her favorite mussels include Elephant Ears (Elliptio crassidens), Southern Elktoes (Alasmidonta triangulata), and Florida Sandshells (Lampsilis floridensis).

Stephen W. Golladay, Ph.D.

Scientist

Dr. Golladay’s interests include the ecology of streams and wetlands, the impact of human land use on water quality and aquatic invertebrates, and the impact of variation in hydrology on ecological processes and aquatic communities Recently, he has developed an interest in the ecology and conservation of rare and endangered freshwater mussel species.

Dr. Golladay has served as a technical advisor to the Sand County Foundation, Georgia EPD, DNR and Water Management districts in Florida. He has developed training activities for resource professionals in partnership with the U.S. Fish and Wildlife Service. Dr. Golladay also has assisted in the development of programs to enhance the
natural resource awareness of regional educators in cooperation with regional Georgia Youth Science and Technology.