
Anthropogenic Ghosts on the Coast
04/21/22 • 26 min
While no longer national news, the Deepwater Horizon oil spill is still impacting the ecological health of the Gulf of Mexico and the livelihoods of the communities that rely upon the gulf’s aquatic life, as Robert “Joe” Griffitt of the University of Southern Mississippi reveals. Dr. Griffitt and co-hosts Anne Chappelle and David Faulkner discuss how ecotoxicology is both an applied and a basic science, as well as how scientific discovery is not always a linear process.
About the Guest
Robert “Joe” Griffitt, PhD, is a Professor at and Director of the University of Southern Mississippi School of Ocean Science and Engineering.
Ecotoxicology, toxicogenomics, and bioinformatics are the focus of Dr. Griffitt’s research. Specifically, his lab investigates the impacts of metallic nanoparticles in aquatic and marine ecosystems and the effects of the 2010 Deepwater Horizon oil spill on the northern Gulf of Mexico. In both cases, his lab uses a combination of molecular and whole-animal endpoints to try to assess toxicological impacts at both cellular and organism levels.
Dr. Griffitt earned a BS in marine biology from the University of North Carolina Wilmington and an MS in marine science and a PhD in environmental science from the University of South Carolina. He completed his postdoctoral research at the University of Florida.
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While no longer national news, the Deepwater Horizon oil spill is still impacting the ecological health of the Gulf of Mexico and the livelihoods of the communities that rely upon the gulf’s aquatic life, as Robert “Joe” Griffitt of the University of Southern Mississippi reveals. Dr. Griffitt and co-hosts Anne Chappelle and David Faulkner discuss how ecotoxicology is both an applied and a basic science, as well as how scientific discovery is not always a linear process.
About the Guest
Robert “Joe” Griffitt, PhD, is a Professor at and Director of the University of Southern Mississippi School of Ocean Science and Engineering.
Ecotoxicology, toxicogenomics, and bioinformatics are the focus of Dr. Griffitt’s research. Specifically, his lab investigates the impacts of metallic nanoparticles in aquatic and marine ecosystems and the effects of the 2010 Deepwater Horizon oil spill on the northern Gulf of Mexico. In both cases, his lab uses a combination of molecular and whole-animal endpoints to try to assess toxicological impacts at both cellular and organism levels.
Dr. Griffitt earned a BS in marine biology from the University of North Carolina Wilmington and an MS in marine science and a PhD in environmental science from the University of South Carolina. He completed his postdoctoral research at the University of Florida.
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Lions and Vultures and Tox, Oh My
How human activity, chemical exposures, and environmental factors combine to contribute to wildlife population declines is at the forefront of the research by Dr. Caroline Moore and other teams at the San Diego Zoo Wildlife Alliance. Dr. Moore unravels the role of toxicology in wildlife conservation with co-hosts Anne Chappelle and David Faulkner.
About the Guest
Caroline Moore, PhD, DVM, serves the San Diego Zoo Wildlife Alliance as a Scientist in Disease Investigations. In this role, she works as a veterinary toxicology researcher, providing molecular and diagnostic toxicology support. She uses toxicology, pathology, molecular diagnostics, and epidemiology to better understand how environmental contaminants, such as heavy metals, pesticides, and harmful algal blooms, create roadblocks to wildlife conservation and how to prevent them.
Dr. Moore is working on developing and applying environmental and diagnostic toxicology in Kenya, where pesticides are used indiscriminately; in Peru, where mining activities release mercury into the environment, impacting birds, bats, nonhuman primates, ocelots, and more; and in Zimbabwe, where harmful algal blooms may be an increasing threat. She is especially interested in developing noninvasive in situ diagnostic tests to better understand the challenges to endangered species and how toxicant exposures may impact future generations through altered epigenetics.
Dr. Moore earned her bachelor’s degree in biochemistry and molecular biology from the University of California Santa Cruz, assisting with necropsies and research on the decline of the southern sea otter. She earned her doctorate in pharmacology and toxicology and her veterinary medical degree at the University of California Davis while on a US Environmental Protection Agency STAR grant investigating how globally present microcystins have toxic effects on the nervous system. She spent the next year as a National Institute of Environmental Health Sciences postdoctoral fellow at the University of California Los Angeles researching how environmental contaminants may cause reproductive toxicity through epigenetics, and the next two years as the SDZWA Steel Endowed Pathology Fellow, establishing successful ways to incorporate more toxicology into conservation field programs.
Dr. Moore is an active member of the Society of Toxicology, the American College of Toxicology, and the Society of Environmental Toxicology and Chemistry, serving on committees and boards for comparative veterinary toxicology, early career professionals, diversity and inclusion, and regional support for Southern California. As an avid hiker, camper, and wildlife enthusiast, Dr. Moore has always felt the need to support conservation efforts through her research.
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Next Episode

Sweating It Out: Exercise versus Toxic Exposures
With nonalcoholic fatty liver disease affecting nearly a third of the US population, Luma Melo, University of Pittsburgh, describes how mouse studies have shown that low-impact exercise can help reverse liver damage. Dr. Melo also shares with co-hosts Anne Chappelle and David Faulkner how research funding works in her native Brazil and the role of Brazilian women in toxicology.
About the Guest
Luma Melo, PhD, University of Pittsburgh, started her scientific career in her native Brazil, earning a master’s degree in physics from the University of São Paulo, where she also served as an Associated Instructor. She then earned a master’s degree in the philosophy of science and medicine and a PhD in environmental health from Indiana University in the United States.
Dr. Melo’s research focuses on liver disease (both alcoholic and nonalcoholic fatty liver disease) and exercise. She is exploring mode of action and genetic expression related to how exercise and environmental chemicals modulate the development of nonalcoholic fatty liver diseases, as well as liver fibrosis and the mechanisms and determinants of mortality of alcoholic liver disease through translational studies including human samples and experimental models of liver disease. She also has conducted research involving aerobic exercise and breast cancer and published a book on quantum physics for laypeople titled But After All ... What Is Quantum Physics?
Dr. Melo is currently a Postdoctoral Associate at the University of Pittsburgh Medical Center and an Adjunct Professor with Ball State University.
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Adverse Reactions - Anthropogenic Ghosts on the Coast
Transcript
[00:00:00] Adverse Reactions “Decompose” Theme Music
[00:00:05] David Faulkner: Hello, and welcome to Adverse Reactions Season 2. My name is David Faulkner, and this is my co-host,
[00:00:11] Anne Chappelle: Anne Chappelle.
[00:00:12] David Faulkner: As much fun as the first season of Adverse Reactions was, I think Season 2 is better.
[00:00:17] David Faulkner: Secretive.
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