Monthly Archives: March 2025

Changes, Dreams, and Everything In-Between

Per- or Polyfluoroalkyl substances (PFAS) are a class of chemicals that are found in everything from food wrappers to the inside of firefighter turnout gear. Certain PFAS have been linked to things like high blood pressure, low infant birth weight, and an increased risk to certain kinds of cancers. Their toxicity mixed with PFAS’ resistance to breakdown in the environment means that a better understanding of their prevalence is necessary to keep people and the environment safe.

Derek Muensterman recently received his PhD while working in the lab of Jennifer Field as a chemistry graduate student. His research focuses on using various analytical techniques to quantitatively and qualitatively understand PFAS in various household products and environmental matrices. By creating a deeper understanding of PFAS, Derek hopes that his research can be used to further protect people and the environment from these emerging toxins. Derek is an Oregon native growing up in Bend, if he wasn’t snowboarding on Mt. Bachelor he was enjoy the natural beauty of the Cascades. Derek has always been a pillar of the Field lab and though we’re sad to see him go we’re excited to send him off with a great interview!

Tune into KBVR 88.7 FM at 7 pm PST on March 16th to hear Derek talk about the challenges of coming back to school after working in industry and his dive into the world of vinyl collecting.

Written by E Hernandez

Listen wherever you get your podcasts, including on our KBVR page, Spotify, Apple Podcasts, or anywhere else!

Gross and slimy: How salmon shark barf can teach us about their foraging ecology

If someone asked you to describe a shark, I imagine most folks would report a ten-foot long body, rows and rows of razor sharp teeth, and the ruthless nature of a (literal) cold-blooded killer. If you asked Master’s student Reilly Boyt to describe a shark, she would likely describe a salmon shark. Before you look at the photo below, I urge you to close your eyes and picture a shark that looks a little shy and vaguely embarrassed. Okay now open, is this what you pictured or is it even better?

Credit: Shane Gross
Pictured: Reilly Boyt helping conduct an ultrasound on a shark, all photos taken during permitted research

Reilly (she/her) is a second year Master’s student in the Big Fish Lab in the Department of Fisheries, Wildlife, and Conservation Sciences, studying the diet and habitat use of salmon sharks using multi-chemical tracers (e.g. eDNA metabarcoding and fatty acid analysis) across size classes and sex). Not only are salmon sharks adorable, but they are also one of the many fascinating shark species that are located right off the Oregon coast. Although salmon sharks are fish, they are actually warm-blooded or endothermic, meaning they can regulate their body temperature like mammals. Salmon sharks are apex predators, and they therefore impact the ecosystem from the top-down and have an incredibly important role throughout the entire food web. Despite this, scientists are still unsure of exactly what they are eating and where. That’s where Reilly comes in!

Reilly’s work aims to combine multiple methods that look for feeding signatures within fatty acids, isotopes, and DNA. These techniques can provide an understanding of both short- and long-term diet choices. In order to get these types of data, Reilly gets the simultaneously awesome and disgusting job of sorting through shark stomachs and vomit. I think true science nerds understand how cool that is! 

Pictured: Reilly Boyt examining the contents of a shark stomach.
Pictured: Reilly Boyt working in the lab.

From conducting diet analysis on coyote stomachs in high school to working for NOAA on shark diet studies, Reilly really has done it all. She is the founder and CEO of Disabilities Within Ocean Sciences (DWOS), an organization dedicated to “building a network and resource hub for disabled marine scientists at every career stage.” She has done prolific advocacy work that focuses on promoting inclusivity and equitable access within the field of marine science.

To learn more about DWOS and the adorably awkward salmon shark, you can check out the interview wherever you get your podcasts, including on our KBVR page, Spotify, Apple Podcasts, or anywhere else!

Written by Taylor Azizeh


PFAS? Seems a little zebrafishy to me

Per- or Polyfluoroalkyl substances (PFAS) are a class of chemicals that are known for their ability to contaminate our environment and be resistant to breaking down. However, there’s still a lot to learn about their potential for toxicity. One way scientists can better understand PFAS toxicity is by using the embryonic zebrafish models. These tiny fish have a genome that is around 70% similar to humans. This makes the zebrafish a powerful tool in understanding how some chemicals may express toxicity in humans.

Eli Cowan is a second-year PhD student in the lab of Robyn Tanguay, which is a part of the Environmental and Molecular Toxicology lab here at OSU. His research focuses on using the zebrafish model to understand how PFAS exposure may lead to adverse effects in development. With this data and using his in-dept knowledge of biology, Eli then can help answer questions about how PFAS may be toxic to people. Eli was raised in Vicksburg, Mississippi, where he first encountered zebrafish toxicology in a locally-based lab. Eli has always been a natural born scientist, and that curiosity has led him all the way across the country pushing the bounds of science.

Tune into KBVR 88.7 FM at 7 pm PST on March 2nd to hear Eli talk about cold calling researchers looking for a job and how he fell in love with organic chemistry from an Obi-Wan Kenobi doppelganger.

Written by E Hernandez

If you miss the show, you can check out the interview wherever you get your podcasts, including on our KBVR page, Spotify, Apple Podcasts, or anywhere else!