Meet Stengl-Wyer Fellow: Angelina Dichiera

December 7, 2020 • by Nicole Elmer
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Left: Angelina with a red drum. (Sciaenops ocellatus). Right:  Angelina sampling a juvenile red drum.


bass

Age 12, holding a largemouth bass (Micropterus salmoides).

What got you interested in studying the physiological adaptations of fish?

I’ve always loved fish – they’re the largest and most diverse group of vertebrates! But I actually didn’t take a physiology class until my very last semester in undergrad. I put it off thinking I would hate it. It was the biggest surprise when I realized how fascinating physiological processes are. Since my undergrad research was more fisheries-based, I looked for a Masters program where I could try my hand at physiology research to see if it was really what I wanted to do. I was very lucky to find Dr. Andrew Esbaugh’s lab, where I had many opportunities to be involved in a diversity of research aims. While I focused on the function of a specific protein, I looked at the impact of body size, salinity, ocean acidification, temperature, and oxygen levels on that protein across many different fish species and in many different tissues. I loved it so much that I switched to a PhD so I could continue my research!

Where do you see your research agenda heading here at UT?

With the Stengl-Wyer graduate fellowship, I am completing my PhD, and broadening my research to better understand the fundamental question that drives my work: how fish breathe underwater. I am currently finishing research on the diversity of carbonic anhydrase proteins across fish. Many fish have duplicates and triplicates of certain proteins, which is true for carbonic anhydrase. I am working to understand how these proteins may have different functions depending on which tissue or which species they are found in. In the spring, I will be finishing the last chapter of my dissertation. I will be taking my fish up to the University of North Texas to learn how to low oxygen exposure impacts cardiac output. I’ve found that fish exposed to low oxygen recruit more protein in their heart – potentially to help increase the amount of oxygen they’re able to get in a stressful environment.

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