07/28/26

Tracking shark populations, one shark at a time

About 130 days a year, a research vessel leaves Miami and sets out to catch, measure, sample, tag, and release sharks in Florida’s coastal waters. Over the course of a year, they’ll encounter about 600 animals in a process called “fisheries independent monitoring,” an effort to gather data on sea creatures that isn’t skewed by changes in fishing procedures, equipment, or regulations.

Marine conservation biologist Catherine Macdonald leads the lab behind that effort. She joins Host Flora Lichtman to talk about shark conservation, share stories from her research, and spread shark joy. 


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Segment Guests

Catherine Macdonald

Dr. Catherine Macdonald is a marine conservation biologist and director of the Shark Research and Conservation Program, part of the Rosenstiel School of Marine, Atmospheric, and Earth Science at the University of Miami.

Segment Transcript

The transcript is being processed. It will be available 2-3 days after this story’s publication date.

Meet the Producers and Host

About Flora Lichtman

Flora Lichtman is a host of Science Friday. In a previous life, she lived on a research ship where apertivi were served on the top deck, hoisted there via pulley by the ship’s chef.

About Charles Bergquist

As Science Friday’s director and senior producer, Charles Bergquist channels the chaos of a live production studio into something sounding like a radio program. Favorite topics include planetary sciences, chemistry, materials, and shiny things with blinking lights.

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