October 14, 2020 — New research reveals the Eastern Pacific is a particular hotspot for the shark fin trade—and a danger zone for an endangered species fighting for survival.
Florida International University (FIU) postdoctoral researcher Diego Cardeñosa and Demian Chapman, an associate professor of biological sciences and marine scientist in the Institute of Environment, collaborated with scientists in Hong Kong to track and monitor the global shark fin trade using DNA testing.
They tested fins from endangered pelagic thresher sharks (Alopias pelagicus)—a species commonly found in the fin trade. Almost 85 percent of fins sampled from retail markets in Hong Kong and China were genetically traced back to sharks caught in the Eastern Pacific. It’s not the first time the scientists have linked fins from endangered sharks to this specific area.
“The findings weren’t surprising, because earlier this year we discovered the majority of fins from endangered scalloped hammerhead sharks also originated from the Eastern Pacific,” Cardeñosa said. “This is a region with poor fisheries management and poor capacity to enforce international regulations.”