Shark Species Thought to Be Extinct Turns Up in Fish Market

The concern for the smoothtooth blacktip’s conservation status is “the same as for any sharks or rays,” said Gavin Naylor, a professor of biology at the College of Charleston, Medical University of South Carolina, who also worked on the 2011 study.

“They are what we call K selected animals, meaning they are long lived and have few pups, and are thus especially vulnerable to fishing pressures,” said Naylor. “Such animals take a long time to recover from overfishing and are particularly prone to extirpation,” extinction from a local area. And, he points out, “Local extirpation leads to global extirpation when individual animals move long distances, as sharks generally do.”

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