An extensive study on shark populations has some disconcerting news about reef sharks’ longevity. In a global study of coral reefs launched by two marine biologists from Florida International University called Global FinPrint, 120 scientists from around the world determined that sharks are missing from 19 percent of the world’s coral reefs. The study, published in Nature, used 18,000 hours of underwater camera footage over the course of three years to survey 371 tropical reefs across the world’s oceans. Species the like grey reef shark (pictured) have declined among the world’s coral reefs, with 19 percent of the surveyed areas showing no signs of any sharks at all (stock) According to the scientists, at 69 of the reefs not a single shark was witnessed during their observation period and were almost completely absent from reefs in several nations studied. As noted by Science, sharks are particularly vulnerable to overfishing compared to some other marine animals since they grow slowly and don’t produce many offspring. Additionally, demand for shark fin as a source of protein has grown due to a large middle class in Asia. RELATED ARTICLES Previous 1 Next Neanderthals weren’t as tough as they seemed: Ancient… City-dwellers are urged… Read full this story
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