New Study Finds Reef Shark Populations Declining More Globally Than Previously Known

New Study Finds Reef Shark Populations Declining More Globally Than Previously Known

Last month, a new study published in the journal Nature showed that shark populations are decreasing in many regions throughout the world at much greater rates than previously thought. As CBS Los Angeles reported, this is the “most comprehensive study done on the world’s shark population.” The study found that 20% of the areas they studied — across 58 countries — had no sharks at all.

Why This Matters: As Philip Matich, a marine biologist at Texas A&M-Galveston says, “Sharks have important roles in marine ecosystems, but disturbance can alter this role.” This, in turn, can impact the ecosystem, since as one of the top predators in the water sharks regulate prey populations. But, as the study notes, not all hope is lost.

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