Grey reef shark. Photo credit: Stacy Jupiter/WCS
Thanks so much for your support of the Wildlife Conservation Society’s marine conservation efforts! Just wanted to share with you some great news about marine reserves: they can be good for sharks.
In Fiji's largest marine reserve, where fishing is banned, sharks are thriving. Marine researchers from WCS and the University of Western Australia have found that Namena Reserve—located on the southern coast of Fiji’s Vanua Levu Island—has two to four times more sharks compared to adjacent areas where fishing is permitted. The researchers say that the significantly higher availability of prey fish within Namena’s boundaries accounts for its shark densities. The 60-square-kilometer reserve was established in 1997 and is managed by local communities.
Outside the reserve, in areas where fishing is permitted, the researchers found fewer sharks. They note that, because local Fiji communities traditionally considered sharks to be sacred, eating them is typically taboo. But as demand for shark products grows, higher prices are driving some locals to catch sharks. The island country’s shark populations are also vulnerable to foreign fishing fleets. Worldwide, increasing rates of harvesting are leading to the depletion of many shark species.
“The news from Fiji gives us solid proof that marine reserves can have positive effects on reef shark populations,” said Dr. Caleb McClennen, Director of WCS’s Marine Program. “Shark populations are declining worldwide due to the demand for shark products, particularly fins for the Asian markets. We need to establish management strategies that will protect these ancient predators and the ecosystems they inhabit.”