Working with government leaders, scientists, fisheries experts, diplomats, and even survivors of shark attacks, Pew works to highlight the plight of sharks from overfishing and to urge countries to take action to conserve them.
Sharks have roamed our oceans since before the time of dinosaurs, but their long reign at the top of the ocean food chain may be ending. The onset of industrial fishing over the past 60 years has drastically depleted their populations. Of the shark and ray species assessed by scientists for the International Union for Conservation of Nature (IUCN), nearly 50 percent are threatened or near-threatened with extinction.
Every year approximately 100 million sharks are killed in commercial fisheries. The catch of shark for their fins, meat, liver oil, cartilage, and other parts remains largely unregulated in most of the world, driving some populations toward extinction.
In general, sharks grow slowly, mature late and produce few young over long lifetimes, leaving them exceptionally vulnerable to overexploitation and slow to recover from depletion. As key predators, their depletion also has risks for the health of entire ocean ecosystems. For example, tiger sharks have been linked to the quality of seagrass beds through their prey, dugongs and green sea turtles, which forage in these beds. Without tiger sharks to control their prey’s foraging, an important habitat is lost.
Pew has identified the present moment as a critical time to reverse the global decline of shark populations. We work internationally to influence the fishing nations and treaty organizations that regulate high seas fisheries. In addition, we work with nations whose waters still have diverse populations of sharks to declare shark sanctuaries and to advocate for international shark conservation.
Protecting shark populations
Ministers call on world leaders to protect 13 shark and ray species
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JOHANNESBURG, South Africa—The Pew Charitable Trusts today applauded the move by the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) to extend to four species of sharks and nine species of mobula rays the protections they need to recover from depleted populations. Read More
Nations that are members of the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) will soon vote whether to add silky sharks, three species of thresher sharks, and nine species of mobula ray to what is known as CITES Appendix II. Such listings would limit trade in these sharks and rays because governments would have to prove that continued international trade... Read More