Big Shark Pledge Appeal Donate Fundraise About the Big Shark Pledge Many of our best known and much-loved sharks make their home on the high seas, the open-ocean beyond national borders. In our shared ocean, these sharks and rays face a very real threat from a huge international fleet of industrial-scale fishing vessels. Research published in early 2021 confirmed that over three-quarters of oceanic sharks and rays are now at risk of extinction due to the destructive impact of overfishing. They have declined by 71% over the last 50 years. The Big Shark Pledge is at the heart of our ambitious campaign. Your donation will help us build one of the biggest campaigning communities in the history of shark conservation. To put pressure on governments and fisheries. And make the positive changes required to safeguard these awesome sharks. Sign the pledge This will be a long-term international and collaborative effort. Forging a pathway to rebuild populations of high-seas sharks and rays. By putting science at the heart of shark conservation and fisheries management. And making the vital changes needed to set populations on the road to recovery.