eShark — The Global Shark & Ray Collaboration project
Since 2003, eShark has delivered measurable global impact for sharks and rays through many collaborations and research projects.
Using over 1.6 million observations (as of 2024), these data have contributed to the protection of 100+ shark and ray species across more than 19 million km² of ocean.
Now, with the eOceans app, this collaboration operates continuously — generating real-time data across species, sectors, and geographies.
Join us!
A “magnum opus” of citizen science.
This map represents all the collaborations we’ve had to-date on shark and ray science.
Why use eOceans and not a shark-specific app?
Sharks and rays don’t exist in isolation — they are part of a highly complex, dynamic and fast changing ocean. Standalone apps miss the bigger picture. eShark on eOceans links every sighting to other species, threats, and human activity, creating a real-time, global view of sharks and rays, their threats, and the ocean.
Join us!
Become a field observer
If you know your sharks and rays, share your field observations:
🌀 Download the eOceans app (iOS, Android)
🌀 Explore and survey your sites, anywhere
🌀 Log your shark & ray observations — including zeros!
🌀 Log threats — lost fishing gear, pollution, etc.
As you add observations, they are checked by scientists and then transformed into results in real-time.
Become an influencer, sponsor, or collaborator:
Influencers, sponsors, and collaborators help scale the work by spreading the word and working together.
eShark is led by experts in citizen science shark and ray science
Examples of our research:
🌀 100 million sharks killed each year — threatening populations, livelihoods
🌀 Global manta rays and manta-driven tourism is threatened by IUU fishing
🌀 The Great Fiji Shark Count, eShark Thailand, eManta, and more.
🌀 Sharks disappear on reefs close to human populations, unless strong tourism and conservation
🌀 Shark Sanctuaries have many benefits for sharks and rays, but don’t address all threats
🌀 Yellow stingrays are declining throughout their range, unnoticed by science
🌀 Many more (see impact page for details)
eShark data and results don’t just sit in databases or in peer-reviewed publications— they inform communities, global policy, and conservation decisions.
🌀 Sharks and rays gain protection from illegal, unreported, unregulated fisheries
🌀 International trade regulations strengthened
🌀 Shark Sanctuaries implemented and improved
🌀 Pollution reduction strategies implemented
