Sharks play an essential role in the marine ecosystem. But many species of migratory sharks and rays have become endangered due to overfishing and excessive bycatch in industrial fisheries. And given their migratory nature, sharks and rays are “beyond the national jurisdiction” of any one nation and therefore difficult to protect and regulate. Greta Swanson, a Visiting Attorney at ELI, offers insight on key international agreements that regulate the conservation and management of migratory sharks and rays.