COLOMBO – As the Biodiversity Beyond National Jurisdiction (BBNJ) Agreement, commonly known as the High Seas Treaty,  officially came into force in January, shark scientists and conservationists who gathered in Sri Lanka hailed the landmark treaty as one that could reshape the future of migratory shark and ray conservation by finally creating a pathway to protect species that traverse vast oceanic boundaries beyond any single nation’s control. “Invisible political lines of controls that we draw on maps mean nothing for the ocean’s long-distance travelers,” said marine biologist Asha de Vos, founder of the Colombo-based Oceanswell during a panel discussion at the Sharks International 2026 (SI2026). “Once these animals swim away from protected areas, they immediately become vulnerable again, so the BBNJ is a very important first step in protecting these highly migratory species.” The session, titled “Sharks know no boundaries: The future of shark conservation under BBNJ regime,” at SI2026 explored how the treaty could strengthen protection for migratory sharks and rays whose ranges extend across territorial waters and international seas. Many sharks and rays are highly migratory, so they move across enormous oceanic ranges, passing through the waters of multiple countries and into the high seas where governance has historically been fragmented and weak. The Convention on Migratory Species (CMS) lists at least 38 highly migratory shark species, while several migratory rays — including manta and devil rays — are also known to undertake long-distance oceanic movements. International waters or the areas beyond national jurisdictions aimed to conserve through…This article was originally published on Mongabay

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