
15/07/2025
DID YOU KNOW? š¦
In 2012, a young female great white shark named Alisha was satellite-tagged by OCEARCH researchers just off Dyer Island, Gansbaai. Over two years, she travelled an astonishing 38,000 km across the southwest Indian Ocean, from South Africaās coastlines to the waters around Mozambique and Madagascar. But in 2014, her tag fell silentāleaving her fate unknown.
That silence was broken in May 2024, when a local Indonesian fisher handed a satellite tag to Project Hiu, a conservation group working with fisheries. The tag, traced by serial number, belonged to Alisha. It revealed that sheād been caught and killed in 2016 near Lombok, Indonesia, after scavenging a bull shark on a baited tuna longline. š
The shortest distance from her last transmission southeast of Madagascar to where she was caught, is over 10,000 km ā making hers the longest confirmed one-way, transoceanic journey ever recorded for a white shark. š±
Alishaās story is a powerful reminder of the vast journeys these apex predators undertake, and the challenges they face along the way. Her legacy urges us to strengthen international protections for sharks that know no borders. š¦š