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The largest great white shark ever tagged in the Atlantic, known as Contender, has recently made a sudden and significant movement, offering scientists fresh insights into the behavior of these impressive predators.
Contender, measuring 14 feet in length and weighing approximately 750 kilograms, was tagged in January 2025 by Ocearch, a global non-profit organization focused on shark and marine animal research. The tagging took place about 45 miles off the Florida-Georgia coastline, and since then, Contender’s travels have been closely monitored along the eastern seaboard of North America-from Orlando in the south up to the Quebec coast in Canada.
Throughout his monitored journey, Contender has come near various coastal locations, including St. Augustine, Florida, Wilmington, North Carolina, and most recently, the waters off Georgia and South Carolina.
Notably, on April 1, he was detected moving past the Gulf Stream in deep waters off Georgia’s coast. Shortly after, Contender made a rapid shift into even deeper Atlantic waters-a behavior that scientists believe could be linked to breeding activity.
John Tyminski, senior data scientist at Ocearch, commented on this unexpected movement: “This sudden shift might indicate foraging in deeper waters, but we cannot rule out that it relates to reproduction during this time of year.” Such patterns are consistent with mature male great white sharks like Contender, who holds the record as the largest male great white tagged by Ocearch in the Atlantic.
Each tracking signal from Contender provides valuable data, enhancing understanding of these apex predators-their life cycles, migration routes, and potential breeding grounds. This knowledge is crucial for ongoing conservation efforts.
Great white sharks have roamed the oceans for over 400 million years and have long been creatures both feared and admired. Ocearch emphasizes that through their research, fear is being replaced with facts, helping to uncover the mysteries of these remarkable animals even in challenging marine environments.
Ocearch has identified nine distinct populations of great white sharks worldwide, including those in the western North Atlantic, Mediterranean, southern Africa, western North Pacific, eastern Australia and New Zealand, southwest Australia, eastern North Pacific, South American Pacific, and South American Atlantic regions.
For those interested in following Contender’s movements and other tagged sharks, Ocearch offers a Shark Tracker app that provides real-time updates on these fascinating ocean giants.