Breton, a 1, 437-pound great white tracked by OCEARCH, pinged about 104 miles off Grand Turk Island on March 29 (ET), placing him in the Turks and Caicos and pushing into uncharted waters. The shark was first tagged on Sept. 11, 2020 (ET) during OCEARCH’s Expedition Nova Scotia and has since traveled thousands of miles across the western North Atlantic. This latest southern ping marks the farthest south an OCEARCH-tagged white shark from that population has been documented in the West Indies.
Turks And Caicos: Uncharted southernmost ping
The March 29 (ET) satellite location shows Breton roughly 104 miles from Grand Turk Island, a position described by researchers as outside previously documented ranges for OCEARCH-tagged white sharks in the West Indies. The ping represents a new southern documentation for this western North Atlantic cohort and follows a sighting off the Georgia coast on March 3 (ET). Over the past five years Breton’s track record spans from New Brunswick to Newfoundland and other North Atlantic locations, culminating in this unprecedented southern movement.
Tracking details and tag lifespan
Breton was measured at 13 feet, 3 inches and weighed 1, 437 pounds when tagged on Sept. 11, 2020 (ET) off Scatarie Island. He carried a SPOT satellite tag attached to his dorsal fin; SPOT tags provide near real-time location data and typically last about five years. OCEARCH confirmed that Breton’s SPOT tag “is still sending locations, well beyond the typical lifespan of most tags, ” a detail that enabled researchers to capture this southernmost ping. Breton was the first shark tagged during the 2020 expedition and has been one of multiple white sharks documented through that research effort in the region.
Reactions and what’s next
OCEARCH emphasized the significance of the movement for understanding white shark range when it noted the tag’s ongoing transmission beyond expected operational life. The organization also highlighted that Breton’s name honors the people of Cape Breton and that the tag was applied as part of a coordinated research effort begun in 2020. Researchers note Breton is the fifth shark tagged on that island across two years of work, evidence that the area provided repeated access to white sharks during the study period.
Quick context: SPOT tags are satellite-linked devices that typically last about five years and provide near real-time location data. Breton was named during the 2020 expedition and his name was chosen with partner involvement as part of the research program.
What’s next: Scientists monitoring Breton’s transmissions will watch for follow-up pings to confirm whether this southern excursion is transient or part of a broader pattern; updates will depend on continued SPOT transmissions and ongoing analysis of movement data. For coastal managers and researchers, Breton’s March 29 (ET) ping off Grand Turk Island sharpens focus on how far individuals from the western North Atlantic white shark population may range in the West Indies and will guide subsequent tracking priorities in the Turks and Caicos.
