14-Foot Great White Contender Moves Up US-Canada Coast as Warming Seas Shift Shark Ranges
Updated
Updated · The Guardian · Jul 31
14-Foot Great White Contender Moves Up US-Canada Coast as Warming Seas Shift Shark Ranges
3 articles · Updated · The Guardian · Jul 31
Summary
Contender—the Atlantic’s largest tagged male great white at nearly 14 feet and more than 1,650 pounds—was tracked from North Carolina and Maine to off Nova Scotia by July 11, apparently summering in Canada.
Researchers say overheating oceans are pushing sharks northward, with warmer surface waters and a developing El Niño expanding habitat and shifting prey, though extreme heat could eventually threaten great whites themselves.
Sightings are rising alongside those shifts: Rockaway Beach in New York logged 16 shark sightings in July, while scientists say bull sharks and even tiger sharks are appearing farther north than before.
Experts stress attacks remain rare despite public anxiety—65 unprovoked shark bites were recorded worldwide last year, 25 in the US—while conservation and better surveillance are also making recovering shark populations easier to spot.
Scientists frame the movement as a climate warning as much as a beach-safety issue, noting humans kill about 100 million sharks a year and that healthy shark numbers help sustain marine ecosystems.