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Three white sharks detected last year

August 14, 2025 by Sophia Harris

The MH1 Marblehead Buoy was deployed on July 11. The buoy tracks great white sharks that swim within 200 yards of the receiver in order to be recorded.

Last year, according to the Atlantic White Shark Conservancy (AWSC) network, the receiver counted 19 white shark directions. Seventeen are from Lindsey Loo, a female white shark measuring 9.5 feet.

The other two directions were from Major Bro Dude, a male white shark coming in at 12 feet, and Popcorn, a female white shark measuring 11 feet.

At the time of the MH1 Marblehead Buoy installation in 2016, it was the first receiver buoy in the North Shore to be a part of the Atlantic White Shark Conservancy network.

AWSC offers a tracking app called Sharktivity. Data is collected from many sources, including its buoy array, spotter plane, and app-user reports of in-person sightings of great white sharks in the area, the MH1 receiver’s website states.

Friends of Marblehead Public Schools helped fund the $3,000 buoy, and Rich Jordan, the founder of Jordan’s Marine, helped place it.

To learn more about the ASCW and the MH1 visit https://marbleheadweeklynews.com/oh-buoy-lets-find-some-sharks/.

  • Sophia Harris

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