There were multiple confirmed sightings of sharks swimming off Cape Cod over the weekend, according to the Atlantic White Shark Conservancy, a Chatham nonprofit that tracks activity.
Sharks were detected eight times Saturday, including a great white named Broken Tail at night near a buoy off Newcomb Hollow Beach in Wellfleet, according to the conservancy’s Sharktivity app.
A shark is detected by a tag on them that is recorded by a receiver as they swim by. The real-time data helps pinpoint their location, according to the conservancy. Shark sightings are also tracked by people who spot them in the water and report the information to the organization.
On Saturday afternoon, a great white named Danny was detected by a buoy near Newcomb Hollow Beach. He had been spotted earlier in the day off Chatham’s North Beach Island. Another shark was detected late in the afternoon by a buoy near Head of the Meadow Beach in Truro.
Read more at BostonGlobe.com.