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WEKU
WEKU
Ayana Archie

A study estimates 800 great white sharks are swimming off the Cape Cod coast

A great white shark tries to bite a fish head being trolled though the water as researchers chum the ocean looking for sharks off the coast of Gansbaai, South Africa, in 2016. (Schalk van Zuydam/AP)

Scientists estimate that 800 great white sharks could be swimming in the waters off the Cape Cod, Mass., coastline, according to a study published Thursday.

From 2015 to 2018, researchers took 137 trips to Cape Cod and saw 393 sharks by using commercial spotter pilots and video cameras. Some sharks were left out of the count because videos of them were not crisp enough, they did not have distinct enough features to rule them out as duplicates or they did not return to the area year after year.

Researchers used the actual population counted and applied a model to reach the estimate.

Sharks go to that area to hunt seals, and they usually appear the most infrequently in June and July and peak in August and September, the study says.

Researchers encountered slightly more males, which could be because they are more easily identifiable by their reproductive organs. Most of the sharks were also juveniles and "subadults," the study said.

While great whites are known to hang around Cape Cod's waters, they have been difficult to track because of their elusiveness and smaller populations.

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