Each year, during the summer months, these predators move up the Atlantic coast of the United States, towards New England. The peak of the season occurs between August and October.
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It is an animal protection success with unfortunate repercussions: great white sharks have been increasing in number in recent years off the American east coast, increasing the likelihood of unfortunate encounters with swimmers.
Each year, during the summer months, these predators move up the Atlantic coast of the United States, towards New England. The peak of the season occurs between August and October.
Temporarily closed beaches
In Cape Cod, Massachusetts, the main character of the Sea teeth has thus become a tourist attraction, adorning caps and t-shirts. But beaches have also already had to be temporarily closed this year because of the presence of the animal.
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Nearly 300 great white sharks have been tagged over the years, and about 10 of them are already present in the area, according to Gregory Skomal, shark biologist for the state of Massachusetts. He estimates that more than a hundred great white sharks may pass through these waters each year.
Regulations have been put in place in the Atlantic since the 1990s to protect them from fishing.
White sharks tend to swim closer and closer to shore to hunt one of their favorite prey: seals. They too have been protected, and their numbers are growing. Result: more sharks, venturing closer to swimming areas.
« Shark attacks are very rare, but in the last ten years we have seen more of them », this Gregory Skomal.
Unusual number of attacks
In New York State, the governor has just announced additional surveillance patrols, including by drone or helicopter.
On the tourist beaches of Long Island, several shark bites have already been reported by the press – the white shark is not necessarily responsible, several other species evolving in the region, in particular tiger sharks and bull sharks. This number of attacks is unusual, after three years without deploring any.
According to Gavin Naylor, director of a research program on sharks at the University of Florida, this observation is linked to the increased presence this year of certain fish attracting predators, possibly due to warm currents.
But if locally things can thus vary greatly from one year to another, at the global level, around 75 shark attacks are still recorded each year – after a drop to around 60 during the two years of the pandemic. The number of deaths is around five.
In the past twenty years, only two deaths have been reported in northern Delaware in the United States, in Cape Cod in 2018, and in Maine in 2020.
But in the future, it is reasonable to think that the number of victims will increase.
Surfers, who venture further into the water, accounted for half of unprovoked attacks in 2021. Further south, Florida, with its many tourist beaches and tropical climate, still concentrates 60% of American attacks – and nearly 40% of global attacks.
Limit the risks
Sharks are far from the bloodthirsty beasts sometimes portrayed in movies. Studies have shown that they can mistake surfers or bathers for their usual prey – in particular white sharks, which have rather poor eyesight.
With climate change, the expert expects that the increase in ocean temperatures will gradually lengthen the season during which sharks are present in the northern United States.
So what can be done to limit the risks? An application exists so that everyone can report having seen a shark. And if a large number of birds hunt fish, ” this probably means sharks that also feed on them are present warns Nick Whitney, scientist at the New England Aquarium.
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