Sharks usually move north during the summer months, but this year’s migration is larger and much earlier than in previous seasons, the expert says. changing of the climate guilty.
Dr. Tracey Phanara, an environmental engineer and scientist at the National Oceanic and Atmospheric Administration (NOAA), told DailyMail.com that not only climate change, but also La Niña is an important factor.
Dr. Tracy FanaraAn environmental engineer and a National Oceanic and Atmospheric Administration (NOAA) scientist told DailyMail.com that not only climate change but also La Niña is a factor.
“This is the third year of La Niña, which is like climate change on crack,” she said in an interview.
NOAA forecasts that La Niña will also continue until 2022, and the likelihood of it decreasing at the end of summer in the northern hemisphere.
“Migration has always been [but] now the productive areas of the ocean are changing due to the climate, as well as the temperature, which can change in places where sharks congregate,” said Phanara.
“In addition, seals and sea lions are distributing their ranges differently due to climate change, which is also causing sharks to explore new areas.”
Apex predators will also be lurking closer to the coastline this season, with two attacks reported on the same beach in Long Island, New York.
Along with climate change and La Niña, the Phanar has other theories as to why the northeast is infested with sharks.
“It could be overfishing that is causing the sharks to come closer to shore, or it could be more people in the water,” she said.
Sharks typically move north during the summer months, but this year’s migration is larger and much earlier than previous seasons, and experts say climate change is to blame. Pictured is a shark tracking map from OCEARCH showing all tagged sharks.
“This is the third year of La Niña, which is like climate change on crack,” Fanara said. NOAA forecasts that La Niña will also continue until 2022, and the likelihood of it decreasing at the end of summer in the northern hemisphere. Pictured is a map showing the path of La Niña.
Overfishing deprives sharks of their main food source, forcing them to look elsewhere for something to eat, and that may be closer to the coastline.
“There are more interactions between humans and these animals as they go where they can find food,” Phanara said.
“Fishermen complain of predation.”
However, the warmer waters of the ocean play a huge role in sending a large migration northward.
“Sharks that love warm waters (bull, tiger, dusky, spinner, silky and blacktip sharks) can now move further north,” Phanara said.
“Sharks that love cold water are also moving north to areas that didn’t exist before, like seeing more white sharks in Maine.”
On July 12, a great white shark was sighted near a beach in the Gulf of Maine, which the Conservatives named Luke.
A little further south, in Cape Cod, another one was spotted on July 11th.
“Sharks that love cold water are also moving north to areas where they weren’t there before, like seeing more white sharks in Maine,” Phanara said. Pictured is a large white-spotted swimmer near a beach in the Gulf of Maine on July 12, which the Conservatives have named Luke.
And there were two sightings off Nauset Beach: a shark named Granese and another named Kendal (pictured).
However, this one was a whopping 11 feet long.
And two sharks were seen off Nauset Beach: one named Granese and another named Kendal.
The large migration, according to Phanara, is also associated with the boom in the population of seals and sea lions.
“Seals and sea lions have been protected since 1972, when the Marine Mammals Act was passed, so their populations grew, which brought sharks closer to the shore,” Phanara explained.
“So the spread of pinnipeds is due to increasing numbers and competition for food sources… which again, this competition is another reason for more interaction with sharks.”
Last week, shark-tracking maps showed dozens of sharks lurking off the northeast coast.
Shark researchers have reported a massive 528-pound white shark off the coast of Cape Cod, while more than 14 sharks lurked in the waters around Long Island.
In late June, a lifeguard was bitten at Smith Point Beach and taken to the hospital to be treated for his injuries.
And on Wednesday at about 7:30 a.m. ET, a rower bit his leg on the same beach.