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There's a terrifying reason no one goes in the ocean in this major Brazilian city

A reason with loads of sharp teeth.

RECIFE, A CITY in the Brazilian state of Pernambuco, has some of the most enticing beaches in the country.

When it’s 30 degrees and the sun is blazing overhead, nothing is more exciting than the idea of dipping into the water beyond those beaches. But you probably shouldn’t go in.

That’s because Recife — a host city for the most recent World Cup — has one of the highest shark-attack rates in the world.

Between 1992 and 2012, there were 56 attacks in the city’s waters. Of those 56 attacks, 21 were fatal, according to the BBC.

Boa Viagem, a Recife beach that is surrounded by high-rise buildings, certainly doesn’t discourage people from sitting on the beach. While staying at a hotel on the beach, I also saw a handful of people going in the ocean, in spite of shark-laden signs warning them away.

img_2175 Ariel Schwartz Ariel Schwartz

But locals tend to steer clear of the water. From the moment I arrived in the city, I was warned by residents to stay out of the ocean.

The most recent well-publicised shark attack in Recife happened in 2013 to a woman visiting from Sao Paulo. The 18-year-old, Bruna Gobbi, was rescued by lifeguards but later died.

Recife’s problem with sharks is a fairly new phenomenon. Before the 1990s, there were no reported attacks.

Here’s why: In the 1980s, a large port called Port Suape was built in Recife. During the construction, workers dredged estuaries and built long docks that spanned out into the ocean.

According to the BBC, this interrupted the breeding and hunting habitats of bull sharks, forcing them to move closer to the Recife beachline.

Sand Tiger Shark timsackton timsackton

Tiger sharks, meanwhile, are attracted to the beach area by the trash that is thrown overboard from shipping vessels, as well as by the low-frequency sounds the vessels emit.

The shark attacks began when Port Suape started dealing with heavy shipping traffic in the 1990s.

Pernambuco’s Committee for Monitoring Shark Incidents implemented a shark-monitoring program a decade ago, catching sharks, tagging them with tracking devices, and releasing them far from shore. No sharks are “culled” (captured and killed) in the process.

That program has largely been successful.

In 2014, Dr. Fabio Hazin, a professor at the Universidade Federal Rural de Pernambuco, detailed the results in a paper published in Animal Conservation.

“After 10 years of research, we came to the conclusion that shark culling is not necessary to mitigate shark peril off Recife,” he wrote.

There have still been shark attacks in the past decade. But the capture and release program is probably the best that Recife can hope for, barring the removal of Port Suape.

- Ariel Schwartz

Read: 68-year-old man attacked by shark in waist-deep water >

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