.
And Fischer Hricko, 13, had to be rushed to hospital with "blood gushing out of his face" after he was attacked by a shark while lobstering in Florida Keys.
Six of the attacks reported by Tracking Sharks have been fatal.
Elizabeth Sauer, 68, was killed while on holiday in Egypt as she swam in the Red Sea on July 2.
A Romanian woman was found dead the same day after she was attacked as well.
On June 28, Bruce Wolov was swimming off Plettenberg Bay, South Africa, when he was attacked by a white shark.
Antonio Roseto Degli Abruzzi, 56, died from blood loss after a tiger shark took a chunk out of his leg during a March 20 attack.
Robert Hueter, senior scientist and director at Mote Marine Laboratory’s Center for Shark Research, also warned swimmers to beware, as the number of attacks will rise thanks to environmental initiatives to protect seals.
Sharks will follow their meal, he said, adding that wherever seals, dolphins, and other prey go, sharks will follow.
“This is a natural predator-prey relationship going back eons," he said.
“It’s not surprising that with a restored seal population, we see the predator of the seal there.”
Shark attacks are very rare but marine biologists say swimmers should still avoid wearing dark clothing and should not swim alone.