Jonathan Hernandez, a Florida resident, said that he was spearfishing off Abaco Island when the situation unfolded.
The shark bit Hernandez's left calf but he survived to tell the tale.
"I was able to get away, kicking away. I looked in the water, and I could see in the water that my calf was hanging and gushing blood into the water," he said. "It all happened so fast it was kind of a blur of whitewater and fins and thrashing."
The diver's companions fashioned a tourniquet for him, which Hernandez credited for saving his life. He said his left calf was "shredded" and that he can't start physical therapy for another six weeks.
Hernandez said the attacks in the Bahamas stem from businesses that take people to sharks and let the tourists feed them.
"They're associating humans with getting food, and it's making it very dangerous to be in the water, whether you're spearing or you just happen to be snorkeling near where they're feeding them,'' he said.
It wasn't clear what type of shark attacked Hernandez.
While Hernandez survived the attack, 21-year-old Jordan Lindsey died after getting attacked by three sharks near Rose Island while snorkeling.
"She said it happened so fast, and no one yelled anything. My wife got to Jordan and pulled Jordan to shore by herself. The medical staff said they still had to do an autopsy. My wife said no one told her there were three sharks," he said.
Lindsey's right arm was ripped away and the sharks bit her other arm and both legs, among other areas. She was rushed to a nearby hospital but was soon pronounced dead.
Echoing Hernandez, a shark expert said that the attack on Lindsey may have been triggered by something, listing chum being dumped nearby as a possibility.
Ritter said pictures of the bite wounds would provide definitive evidence that could be used to find out more about what happened.
“That would give us the answer,” he said. “So far, until we have seen the pictures, we cannot see how many sharks or what kind of species [were involved]. The wound pictures would tell the story.”