Dead Fish
© News4JaxThousands of fish turn up dead in the lake at Hannah Park. Scientists say golden algae caused the fish kill.

Atlantic Beach, Florida -- Dozens of dead fish have risen to the surface at a lake in Hanna Park. The floating fish have produced a foul smell and an eerie site.

"I've seen a couple of people biking around, but as soon as they get to this area, they turn right back around," visitor Heather Lenier said.

The sight and smell is enough to keep people away from the lake.

Scientists said an outbreak of golden algae is responsible for the death of thousands of fish. The algae is producing a toxic chemical. When fish come in contact with the tainted water, their blood cells literally explode.

"Those cells that carry oxygen are being ruptured," biologist Dana Morton said. "Oxygen is not getting to the fish, and the fish look like they are suffocating, which they really are."

Morton said that as harmful as the algae is for fish, it is harmless for humans.

In 14 years of testing the water in the lake, scientists said they have never documented golden algae. In fact, it's more commonly seen in the lakes and ponds of Texas than Florida.

Scientists said the lethal plant has been present for years at the lake in very small amounts.

"All species have different conditions under which they bloom and go crazy," Morton said.

Morton said park officials plan to let the golden algae bloom and run its course, but unfortunately thousands of cat fish, bass, crappie, mullet and the other freshwater fish that live in the lake will die in the process.

"It's going to probably take a couple seasons before things normalize again," Morton said.

The Mayor's Fish-A-Thon happens to be Wednesday, and nearly 1,700 people are expected to fish in the lake, so park staff are hoping to get the algae bloom under control before then.