JACKSONVILLE, Fla. -- A beautiful day on the St. Johns river is interrupted in places by potentially toxic green goo.
It's not yet known if this batch is harmful. Experts are sending water samples to the lab and don't know when the results will be returned.
Scientists from the St. Johns River Water Management District just found it Tuesday from Doctors Lake through Ortega.
Fred Schaible has lived on the river in Orange Park for 16 years and didn't have to look far to find it.
"I had my neighbor come out and look over our bulkheads and saw this swirling ... I went halfway out of my dock, the dock is about 300 feet out, and it was there also," Schaible said.
Experts say the algae disappears in sustained cold weather. It was last sampled in November and found to have a low amount of toxins. It reappeared because of warm weather, lack of wind and a glassy like water surface.
It's making people like Schaible wish for the times of a healthier river.
"When I was younger I always walked in the river and so forth. Soft shell crabs, things like that I wouldn't do that now," he said.
The health department last issued an alert in October, advising people to stay away from the green algae blooms.
It's last sampling in November showed low toxicity levels, but exposure could lead to dangerous health effects for people and pets.