Issue report

Algae

Green Cove Springs, Florida, United States

Reported by:
Justina Dacey

About this Location

St. Johns River : Jan Caswell's dock off of the river

Wide section of St. Johns River, water moderate flow
0 Observations
1 Issues
0 Comments
Jan caswell of green cove springs emailed lisa rinaman photos of a very thick algae around her dock for over 3 weeks now. it starts at the shore line and goes out about 100 to 150'. neighbors are experiencing the same thing.
Weather

Not sure

Have you seen this before?

Yes

Have you notified any other agencies?

N/A


Issue history

  • 2017-05-22 - 18:27:00

    Algae reported to St. Johns Riverkeeper : St. Johns Riverkeeper team by Justina Dacey.

  • 2017-05-23 - 12:48:00

    Justina Dacey is currently investigating this issue.

    Aquatic biologist, Robert Storm Burks confirmed from the photos it is not a cyanobacterial bloom which we know can release toxins in the water, but rather filamentous green algae which we often see in this area around Green Cove Springs. Which algae species could not be confirmed without putting it under a scope. Unfortunately, when the filamentous algae gets this thick, because of nutrients in the water and warm waters combined with sunlight, it will smother the native grasses that should be growing beneath it. In fact, most of it is attached to those grasses, and is blocking out the sunlight that they need

  • 2017-06-23 - 12:37:00

    Justina Dacey has closed this issue.

    Was not a cyanobacteria bloom, but fast growth in filamentous algae (not toxin producing algae).