Fish and Wildlife Research Institute

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Red Tide

A red tide is a higher-than-normal concentration of a microscopic alga (plant-like organism). In Florida, the species that causes most red tides is Karenia brevis (K. brevis).



Red Tide Current Status

FWC reports on the current status of Karenia brevis blooms using tables, static maps, and interactive Google Earth maps. Archived status maps can be found in our Flickr gallery.

Red Tide FAQ

Do you have questions about Florida's red tide? Find the answers here.

HAB General Information

Learn about algae blooms in Florida, including red tide.

Tools for Tracking Red Tides

FWC scientists combine field sampling with tools maintained by state and federal partners to track red tides and their effects.

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FWC Facts:
The Gulf sturgeon spawns 140 miles upstream from the mouth of the Suwannee River, one of the last pristine rivers with no dams to bar its path.

Learn More at AskFWC