HAB General Information
Learn about algae blooms in Florida, including red tide.
A harmful algal bloom (HAB) is the proliferation of a toxic or nuisance algae.
Florida red tides occur almost every year in the Gulf of Mexico and can harm marine animals and humans.
Report a fish kill or other wildlife effects, consult health authorities about human exposure, or locate other resources.
Karenia brevis, the Florida red tide organism, produces brevetoxins, toxins harmful to fish, marine mammals and birds.
A synopsis of human seafood poisoning syndromes associated with toxic algae in Florida's coastal waters.
Cyanobacteria, or blue-green algae, are commonly found as individual cells, clumps, filaments or large mats in Florida's lakes, rivers and estuaries.
Find out how dust from the Sahara Desert fuels annual Trichodesmium
blooms in the Gulf of Mexico.
Taxonomists revise species descriptions and classifications as scientific techniques improve. Karenia brevis, the new name for Florida's red tide organism, has undergone several taxonomic reclassifications.