People who eat shellfish affected by brevetoxins can also come down with Neurotoxic Shellfish Poisoning, which can lead to gastrointestinal problems, tingling feelings in the mouth, the reversal of hot and cold sensations and other symptoms.įlorida's Fish And Wildlife Conservation Commission warns people to not swim in or around red tide waters over the possibility of skin irritation, rashes and burning and sore eyes. Brevetoxins that have become airborne may cause those near the beach to develop a cough or congestion. The red tide organism can also cause health problems in humans, such as skin irritation. Karenia brevis produce what are known as brevetoxins, which can kill marine life and birds. The toxic algae can kill fish and make humans sick Scientists can't predict when red tides will occur, but experts in Florida are researching prevention and mitigation measures to minimize their impact.
Red tides have been documented along Florida's Gulf Coast as far back as the 1840s, state officials said. When Karenia brevis algae multiply in large numbers, they can form blooms that turn the water a reddish-brown hue, giving the phenomenon the moniker "red tide." Though there are dozens of potentially dangerous algae species, one known to make an appearance each year along Florida's Gulf Coast is called Karenia brevis, a microscopic organism with "whip-like appendages" called flagella it uses to swim. When those toxic aquatic organisms multiply, they can form what are known as harmful algal blooms, which have been reported in every coastal U.S. Oceans and other bodies of water are filled with algae, a small number of which are toxic but often exist in such small concentrations that they pose little danger to people and marine life around them. Since it returned, grisly photos of dead fish washing up on Florida beaches have proliferated, and federal authorities are warning people of the possibility of respiratory irritation from contaminated air. The toxic organism that paints the waters red was detected in February and was found at higher-than-normal levels in several Southwest Florida counties in recent days, state officials said. The harmful "red tide," which has been known to discolor coastal waters and kill marine life off the coast of Florida, has returned for another year.
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