Biologists find diatom to reduce red tide's toxicity

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Skeletonema costatum (the chain-like organism) has been found to reduce the toxicity of the red tide organism (the round cells) to both animals and other algae. Credit: Georgia Tech
Skeletonema costatum (the chain-like organism) has been found to reduce the toxicity of the red tide organism (the round cells) to both animals and other algae. Credit: Georgia Tech

It's estimated that the red tide algae, Karenia brevis, costs approximately $20 million per bloom in economic damage off the coast of Florida alone. Scientists at the Georgia Institute of Technology have found that a diatom can reduce the levels of the red tide's toxicity to animals and that the same diatom can reduce red tide's toxicity to other algae as well. If scientists can learn to use this process to reduce the toxicity of red tide, they could reduce the vast amount of economic damage done to the seafood and tourism industries. The research appears as articles in press for the Web sites of the journals Harmful Algae and the Proceedings of the Royal Society of London B.


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