Red Tide in other areas
Red tide in other locations.
Florida red tide blooms have been documented on the Florida west coast since the 1800s. More recently, Florida red tides have spread as far as the eastern coast of Mexico and have been entrained in the Gulf Loop, the current that brings Gulf waters to the shores of North Carolina. Other brevetoxin-producing dinoflagellate blooms have been identified in diverse geographic locations worldwide, including New Zealand, Australia and Scotland (Baden and Fleming 2007; Hernandez Becerril et al., 2007; Haywood et al., 2004; Kirkpatrick et al., 2004a; Nozawa et al., 2003; Steidinger et al., 1983).
Take the toxic algae blooms such as the red tide that has appeared off Maine this month.
Biologists don't understand how blooms start or stop. But they now have a clue to their demise thanks to research by Xavier Mayali, Peter Franks, and Farooq Azam at Scripps Institution of Oceanography.
They found that microbes called RCA cluster bacteria attack red-tide organisms, which are 25 to 30 times their size.
Several bacteria at a time attach to a red-tide cell and kill it. Professor Franks says it's "something like three chipmunks attaching themselves to an elephant and taking it down."
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