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Image : Researchers Report Potential for a "Moderate" New England "Red Tide" in 2012

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close up of Alexandrium cyst
Cysts of Alexandrium fundyense, the algae notorious for producing a toxin that accumulates in clams, mussels, and other shellfish and can cause paralytic shellfish poisoning (PSP) in humans who consume them. The cysts in this photo are 35 - 50 micrometers in size, about the size of the point of a pin. (Photo by Don Anderson, Woods Hole Oceanographic Institution)


Last updated: July 7, 2014

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