Recent research has led the scientists to think Georges Bank is home to a separate and distinct population of the toxic algae, which still holds some mysteries for the researchers. Coastal shellfish populations are directly exposed to the toxins when the blooms make landfall, but scientists remain uncertain about the conduit for toxicity from the surface ocean to the deep shellfish beds on Georges Bank, located at about 50m depth. (Illustration by Jack Cook, Woods Hole Oceanographic Institution)
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