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Northeast PSP New England Harmful Algal Bloom / Red Tide Information
Map of the Gulf of Maine reveals the concentration of Alexandrium cysts buried in seafloor sediments, as detected by a WHOI-led survey in the fall of 2011. The cyst distribution map is used with computer models that simulate different scenarios of weather and oceanographic conditions in an "ensemble forecast" of the timing and extent of cyst germination and subsequent cell growth to form a regional bloom in 2012. (Courtesy of Don Anderson et al., Woods Hole Oceanographic Institution)