Image of the Day

132 / 366

Primulin stained Alexandrium fundyense/tamarense cysts amongst other organic matter.

Stand Outs

Stained with primulin dye and viewed under a microscope (magnfied 100X), cysts of the harmful algae Alexandrium fundyense and its less dangerous cousin Alexandrium tamarense stand out in yellow and bright green from organic matter and sediments collected from the Gulf of Maine. According to a seafloor survey conducted in the fall of 2007 by researchers from Don Anderson’s lab, the number of Alexandrium cysts—the dormant, seed-like stage of the algae’s life-cycle—is more than 30 percent higher this season than what was observed in the sediments prior to the historic red tide of 2005. (Photo by Kerry Norton, Woods Hole Oceanographic Institution)


Image and Visual Licensing

Text, images, graphics and other material contained on this website are subject to copyright. For more information or to license material, please contact the WHOI Media Relations Office, or (508) 289-3340.

Explore Visual WHOI

Search multimedia database

License our Visuals