Recently, we at The Freeman’s Journal have become aware that some of our readers, and others who may not be our readers, still have questions about the toxic algae blooms that of late have been creeping up on us from the depths and edges of our beloved Otsego Lake. So here goes an effort to get it right.
According to NOAA, whose satellites, along with those of the EPA, NASA and the U.S. Geological Survey, are picking up images of them, these blooms have been found in 2,300 lakes in the contiguous U.S., and in another 5,000 bodies of water in Alaska.
The algae, often — but not strictly — of a blue-green color, is cyanobacteria, which grows naturally in fresh water, though it also also been spotted, although less frequently, in brackish and salt water. The bacteria can also be red, neon or brown, and when it dies it exudes a rotten smell. When the water is warm, stagnant and nutrient-rich, as it presently is here, the algae can burst into blooms, which is what we are seeing along the shores of the Lake. The blooms can, and do, produce a toxin, called cyanotoxin, which can enter the mouth, nose and eyes, or be inhaled with water vapor. They can also keep blooming into the early fall, until the temperature drops.