Tag Archives: cyanobacteria


Upcoming Fall Fruit Workshop

See web page http://www.leereich.com/workshops for details.

The River Runs Green

    Crossing the bridge over the Wallkill River on my way home, I glance to my right to admire the river itself. What a beautiful color it has turned, a bright turquoise. Ponds I pass also have taken on this bright complexion, for which we can thank, or curse, organisms known as blue-green algae (heretofore referred to as BGA).
    Algae, they are not, though. BGA are bacteria known as cyanobacteria. “Algae” generally refers to eukaryotes, organisms with distinct nucleii and specialized organelles. BGA are prokaryotes, lacking such features.
    BGA can be toxic, which is good reason to curse them. Drinking or swimming in contaminated waters can cause problems to humans and other animals, including dogs, who seem to be otherwise able to drink almost any water without ill effect. The “cyan” in the name and the …

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