A strangely persistent bloom of blue-green algae at Lost Creek Lake has experts wondering whether the reservoir's water quality has diminished or the toxic algae has somehow genetically mutated to ward off competition for fall dominance here. The U.S. Army Corps of Engineers will begin a three-year water-quality study at the reservoir to see whether any environmental changes have tipped the water in favor of anabaena flos-aquae.
The algae bloom triggered a Sept. 16 public health advisory against water contact and eating of trout or bass caught at the 31-year-old reservoir on the upper Rogue River. This bloom has persisted in spite of water temperatures in the mid-40s, and new water samples showed algae levels still at more than 130 times higher than safety thresholds set by state health officials.
Read more: Southern Oregon's Mail Tribune, December 14, 2008
http://www.mailtribune.com/apps/pbcs.dll/article?AID=/20081214/NEWS/812140335
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