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Asterionella formosa

A common species of spring, summer and fall blooms in lake phytoplankton. This sample came from Lake Giles, PA in July 2005. It is known to have "one of the slowest sinking rates of freshwater phytoplankton." (Wehr and Sheath; Taxonomic References) The studies in Lake Giles are a part of the NSF funded UV Lakes Project from Lehigh University. Dr. Patrick Neale of SERC is a co-investigator. The project consists of using the lakes as model systems to look at UV damage and the effectiveness of different molecular mechanisms of UV defense in phytoplankton, bacteria, protozoa, zooplankton and fish at a range of temperatures.

Diatoms