Contact: Thomas Posch
posch@limnol.uzh.ch
41-446-349-224
University of Zurich
Caption: The cyanobacteria Planktothrix rubescens (Burgundy blood algae) in Lake Zurich. The threads are only 0.005 by two millimeters in size, but primarily form a mass presence at a water depth of 12 to 15 meters.
Credit: UZH
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