The MicroAquarium was observed for the fourth time on November 5th. Several clusters of dead organisms, such as Phialina were seen in the bottom of the aquarium. Phialina are torpedo shaped ciliates (Ward, Whipple 1918). The leaf residue had fully settled to the bottom of the aquarium and some of the water was gone. Air bubbles, ciliates, and halterians, which are flagellates were still present. A cyanobacteria with a heterocyst and decompsing green algae were also viewed. Some new organisms that were identified were Vorticella, Chania teres, and Coleochota irregularis (Forest 1954). All of these organisms were identified with the help of Dr. McFarland. More water was added at the end of my observation. From top to bottom the pictures are of Vorticella and Coleochaete irregularis.
Ward HB, Whipple GC. 1918. Freshwater Biology. NewYork (NY): John Wiley and Sons, Inc.
p. 272.
Forest HS. 1954. HandBook of Algae. Knoxville (TN): The University of Tennessee Press. p. 89.
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