14 Nov 2012 - This is my last blog entry. I viewed my MicroAquarium™, which had many floating carcasses, a plethora of water fleas, an increase in nematodes and
Loxophyllium sp. Dr. McFarland and I did find two different organisms:
Centropyxis sp. (Picture 1) and
Halteria sp. (Picture 2). We continued to scan but we didn't see any other new organisms. My aquarium went through what I believe is a typical life cycle; slow growth at the beginning while they were getting established, then increased growth, then as the food supply decreased organism growth and reproduction had a corresponding reduction. My MicroAquarium™ organisms were released into their larger containers where hopefully the survivors will continue to prosper.
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| Picture 1. Centropyxis sp. A testate amoeba with a flattened surface and a single aperature near the anterior end (Patterson, 1996). |
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Picture 2. Halteria sp. A rounded cell, which moves in a bounding motion due to the absorption and expulsion of water (Patterson, 1996).
Bibliography:
Patterson DJ. 1996. Free-Living Freshwater Protozoa: A Colour Guide. Washington DC: ASM Press. 95 p. and 155 p.
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