Tuesday, November 1, 2011

3rd Observation



There were many more organisms in my micro aquarium on November 1 than there was last time because of the food pellet added at on October 21.  The pellet contained fish meal, wheat flower, soy meal, krill meal, minerals, vitamins and preservatives, and these percentages of nutrients: crude protein 36%; crude fat 4.5%; crude fiber 3.5%; moisture 8% and ash 15%.  However the stentor that I observed last time was gone without a trace.  There were a lot of dead coleps on the top layer of soil(Patterson 1998).  I also observed and photographed a live one.  The other organisms I saw were a closterium, which is a green alga, and a Pinnularia, which is a diatom(Lund 1995, Patterson 1998).

References:
D.J. Patterson. 1998.  Free Living Protozoa.  New York (NY): John Wiley and Sons Inc. 26, 163 p.

J.W.G. Lund.  1995.  Freshwater Algae: Their Microscopic World Explored. Bristol (England): Biopress Ltd. 118 p.

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