Tuesday, November 16, 2010

Week 5 Observations

This is the finial week of observations, which is probably a good thing because the first thing I noticed about my tank is that the water had pretty much 2/3rds evaporated, and upon putting it under the microscope, I noticed that a lot of my larger organisms had died.


Observations:

Many of my rotifers, ostracods, and my Diptera had all perished by the finial week of observations, and my tank was murky and filled even more so with diatoms, cyanobacteria, and paramecium. My bladderworts all housed even more small ostracods, and I spotted a few clear ones swimming around- unlike the larger brown ostracods my tank housed in the beginning.

I did not find any new organisms in my tank the finial week, but there was definitely a decrease in the larger microscopic organisms then the week prior, probably due to lack of resources for food since so much water had evaporated.





Citations:
McFarland, Ken. An Inquiry into the Dynamic Microorganisms in Our Environment. Biology 111 2010, 4 Oct. 2010. Web. 12 nov. 2010.

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