Thursday, October 30, 2008

October 29 Observations

The theme for this week's observations is population increases. Just about all of the original organisms i observed a week ago were nearly doubled. There was also a growing population of various blue green algae. I did notice a couple other new organisms, however. In the top waters, I found some heliozoans, which were non-chlorophyll based, single celled organisms. They were stationary, round, and had rays extending from their body, like the rays of the sun. I also saw many different forms of diatoms, both small and big. The smaller ones were too numerous to count and were stationed in colonies. One other that i saw was the Busaria, which is distinguishable by it's large gut and many cilia.
The main organism in the middle waters was the Halteria, which can be distinguished by it's motion of moving in strides, separated by short pauses. Instead of cilia, it has a row of equatorial spikes on one side for movement. There were also a few Gastrotrich's as well.
The muddy waters were the most populated. I observed basically everything i had before, except in greater numbers. These organisms include: Diatoms, Carpenter's Ruler, Gastrotrich's, Paramecium, Epistylus', Rotifers and also Heliozoans. The Gastrotrich's were observed digesting other organisms. Still, the most peculiar one i have seen is the Carpenter's Ruler. Please observe:

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