Tuesday, November 9, 2010

Third Observation 11-5-2010

At the beginning of my third observation I replaced the evaporated water with water at the front of the lab. I then went proceeded to use a microscope with a camera to look at my microaquarium. I saw about 10 nematodes and 20 rotifers.  I still have not seen any more vorticella. I then spotted something that resembled a snail with its shell moving very slowly around one of the plants. It is called a Difflugia, it is found either around sand or soil or on the surface of aquatic plants and has finger-like pseudopodia to move around with (Rainis and Russell 1996). I then saw another difflugia who "grabbed" at a rotifer and was moving the rotifer back and forth, shortly the rotifer got away and the dufflugia went about its business. After that I spotted a small organism that was moving very rapidly around the plant, it seemed to have a lot of little appendages around its body and was using them to move. I found out that it is called a Euplote (Patterson 2003). I then spotted several small organisms surrounding some larger organisms and appeared to be eating the larger ones. These were called Coleps and are found in marshes or shallows among submerged debris; they are active scavengers had have been preserved in the fossil record (Rainis and Russell 1996).




















Citation:

Patterson D.J. 2003. Free-Living Freshwater Protozoa: A Colour Guide. Washington (DC): ASM Press, p. 124. fig. 260.


Rainis Kenneth G, Russell Bruce J. 1996. Guide to Microlife. Danbury (CT): Franklin Watts, p. 90.


Rainis Kenneth G, Russell Bruce J. 1996. Guide to Microlife. Danbury (CT): Franklin Watts, p. 160.

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