Sunday, October 24, 2010

Aquarium Observation Friday October 24, 2010

Today I noticed a large growth in organisms, especially with larger sized organisms.  I noticed 9 different organisms this time which is a much more considering I saw about two different kinds last observation.  The first organism I saw was what I think is a Actinospaerium which was a green ball with green tentacle looking things protruding from it.  The next was a larger organism which I believe to be a Daphnia, which resembled something almost like a crab.  It seemed to feed along the edges of the aquarium, mostly around the bottom soil level.  The next organism that I observed was a pod shaped one that had hair like growth from it.  These were the same organisms that I observed last time, but were larger and more numerous than before.  I noticed many of them along the dirt and especially on the plants in which they seemed to be feeding on those.  These moved very quickly around.  The next organism that I saw was shaped like a small ball and moved in a very jolt-like way.  These were noticed in a large quantity around the bottom corner of the tank where the dirt had moved away.  The next organism that I observed was what I believe to be a Euglena, which was pod shaped and had a tail like thing.  These seemed to have a worm-like movement.  Another organism that I observed was what I believe to be a Rotifer, which moved in a twitching way and seemed to be concentrated along the side of the tank where there was some green growth beginning.  One organism that I saw looked pill form and was a vibrant darker green color, but I was only able to see one of these.  Another organism that I observed was a Cyclops, which appeared to have a moustache looking appendage on it.  The last organism I observed was the same worm-like organism that that stayed pretty well hidden in the soil at the bottom of the tank.  A thing to note is that there were several brown spots appearing on the plants, which could possible be a result of the organisms using them as a food source.  Another thing to note is that there were a few air bubbles present which show that some form of respiration is occuring whether it's from the plants going through photosynthesis or through microbial respiration.

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