October 30, 2009 the Botany 111 MicroAquarium was observed. Observations by hand were done first and showed had similar qualities to that of previous weeks observations. The substrate was still segmented into three distinct sections. Plants A and B were both wilting and gradually losing their green color. The food pellet that was placed in the aquarium from the previous week was still present and looked unaffected other than being wet from water submersion.
Immediately upon microscopic observation under 10x the obvious creatures seen were multiple rotifers, green algae, and nematodes. The abundance of life was much greater this week than the previous week.
Immediately upon microscopic observation under 10x the obvious creatures seen were multiple rotifers, green algae, and nematodes. The abundance of life was much greater this week than the previous week.
Rotifers are metazoa and are in the same class as nematodes and flatworms (Patterson 1996).
Coleochaete irregularis a type of green algae, identification made easy by the non-tapered ends (Forest 1954).
An addition that was found within this weeks MicroAquarium was the addition of Vorticella. You can notice within the video posted below that these organisms are highly sensitive to any movement.
While these are the most prevalent organisms found within the MicroAquarium it can be assumed that based on this weeks large growth of orgainsms from the previous week that next week may still some growth in abundance, but not quite to that of this week as last week was when the MicroAquarium was given a food pellet.
Sources Cited
Forest, Herman Silva. 1954. Handbook of Algae. The University of Tennessee Press.
Patterson, D.J. 1996. Freeliving Freshwater Protozoa A Color Guide. Manson Publishing. London.
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