Monday, November 18, 2013

Week Five MicroAquarium Observation


     During this final week’s observation, I noticed a decline in the past seemingly abundant amount of bodos.  Although the bodos declined, most other life appeared to have increased. This increase came in the form of diatoms of varying type (figure 2,3), many more Cyclopes, more worms (Aeolosoma Ehrenberg) and a newly identified Dero sp. This was identified using the posterior of the organism and is pictured in figure 1 below (Pennak).  The part pictured is of the rear end, used to identify it are the clear tentacle like protrusions coming out if the larger green plant mass.  The dark linear mass in the middle of the plant mass is the rest of the organism.  An increase of life within the soil was noticed, though the organisms were too concealed to identify. The water plants appear healthy and green and still have what appear to be cyanobacteria healthily growing among most of them (figure 4). 


Figure 1

Figure 2

Figure 3

Figure 4

Identified Organisms:
Bodos 
Midge
Cyclops
Aeolosoma Ehrenberg
Dero sp.
Diatoms

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