Sunday, November 16, 2014

3 observation

Patterson, D. J., and Stuart Hedley. Free-living Freshwater Protozoa: A Colour Guide. London: Manson, 1996. Print.



This week 6 new organisms were observed in my micro aquarium
The first organism observed was Closterium sp. (fresh living water protozoa, Patterson)
A Closterium sp. is an organism that is a genus of algae and its family is Closteriaceae. A Closterium sp. is a crescent-shaped or elongated desmid. It also contains a cell wall that has pores to secrete mucilage.
 
The next organism observed was Difflugia sp. (Fresh living water protozoa, Patterson)

A Difflugia sp. is an organism that is the largest genus of Arcellinida. Difflugia sp. Species with an agglutinated shell, with terminal, round, oval, lobed or teethed aperture, some with necklace but never with internal diaphragm.

The next organism was Oscillatoria sp. (Fresh living water protozoa, Patterson)

A Oscillatoria sp. is a genus of filamentous cyanobacterium which is named for the oscillation in its movement. The filaments in colonies can slide back and forth against each other until the whole mass is reoriented to its light source.

The next organism found was a Pennate Diatom sp. (Fresh living water protozoa, Patterson)
a Pennate Diatom sp. are divided into two groups: pennate diatoms without a raphe known as araphids, and pennate diatoms with a raphe, known as raphids.
 
The next organism found was a Rotifer sp. (fresh living water protozoa, Patterson)
A Rotifer sp. makes up a phylum of microscopic and near-microscopic pseudocoelomate animals. They can be found in many fresh water environments.
 
The last organism that was observed was Spirogyra sp. (fresh living water protozoa, Patterson)

Spirogyra sp. is a genus of filamentous charophyte green algae of the order Zygnematales. It was named for the helical or spiral arrangement of the chloroplasts that is diagnostic of the genus. 

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