Observations Week Four

Overall, the amount of organisms present is similar to last week.

• The biggest difference between the two observations were the size and maturity of the organisms at this point in the expirement.
• Particularly the Cyclops sp.
• Which has grown horn-like features and a shell looking casing.

Before this week, there was no where near as much growth of the organisms, but a good amount of them are maturing and reachign the adult phases of their lives.

Again, the most action continues to occur at the bottom of the microaquarium and there are many
cyclops sp. that continue to live and grow along the bottom.

• Towards the top of the microaquarium the majority of the present organisms are singlecellular.

(Patterson, 1996)

Patterson D.J., Hedley S. 2003 – Free-living freshwater protozoa – a colour guide – Man- son Publishing, Washington, 223 pp.