Week 1, Control Jar: For the first week, the jars were filled with dirt, water, a dead stick, and a dead leaf. Once everything was inside the jars, you could barely see through it. The dirt was floating all round in the water, and the algae floated at the top and sat near the middle. Although it was hard to see, their was a small tadpole like organism that was moving fast around the edge of the jar. Week 2, Control Jar : The jar had settled down quite a lot over the course of one week. The jar was almost clear, and things behind the jar were some what visible. The mud settled to the bottom, but water could be seen in between layers of mud still. Since the mud had settled towards the bottom, the stick was more visible than before. Also, the algae had changed, it was all sitting towards the top, with only a few sitting towards the bottom. The ones towards the bottom seemed to have started to turn a brownish-black color. Still, there was visible organisms moving around in the jar. Once under the microscope, many more organisms were visible. The surface of the jar had no organisms, even after testing water, and …show more content…
Something that was also visible right away was the turbidity of the jar. For this week, the jar was almost completely impossible to see through. Other than the water level, and turbidity, the jar looked physically similar to what was observed on week 4. However, microscopically the jar was very different compared to the week prior. Under the microscope no organisms were seen on the surface, even after testing the surface multiple times . The water tested in the middle of the jar had a large long, tube like organism called a gonatozygon. Around the gonatozygon were small organisms called colpidium. These small fast moving organisms were also seen in the benthic observation of the experimental