Week 5

The number of moving organisms dropped tremendously since the last observation. Only about one fourth of the moving organisms from the last observation are still there. The majority of the moving organisms left are in the bottom only a few on the sides. There are only three or four moving organisms in the middle. The only moving organisms left are rotifers and protozoa and one seed shrimp. However many more stationary organisms have appeared. A sudden increase in the Diatoms population and they started taking up more and more space with the absents of moving organisms. Arcella's population doubled and so did they ctinosphaerian. The roots of the plants in the container increased by a lot to, and are now almost all over the tank. Only one thing was new this time and that was the seed shrimp. It is in a ball shape with big hairs that look like cat whiskers coming out of the front. It went up and down the side of the wall eating everything it could. it just moved up and back and up and back along the wall. 

For this experiment the conclusion is that the moving organisms eventually ate up all of the food and died off. While most of the stationary organisms increased because they did not eat the same thing to survive. This experiment shows that every habitat has a limiting capacity unless more food is added organisms will die off until it reaches its carrying capacity.

Identifying of the organisms came from three books which are; Free-Living Freshwater Protozoa: A Color Guide by D.J. Patterson, Guide to Micro life by Kenneth G. Rains, and How to Know The Protozoa by Theodore Louis John and Frances F. Jahn. In every blog the descriptions and names came from one of these three books. Also in week three I incorrectly said that there where Turbellaria after looking more in depth at the books they are really Dieptus.

Rotifer

Diatoms

Arcella

Seed Shrimp