Week 4

The aquarium revealed much more decay than in the previous weeks. Life in the aquarium seems to be depleting but is still a ways from absent.

The larger organisms seem to have eaten away at many of the smaller organisms and the living plants within the aquarium.

Many of the decay has accumulated at the bottom of the aquarium and life still seems to be most present in the lower regions.

There are still algeas thriving such as:
Spiragyra sp. (Prescott)

and Mougeotia sp. (Prescott)

Smaller organisms like Euplotes sp. (Pennak) and Halteria sp. (Pennak) are still roaming the aquarium but as food runs out they become more a target for the larger organisms.

Bibliography:

Pennak R. Fresh Water Invertebrates of the United States. New York. John Wiley and Sons, Inc.

Prescott G.W.. The Fresh Water Algae. Dubugue, Iowa. W.M.C Brown Company Publishers.