Science Lake Field Trip

Environmental Focus

B. Sample as many habitats as possible to see what type of organisms live in each. Then answer the following:

What are the life zones in this lake, and what kinds of creatures inhabit them?

You can separate this lake into two zones. The Linetic zone, which is the middle area of the lake contains most fish and other larger living organisms such as turtles. The other zone in this lake is called the Litoral zone. The Litoral zone is the area where the water meets the bank. This zone contains various forms of plant life and other smaller organisms.

How do dissolved oxygen levels in the water change through the seasons? When this lake freezes over in the winter (or if it did), what effect on oxygen levels does that have? Why?

The melting of...