In this lesson, you have learned about how the Ojibwe people use sampling to help keep track of the fish populations in their lake. You will now read more about the importance of fishing and about the problems of overfishing.

Read Keeping a Steady Population (PDF).

To prevent the overfishing of walleye, the Ojibwe want to set some limits on the size of walleye that are caught in a local lake. Describe how they could use a population survey to help them figure out what fish are okay to catch and what should be put back into the lake.