- Which fish population appears to be the most stable?
- Fish #3 appears to be prey species for which fish?
- What do you think is the primary diet of Fish #1? Fish #2? Fish #3? Why?
- What natural or human events may have accounted for the decrease in Fish #2’s size between years 2 and 4 and between years 16 and 18?
- What effect did the introduction of Fish #4 appear to have on the other fish species?
- What actions might the state fish agency have taken to maintain the population of Fish #2?
- What natural and human events may have caused all fish species to die in year 20?