Question

A population of trout in a lake has significantly declined over the past year. The main source of food for the fish in this lake are aquatic insects. Due to poor climate conditions, there are significantly fewer insects and thus, not enough food to sustain the population of trout in the lake. Trout is a food supply for larger fish in the lake and without enough trout, other fish are negatively impacted in the lake.



a. What is the problem described in the above paragraph?

b. What has caused the problem (limiting factor)?

c. Suggest a solution whereby humans can alter carrying capacity so that the trout population returns to its normal level? Explain your answer.

Answer 1

Trout's population decreases due to less food.

What is the problem?

The problem is unavailability of sufficient amount of food which decreases the population of trout fish. Food is the limiting factor which decrease the population of trout and disturb the whole ecosystem.

Humans can alter carrying capacity by providing more food so that the trout population returns to its normal level because food is the limiting factor here.

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