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. What is the problem?
a. Trout population has increased

b. Insect population has increased

c. Insect population has decreased

d. Larger fish population has increased

Answer 1

The decline in the overall population of trout and larger fish is because the Insect population has decreased.

What is a population?

A population is a group of organisms of the same species living in the same habitat.

Population of organisms is affected by;

• availability of water
• space
• food and nutrients
• predators
• climate change

Since the population of trout is directly affected by the number of insect species, the decline in the overall population is because the Insect population has decreased.

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