Question

Which of the following is an example of a quaternary consumer in aquatic ecosystems?

Options

• Small carnivorous fish

• Zooplankton

• Small fish

• Shark

Answer 1

Shark is an example of a quaternary consumer in aquatic ecosystems and represents an apex predator. Sharks occupy the 5th trophic level as top consumers that are rarely preyed upon. Zooplankton are primary consumers, while small fish are secondary consumers.