Question

Organisms produce their own energy or provide energy for other organisms in a food chain. Yellowfin tuna, or Thunnus albacores, are large sport fish found in tropical and subtropical waters around the world. They typically school under objects such as boats or patches of driftwood for protection from predators. Schooling under these structures also provides yellowfin tuna with easy access to smaller fish that may be foraging for food.

A group of large fish.

Photo by NOAA

Which trophic level does yellowfin tuna fill in a food chain?

producer
primary consumer
secondary consumer
tertiary consumer

Answer 1

Secondary consumer.

Yellowfin tuna are carnivorous predators that eat smaller fish (which are often primary consumers), so they occupy the secondary consumer trophic level.