Question

mid-term review
use the image below to help you answer this question.
chesapeake bay waterbird food web
quaternary consumers: osprey, bald eagle
tertiary consumers: gulls and terns, wading birds, large piscivorous fish, sea ducks, tundra swan
secondary consumers: small piscivorous fish
primary consumers: zooplankton, benthic invertebrates, bivalves, herbivorous ducks, geese and mute swans
primary producers: phytoplankton, submerged aquatic vegetation (sav), vegetation
based on this food web, which tertiary consumer is eaten by both bald eagles and osprey?

• sea ducks
• large piscivorous fish
• tundra swan

Explanation:

The food web shows that both bald eagles and osprey (quaternary consumers) have arrows pointing from Large Piscivorous Fish (a tertiary consumer) to them, indicating they prey on this fish. Sea Ducks and Tundra Swans are not eaten by both predators as per the web.

Answer:

Large Piscivorous Fish