This food chain can be found in the coastal waters of Virginia which organisms in this food chain are herbivore

Algae

Zooplankton

Damselfish

Barracuda

The right answer is Damselfish

The damselfish is a species of herbivorous fish that contributes to a balance of marine plants by eating algae among corals, to prevent the proliferation of algae and to promote the growth of coral reefs. The parrotfish (Scaridae) or "coral cleaner" has the same similarity of the diet with the same equilibrium that the damselfish offers, but it can also feed on coral.