A- Raccoon (top predator)
B. Fish (secondary consumer)
C. Insect larvae (primary consumer)
D. Algae (primary producer)
In this pond ecosystem, the primary producer is the ALGAE, which means it has the GREATEST amount of total energy available.
The average net primary productivity of this pond ecosystem is substantially lower than the average net primary productivity of estuary ecosystem.
Therefore, compared with an estuary ecosystem, the producers in the pond ecosystem store chemical energy in their tissues at a SLOWER RATE, thus making chemical energy LESS readily available to the consumers.