Question

How are phytoplankton important to our ecosystem? (Journey to the End of the Earth)

Answer 1

Phytoplankton are critical to our ecosystem because they constitute the foundation of the marine food chain. Small sea creatures feed on them, and larger marine animals depend on them to survive. Thus, phytoplankton is the foundation of all sea life.

They also play a vital role in maintaining the Earth’s climate. Photosynthesis allows phytoplankton to absorb vast amounts of CO₂ and create oxygen. In reality, they make a major contribution to the global oxygen supply. Any decline in their numbers caused by global warming has the potential to disrupt marine life and disrupt the overall ecological balance.