What will happen to the ocean if all the algae and plankton disappeared?

Answer 1

If all of the Phytoplankton disappeared the Eco-system of which it lived in would dissappear. This is because Phytoplankton is the producer in a food pyramid which means that it provides for all of the levels above. Even a Barracuda depends on Phytoplankton to feed ir's prey.

Answer 2

Few clues...

• no more phytoplankton => no more zooplankton => no more fishes and even less whales => no marine ecosystem

• no more phytoplankton => no more carbon fixation in the ocean => increase of 1/3 in the accumulation of CO2 in the atmosphere

• no more phytoplankton => no more oxygen production in the ocean => only bacteria can survive, and decrease of 40% in the global oxygen production on Earth.

Answer 3

Well I know for a fact that most ocean animals (with gills that use oxygen) would die, because plankton use carbon dioxide to create oxygen in the water. It would also cause a huge chain reaction in the food chain, because almost all animals in the sea would die from starvation.

Answer 4

This would cause *severe* changes in many cycles necessary for life.

Answer 5

All animals living in the sea would die.

Answer 6

It would die