How much oxygen comes from the ocean?

At least half of the oxygen produced on Earth comes from the ocean, mostly from tiny photosynthesizing plankton. But marine life also uses roughly the same amount of oxygen to breathe, for cellular respiration, and in the decomposition process.

Ocean - Wikipedia

In what way do plankton particles participate in the oxygen cycle

World Oceans Day

Does Algae Produce Oxygen?

Humans will always have oxygen to breathe, but we can't say the

TRAVEL WITH ME AROUND THE WORLD!

Launch of Ocean oxygen publication

What Process Is Responsible for Producing Most of Earth's Oxygen

Alvin Foo on LinkedIn: 50-80% of the oxygen production on Earth comes from the ocean. The…

Ask-A-Naturalist: Do phytoplankton produce more oxygen than a rainforest? If so, does the oxygen they produce go into the atmosphere or does it just remain dissolved in the ocean?

Frontiers Health Risks and Benefits Among Surfers After Exposure

How does ocean produce oxygen?