Scientists approximation that 50-80% of the oxygen manufacture on Earth comes from the ocean. The majority of this manufacture is from oceanic plankton drifting plants, algae, and some bacteria that can photosynthesize. One specific species, Prochlorococcus, is the smallest photosynthetic organism on Earth. But this little bacterium produces up to 20% of the oxygen in our whole biosphere. That’s a higher fraction than all of the tropical forests on land joint.

Scheming the exact percentage of oxygen shaped in the ocean is difficult since the amounts are constantly changing. Experts can use satellite imagery to track photosynthesizing plankton and approximation the amount of photosynthesis happening in the ocean, but cable imagery cannot tell the whole story. The number of plankton changes seasonally and in reply to changes in the water’s nutrient load, fever, and other factors. Studies have shown that the quantity of oxygen in specific sites varies with time of day and with the currents.

It’s important to recall that although the ocean crops at least 50% of the oxygen on Earth, roughly the same amount is expended by marine life. Like animals on land, maritime animals use oxygen to respire, and both florae and animals use oxygen for cellular breathing. Oxygen is also spent when dead plants and animals deterioration in the ocean.