In the process of photosynthesis, phytoplankton release oxygen into the water. Half of the world's oxygen is produced via phytoplankton photosynthesis. The other half is produced via photosynthesis on land by trees, shrubs, grasses, and other plants.

Algal blooms have always proved a challenge for the water industry. Yet could this organic matter,with the help of wastewater nutrients, be turned into a biofuel and help alleviate fossil fuel

 " They are so small as to be invisible, but taken together, actually dwarf massive creatures like whales. Plankton make up 98 percent of the biomass of ocean life. The most obvious difference between phytoplankton and zooplankton is that zooplankton is an animal while phytoplankton is actually a plant. Diatoms and algae are two forms of phytoplankton that are commonly seen. Tiny fish or crustaceans like krill are examples of zooplankton "