Dissolved oxygen web

 

Dissolved Oxygen (D.O.) (Dee-ooh) is oxygen dissolved in water. It gets there by diffusion from the surrounding air; aeratation of water that has tumptled over rapids; and as a waste product of photosynthesis. Fish and aquatic animals cannot split oxygen from by green plants. A total of 3-4 of earth's oxygen supplies produced phytoplankton in oceans oxygen. When D.O. levels drop below about 3.0 p.p.m. even the rough fish die . The table in this section shows representative comparison .

Dissolved Oxygen || DO || High DO || Results