Phosphorus as phosphate is as important for aquatic plants as it is for crops on land, and very often it is also the limiting nutrient. For algal plankton productivity, it can almost be said that it is the limiting factor, as we mostly do not care too much about what type of plankton carries out photosynthesis and carbon fixation. Should nitrogen as nitrate or ammonia be in short supply, while phosphate is relatively abundant, blue-green algae with nitrogen fixation ability will quickly form a large part of the algal community and secure biomass production until phosphate becomes limiting.
KeywordsPhosphorus Phytoplankton Photosynthesis Sewage Stratification
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