Eutrophication

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Eutrophication (Greek: eutrophia - healthy, adequate nutrition, development; German: Eutrophie) is the addition of artificial or non-artificial substances, such as nitrates and phosphates, through fertilisers or sewage, to a fresh water system. [1], i.e. the primary productivity of the waterbody. In other terms, it is the "bloom" or great increase of phytoplankton in a water body. Negative environmental effects include anoxia, or loss of oxygen in the water with severe reductions in fish and other animal populations. Other species (such as Nomurai Jellyfish in Japanese waters) may experience an increase in population that negatively affects other species in the local ecosystem.

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