This article is about a process in aquatic ecosystems. For one of the main causes, see nutrient pollution. For one of the effects, see harmful algal bloom.
Eutrophication can cause harmful algal blooms like this one in a river near Chengdu, China.
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Eutrophication is a general term describing a process in which nutrients accumulate in a body of water, resulting in an increased growth of microorganisms that may deplete the water of oxygen.[1][2] Although eutrophication is a natural process, manmade or cultural eutrophication is far more common and is a rapid process caused by a variety of polluting inputs including poorly treated sewage, industrial wastewater, and fertilizer runoff.[3] Such nutrient pollution usually causes algal blooms and bacterial growth, resulting in the depletion of dissolved oxygen in water and causing substantial environmental degradation.[4]
Approaches for prevention and reversal of eutrophication include minimizing point source pollution from sewage and agriculture as well as other nonpoint pollution sources.[1] Additionally, the introduction of bacteria and algae-inhibiting organisms such as shellfish and seaweed can also help reduce nitrogen pollution, which in turn controls the growth of cyanobacteria, the main source of harmful algae blooms.[5]
^ ab"Nutrients and Eutrophication | U.S. Geological Survey". www.usgs.gov. Retrieved February 9, 2024.
^Aczel MR (2019). "What Is the Nitrogen Cycle and Why Is It Key to Life?". Frontiers for Young Minds. 7. doi:10.3389/frym.2019.00041. hdl:10044/1/71039.
^Carpenter SR (2008). "Phosphorus control is critical to mitigating eutrophication". Proceedings of the National Academy of Sciences. 105 (32): 11039–11040. Bibcode:2008PNAS..10511039C. doi:10.1073/pnas.0806112105. PMC 2516213. PMID 18685114.
^"Eutrophication and Oyster Aquaculture in the Potomac River Estuary". NCCOS Coastal Science Website. Retrieved February 9, 2024.
Eutrophication is a general term describing a process in which nutrients accumulate in a body of water, resulting in an increased growth of microorganisms...
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ecosystems, it has the possibility to lead to over-production in the form of eutrophication, which can happen in both freshwater and saltwater environments. Humans...
or other diseases. Nitrogen pollution can cause eutrophication, especially in lakes. Eutrophication is an increase in the concentration of chemical nutrients...
along with acting as a buffer for eutrophication by uptake of phosphorus. However, with increased eutrophication of lakes along with climate change,...
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studies and research has provided much insight into processes like eutrophication, and how to deal with it. Denmark and the EU have initiated costly and...
effects on fish if it contributes to this eutrophication. Nitrogen has contributed to severe eutrophication problems in some water bodies. Since 2006...
number of down stream impacts, including nutrient pollution that causes eutrophication. In addition to causing water erosion and pollution, surface runoff...
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suspended particulate matter, and toxics), waste management, water eutrophication, nature conservation, climate change, chemical management and international...
Black Sea, the Cariaco Trench, various fjord valleys, and elsewhere. Eutrophication has likely increased the extent of anoxic zones in areas including the...
the surface. Furthermore, a significant detrimental outcome caused by eutrophication in the Mississippi River is the increased uptake of dissolved oxygen...
contamination by excessive inputs of nutrients. It is a primary cause of eutrophication of surface waters (lakes, rivers and coastal waters), in which excess...
accumulate there, disturbing the natural mineral balance. This can cause eutrophication where plant growth is accelerated by the additional material. Because...
desertification. Off-site effects include sedimentation of waterways and eutrophication of water bodies, as well as sediment-related damage to roads and houses...
relatively high heavy metal concentrations, leading to eutrophication of many coastal ecosystems. Eutrophication results from the excessive nutrient load within...
Mille Lacs Lake (/məˈlæks/ mə-LAX, also called Lake Mille Lacs or Mille Lacs) is a large but shallow lake in the U.S. state of Minnesota. It is located...
cotton which is grown with chemicals that are known to cause eutrophication. Eutrophication is a process in which fresh water sources such as lakes and...
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