ESM202Lecture03(eutrophication)_2008

ESM202Lecture03(eutrophication)_2008 - Eutrophication...

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Unformatted text preview: Eutrophication Eutrophication nutrient enrichment of waters Major nutrients - phosphorus and nitrogen Consequences - increased plant growth- decreased water quality Eutrophication of lakes, reservoirs and rivers ranks as one of the most widespread environmental problems. Eutrophication can have significant negative ecological, health, social and economic impacts on use of a primary and finite resource, water. Decreased water quality Algal blooms Decreased transparency DOC and chlorination disinfection products Toxic cyanobacteria and dinoflagellate Growth of aquatic plants Anoxia Effects of Eutrophication Source: Issues in Ecology #2 (1998) Laguna de Bay, Philippines US East Coast Source: Issues in Ecology #2 (1998) Decreased water quality Elevated nitrate concentrations Species changes Increased incidence of water-related diseases Positive features of eutrophication- increased fish yield- increased plant production and nutrient reuse Indicators of eutrophication Secchi disk transparency Chlorophyll concentration Phosphorus concentrations Nitrogen concentrations Effects of Eutrophication Source: Issues in Ecology #2 (1998) Source: Issues in Ecology #2 (1998)...
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This note was uploaded on 08/06/2008 for the course ESM 202 taught by Professor Keller during the Winter '08 term at UCSB.

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ESM202Lecture03(eutrophication)_2008 - Eutrophication...

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