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Eutrophication Botty Dimanov Hristo Dimitrov Yana Staneva Boris Zhikov Section 10/5
Eutrophication: Defined <ul><li>Eutrophication  - enhancement of an aquatic environment with extremely high level of nutri...
Consequences <ul><li>Excess of nutrients => accelerates growth of plankton </li></ul><ul><li>Phytoplankton + Zooplankton =...
The Process Itself http://upload.wikimedia.org/wikipedia/commons/thumb/d/dd/Scheme_eutrophication-en.svg/800px-Scheme_eutr...
Impact on people <ul><li>Economic </li></ul><ul><ul><li>Tourism income decreases </li></ul></ul><ul><ul><li>Fishing is abo...
Impact on ecosystems <ul><li>Decrease of species diversity </li></ul><ul><li>Emigration of aquatic species </li></ul><ul><...
Prevention of process <ul><li>Fertilizers’ usage </li></ul><ul><li>should be limited </li></ul><ul><li>Decrease amounts of...
Prevention of outcomes <ul><li>Restoration of wetlands and buffer zones </li></ul><ul><li>Reduction of density of coastal ...
Example 1 <ul><li>Lake Erie </li></ul><ul><li>Borders Michigan, Ohio and Canada </li></ul><ul><li>1950s </li></ul><ul><li>...
Example 2 <ul><li>Baltic Sea </li></ul><ul><ul><li>Input of nutrient </li></ul></ul><ul><ul><ul><li>sewage treatment plant...
Works Cited <ul><li>Campbell, Neil, and Jane Reece.  Biology . San Francisco: Pearson, 2008.  </li></ul><ul><li>Cloern, Ja...
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  1. 1. Eutrophication Botty Dimanov Hristo Dimitrov Yana Staneva Boris Zhikov Section 10/5
  2. 2. Eutrophication: Defined <ul><li>Eutrophication - enhancement of an aquatic environment with extremely high level of nutrients </li></ul><ul><li>Anthropogenic eutrophication – eutrophication, caused by human beings </li></ul><ul><li> [Campbell] </li></ul>http://www.macalester.edu/environmentalstudies/threerivers/studentprojects/ENVI_133_Spr_08/Phosphorus/eutrophication.gif
  3. 3. Consequences <ul><li>Excess of nutrients => accelerates growth of plankton </li></ul><ul><li>Phytoplankton + Zooplankton => Algal Bloom [“Eutrophication”] </li></ul><ul><li>O 2 decreases + waste + no sunlight => intoxication of inhabitants [Cloern] </li></ul>
  4. 4. The Process Itself http://upload.wikimedia.org/wikipedia/commons/thumb/d/dd/Scheme_eutrophication-en.svg/800px-Scheme_eutrophication-en.svg.png
  5. 5. Impact on people <ul><li>Economic </li></ul><ul><ul><li>Tourism income decreases </li></ul></ul><ul><ul><li>Fishing is abolished [Cloern] </li></ul></ul><ul><li>Health </li></ul><ul><ul><li>Damaged sea-food may cause illnesses </li></ul></ul><ul><ul><li>Dangerous for humans due to toxic substances </li></ul></ul><ul><ul><li>May cause neurological disorders [Cloern] </li></ul></ul>
  6. 6. Impact on ecosystems <ul><li>Decrease of species diversity </li></ul><ul><li>Emigration of aquatic species </li></ul><ul><li>Toxic chemicals are produced [Cloern] </li></ul><ul><li>Combustion of fuels => N oxides </li></ul><ul><li>Fertilizers => NH 3 </li></ul><ul><li>Wind </li></ul>http://www.eoearth.org/images/1/12/Sea_of_Azov_eutrophication.jpg
  7. 7. Prevention of process <ul><li>Fertilizers’ usage </li></ul><ul><li>should be limited </li></ul><ul><li>Decrease amounts of Nitrogen in fertilizers [Cloern] </li></ul><ul><li>Increase efficiency of N/P removers </li></ul><ul><li>Imply developed technologies </li></ul><ul><li>for ferilizers’ production </li></ul><ul><li>[“Eutrophication”] </li></ul>http://www.minnehahacreek.org/images/fertilizer_002.jpg
  8. 8. Prevention of outcomes <ul><li>Restoration of wetlands and buffer zones </li></ul><ul><li>Reduction of density of coastal inhabitants </li></ul><ul><li>Reduction of Nitrogen emissions in other areas as well </li></ul><ul><li>Sewage treatment </li></ul>http://www.sawater.com.au/NR/rdonlyres/35604970-F730-44C8-960B-1E38AAACBE77/441/image003.gif
  9. 9. Example 1 <ul><li>Lake Erie </li></ul><ul><li>Borders Michigan, Ohio and Canada </li></ul><ul><li>1950s </li></ul><ul><li>Phosphorus based detergents from local companies </li></ul><ul><li>1972- Great Lakes Water Quality Agreement [Wright] </li></ul>http://www.wkyc.com/weblog/weather/uploaded_images/Lake-Erie-715951.jpg
  10. 10. Example 2 <ul><li>Baltic Sea </li></ul><ul><ul><li>Input of nutrient </li></ul></ul><ul><ul><ul><li>sewage treatment plants and industries </li></ul></ul></ul><ul><ul><ul><li>atmospheric deposition </li></ul></ul></ul><ul><ul><ul><li>agriculture [“FINAL…”] </li></ul></ul></ul><ul><li>Outcomes </li></ul><ul><ul><li>Inability to see through water [“Campbell”] </li></ul></ul><ul><ul><li>Toxic algae [“Eutrophication”] </li></ul></ul><ul><ul><li>Large mats of algae washed ashore [“FINAL”] </li></ul></ul>http://www.helcom.fi/environment2/nature/en_GB/nature/_files/79382152008761702/default/Baltic%20Sea_topo_small.jpg
  11. 11. Works Cited <ul><li>Campbell, Neil, and Jane Reece. Biology . San Francisco: Pearson, 2008. </li></ul><ul><li>Cloern, James. &quot;Eutrophicartion - Encyclopedia of Earth&quot;. Encyclopedia of Earth. June 9, 2010 <http://www.eoearth.org/article/Eutrophication>. </li></ul><ul><li>&quot;Eutrophication&quot;. Fubra Limited. June 10, 2010 <http://www.water-pollution.org.uk/eutrophication.html>. </li></ul><ul><li>“ FINAL Eutrophication”. Helsinki Commission. June 10, 2010. </li></ul><ul><li><http://helcom.navigo.fi/stc/files/BSAP/FINAL%20Eutrophication.pdf> </li></ul><ul><li>Wright, Ian. &quot;Untitle Document&quot;. June 10, 2010 <http://drake.marin.k12.ca.us/stuwork/rockwater/Eutrophication/examplespage.html>. </li></ul>
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