Uh-oh! Fertilizer N & P Fertilizer N & P.

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Presentation transcript:

Uh-oh!

Fertilizer N & P

Fertilizer N & P

Fertilizer N & P

Fertilizer N & P and ground water

Fertilizer N & P

Fertilizer N & P

Fertilizer N & P

Fertilizer N & P

Growth, Death, Bacteria break down, No more Oxygen, Fish die off. Fertilizer N & P

“Darn you extra phosphorus and nitrogen” “Darn you.”

How does excess nitrogen and phosphorus enter an aquatic system? What type of effects can it have if added in excess? Copyright © 2010 Ryan P. Murphy

Eutrophication. - Copyright © 2010 Ryan P. Murphy

Aquatic plants use Phosphorus and Nitrogen and grow out of control. and algae (Protists) Copyright © 2010 Ryan P. Murphy

and Protists Plants then overpopulate and die. Copyright © 2010 Ryan P. Murphy

Bacteria break down dead plants and use oxygen in water (respiration). Copyright © 2010 Ryan P. Murphy

C6H12O6 + 6O2 = Released energy + 6CO2 + 6H2O. Bacteria break down dead plants and use oxygen in water (respiration). C6H12O6 + 6O2 = Released energy + 6CO2 + 6H2O. Copyright © 2010 Ryan P. Murphy

C6H12O6 + 6O2 = Released energy + 6CO2 + 6H2O. Bacteria break down dead plants and use oxygen in water (respiration). C6H12O6 + 6O2 = Released energy + 6CO2 + 6H2O. Copyright © 2010 Ryan P. Murphy

C6H12O6 + 6O2 = Released energy + 6CO2 + 6H2O. Bacteria break down dead plants and use oxygen in water (respiration). C6H12O6 + 6O2 = Released energy + 6CO2 + 6H2O. Copyright © 2010 Ryan P. Murphy

C6H12O6 + 6O2 = Released energy + 6CO2 + 6H2O. Bacteria break down dead plants and use oxygen in water (respiration). C6H12O6 + 6O2 = Released energy + 6CO2 + 6H2O. Copyright © 2010 Ryan P. Murphy

C6H12O6 + 6O2 = Released energy + 6CO2 + 6H2O. Bacteria break down dead plants and use oxygen in water (respiration). C6H12O6 + 6O2 = Released energy + 6CO2 + 6H2O. Copyright © 2010 Ryan P. Murphy

C6H12O6 + 6O2 = Released energy + 6CO2 + 6H2O. Bacteria break down dead plants and use oxygen in water (respiration). C6H12O6 + 6O2 = Released energy + 6CO2 + 6H2O. Bacteria uses Oxygen Copyright © 2010 Ryan P. Murphy

C6H12O6 + 6O2 = Released energy + 6CO2 + 6H2O. Bacteria break down dead plants and use oxygen in water (respiration). C6H12O6 + 6O2 = Released energy + 6CO2 + 6H2O. Bacteria uses Oxygen Releases Carbon Dioxide Copyright © 2010 Ryan P. Murphy

No oxygen left for fish / other aquatic life and they die. Copyright © 2010 Ryan P. Murphy

No oxygen left for fish / other aquatic life and they die. (Anoxia) Anoxia: The total depletion in the level of oxygen, an extreme form of hypoxia or "low oxygen" Copyright © 2010 Ryan P. Murphy

No oxygen left for fish / other aquatic life and they die. (Anoxia) Copyright © 2010 Ryan P. Murphy

No oxygen left for fish / other aquatic life and they die. (Anoxia) Copyright © 2010 Ryan P. Murphy

Eutrophication https://www.youtube.com/watch?v=6LAT1gLMPu4 HW Question

Which side was given added nutrients Which side was given added nutrients (N and P) in this water quality study? A B Copyright © 2010 Ryan P. Murphy

A B No added nutrients Added N and P nutrients Nutrients (N, P) Copyright © 2010 Ryan P. Murphy

A B No added nutrients Added N and P nutrients Nutrients (N, P) Learn more about eutrophication at… http://www.unep.or.jp/ietc/publications/short_series/lakereservoirs-3/3.asp Copyright © 2010 Ryan P. Murphy