9. Uh-oh!

11. Fertilizer
N & P

12. Fertilizer
N & P

13. Fertilizer
N & P

14. Fertilizer
N & P
and ground water

15. Fertilizer
N & P

16. Fertilizer
N & P

17. Fertilizer
N & P

18. Fertilizer
N & P

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

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

22. How does excess nitrogen and phosphorus enter an aquatic system?
What type of effects can it have if added in excess?
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23. Eutrophication. -
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24. Aquatic plants use Phosphorus and Nitrogen and grow out of control.
and algae (Protists)
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29. and Protists Plants then overpopulate and die.
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30. Bacteria break down dead plants and use oxygen in water (respiration).
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31. 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

32. 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

33. 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

34. 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

35. 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

36. 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

37. 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

38. No oxygen left for fish / other aquatic life and they die.
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39. 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

40. No oxygen left for fish / other aquatic life and they die. (Anoxia)
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41. No oxygen left for fish / other aquatic life and they die. (Anoxia)
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42. Eutrophication
HW Question

43. Which side was given added nutrients
Which side was given added nutrients (N and P) in this water quality study? A B
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44. A B No added nutrients Added N and P nutrients Nutrients (N, P)
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45. A B No added nutrients Added N and P nutrients Nutrients (N, P)
Learn more about eutrophication at…
Copyright © 2010 Ryan P. Murphy