1. http://www.life.uiuc.edu/animalbiology/105/ Name: eee105 Password: prAIRie

3. Conflict exam: Thursday May 9 sign up with Karin Nelson Final Exam Tuesday May 7 7 - 10 pm Foellinger Auditorium EEE 105 7 pm

4. Final Exam EEE 105 Coverage: Cumulative with special emphasis on untested lectures

5. Final Exam EEE 105 Coverage: Cumulative with special emphasis on untested lectures and April 10 - May 1

6. Ecology of freshwaters Lakes, rivers, and streams Limnology

7. Limnology The Lake as a Microcosm -- Steven J. Forbes

8. Limnology Lake seiches wind air pressure

9. Limnology Lake seiches wind air pressure

10. Limnology Secondary seiches hypolimnion oscillates

11. Limnology Secondary seiches hypolimnion oscillates long after epilimnion is quiet

12. Limnology Secondary seiches hypolimnion oscillates long after epilimnion is quiet

13. Limnology The secret of Lake Monsters e.g. Champ of L. Champlain

14. Limnology The secret of Lake Monsters e.g. Champ of L. Champlain

15. Limnology The killer lakes of the Cameroons The night of Aug. 21, 1986 1,700 people died in their sleep CO 2

16. Limnology The killer lakes of the Cameroons The night of Aug. 21, 1986 1,700 people died in their sleep now degassing

17. photosynthesis detritus decomposition nutrient rich sediment Limnology What limits phytoplankton blooms? a nutrient is the limiting factor e.g. phosphorous in northwoods lakes phosphorous recycled in natural lake spring fall

18. photosynthesis detritus decomposition nutrient rich sediment Limnology What limits phytoplankton blooms? a nutrient is the limiting factor e.g. phosphorous in northwoods lakes if phosphorous is added to lake: bloom bacteria O 2 depleted cyanobacteria bloom

19. Limnology Cyanobacteria Once called blue-green algae anaerobic make nitrate from N 2

20. Limnology Cyanobacteria Ancient --3 billion years first multicellular organisms stromatolites

21. Limnology Eutrophication

22. Limnology Cyanobacteria Spirulina

23. Limnology Wastewater treatment Primary sewage treatment e.g. septic tanks Removes organic solids

24. Limnology Wastewater treatment Secondary sewage treatment Trickling filter Phosphorous & nitrates released in effluent

25. Limnology Wastewater treatment Secondary sewage treatment Activated sludge system

26. Limnology Wastewater treatment Tertiary sewage treatment Removal of nutrients such as phosphate & nitrate

27. Rivers Problems: Building on flood plains

28. Rivers Problems: Building on flood plains Pollution

29. Rivers Problems: Building on flood plains Pollution

30. Rivers Problems: Building on flood plains Pollution Hudson River

31. EPA has ordered massive dredging to remove PCB sediments

32. Rivers Problems: Building on flood plains Pollution Water Depletion