1. Aquatic Indicators Text: Ted Schaffer Editor: Laurie Rosenberg Assistant Editor: Nadine Smith Illustrator: Jamie Buckwalter MUHLENBERG COLLEGE

2. Living Things as Indictors of Water Quality

3. Esherichia Coli (E. Coli) http://www.bact.wisc.edu/Bact330/lectureecoli

4. E. Coli Colonies on Agar Plate http://www.bact.wisc.edu/Bact330/lectureecoli

5. Dissolved Oxygen Testing

6. Collecting Aquatic Organisms

7. Fast running streams with cold water - high dissolved oxygen levels. Still, shallow bodies of water - low dissolved oxygen levels.

8. Larvae: Dobsonfly, Mayfly, Stonefly Illustrations by

9. Damselfly adult and larvae (with gills) http://biodidac.bio.uottawa.ca

10. Examples of Fairly Tolerant Organisms Midge Fly Larvae Scud or amphipod Illustrations by

11. AquaticEarthworm, Rat-tailed Maggot, Nematode