Classification:
Vertebrates
Invertebrates
Herbs
Trees & Shrubs

Data Collection:
Creek Bottom
Dissolved Oxygen
Creek Depth
Creek Clean Up
Invert Sampling
Nitrates
pH
Microorganisms
Phosphates
Vert Sampling
Temp & Humidity
Turbidity

Enzymes in living organisms have an optimum pH at which they can function. Levels of pH will determine which types of organisms can survive. Many organisms will not be able to survive in the creek if the pH is to high or if the pH is too low.