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Water Quality

Water Quality. How Do We Measure Water Quality????. Water Quality. Chemical Characteristics Biological Characteristics Physical Characteristics. Chemical Characteristics. Dissolved Oxygen Nitrogen Phosphorous pH Alkalinity. Dissolved Oxygen. Dissolved Oxygen. Fish Kill. pH.

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Water Quality

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  1. Water Quality How Do We Measure Water Quality????

  2. Water Quality • Chemical Characteristics • Biological Characteristics • Physical Characteristics

  3. Chemical Characteristics • Dissolved Oxygen • Nitrogen • Phosphorous • pH • Alkalinity

  4. Dissolved Oxygen

  5. Dissolved Oxygen

  6. Fish Kill

  7. pH

  8. Acid Rain

  9. Alkalinity

  10. Nitrogen and Phosphorous

  11. Eutrophication

  12. Good Water Quality • Dissolved Oxygen: >6 ppm • pH: Neutral • Alkalinity: 100 – 200 ppm • Nitrogen and Phosphorous: <.1 ppm

  13. Biological Characteristics • Fish • Algae • Rooted Aquatic Plants • Bacteria • Benthic Macroinvertebrates

  14. Benthic MacroinvertebratesThink Small!!!!!

  15. Benthic Macroinvertebrate Sampling

  16. Stonefly Larvae

  17. Mayfly Larvae

  18. Caddisfly Larvae

  19. Benthic Macroinvertebrates as Water Quality Indicators • Mayflies • Stoneflies • Caddisflies

  20. Physical Characteristics • Temperature • Local Land Use Activities • Stream Bank Erosion • Stream Bottom • Flow

  21. Different Types of Fish Do Better in Different Water Temperatures

  22. Warm Water Fish Blue Gills

  23. Stream Bank Erosion

  24. Stream Bottom Characteristics

  25. Measuring Stream Flow

  26. Measuring Stream Flow • Width X Depth X Feet per Second = Cubic Feet per Second (cfs)

  27. Watershed ScientistsWhat Do We Do? • Take Water Quality Measurements • Sample for Macroinvertebrates • Take Water Temperature • Figure Out the Stream Flow • Look for Signs of Pollutants • What Do All of These Say About Water Quality?

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