Water Quality
Park rangers can tell how clean rivers and ponds are by studying the creatures that live in the water. They count macroinvertebrates - animals with no backbones - that are large enough to see without a microscope or other tool. Snails, crayfish, and most insects are macroinvertebrates.
To use the WebRangers site you must have:
- The Macromedia Flash Player 8 or higher (click below to install)
- A JavaScript enabled browser
- Related Links
- Water Resources
- http://www.nature.nps.gov/water/
- Water Quality at Glen Canyon NRA
- http://www.nps.gov/glca/naturescience/waterquality.htm
- Rocky Mountain NP Water Quality
- http://www.nps.gov/romo/naturescience/waterquality.htm
- Catoctin Mountain Park
- http://www.nps.gov/cato/pphtml/subenvironmentalfactors22.html
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