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          Interpreting Your Results

          Now that you have collected your bugs, it's time to determine the health of your stream. There are calculations that we need to do to determine the health of the stream. We call these the indices.

          • % Worms
          • % Midges
          • % Sowbugs
          • # of Taxonomic Groups
          • % Snails
          • % Dominant Group
          • % Mayflies, Stoneflies and Caddisflies
          • % Diptera
          • % Insects
          • Hilsenhoff Biotic Index

           We have the following resources to help calculate the distribution and to determine what the results of these calculations mean:

          Are you inspired to become a leader for the environment? Discover different ways you can take action in your community and support a healthy watershed.