Date of Award


Degree Name

Master of Arts


Biological Sciences

First Advisor

Dr. Clarence J. Goodnight

Second Advisor

Dr. Joseph Engemann

Third Advisor

Dr. Leo Vander Beek

Access Setting

Masters Thesis-Open Access


The diversity index is an established method of measuring water quality. In this study various diversity indices are evaluated for their use in a rapid, accurate, and cost effective biological monitoring program. The study investigated five diversity indices: Approximate, Brillouin's, Shannon's, Simpson's and the Sequential Comparison Index. The diversity indices were tested for accuracy and sensitivity on actual on actual macroinvertebrate samples and simulated data.

The Simposon's Index was found to provide the most accuracy and sensitivity for the indices tested. The importance of considering the evenness element of diversity indices was also supported by the study.

Included in

Biology Commons