4.4 Indicator Species and Biotic Indices
In this activity, we will practice the use of indicator species to monitor pollution. In Switzerland I have found it very difficult to do any studies in situ to look at the use of fresh water invertebrates. Instead I use data that I have invented to teach the use of this indirect method of measuring water pollution. This activity is adapted from the Nuffield Foundation's Practical Biology. I have added a practice for...