4.4 and 2.5 Water Quality and Indicator Species
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.Measuring biotic indices (diversity) and identifying indicator species, fresh water streams can be monitored for pollution....
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