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GCE Applied Science
Supports: OCR Unit 14 and AQA Unit 16
Students learn how to sample freshwater invertebrates, and how to obtain scores for the Trent biotic index.
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The Trent biotic index. STUDY SHEET
Freshwater invertebrates are used to get scores which may be used to compare water quality at different points in a stream or river.
Last Updated Thu, 17 July 2008