Identification of common benthic diatoms in rivers

This AIDGAP field guide includes illustrated identification keys to the genera of diatoms found in benthic habitats in rivers in the British Isles, along with guides to the identification of the most common species within larger genera. Diatom identification is challenging, but with practice it becomes easier to recognise the main characters. Notes on sampling and laboratory preparation are also provided, along with comments on the ecology and environmental preferences for many of the taxa described.