Water quality and bugs
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Presentation by Craig Macadam, of Buglife, to the World Water Day workshop organised by University of Dundee on 22 March 2010.
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Water quality and bugs
- 1. Reco Craig Macadam Conservation Officer (Scotland) World Water Day 2010
- 2. Why is water quality important?
- 3. Why is water quality important?
- 9. © SNH
- 10. © Craig Macadam
- 11. What’s the future for water quality monitoring?
- 12. Cased caddis Caseless caddis Mayfly Stonefly The BMWP Score Image © Cyril Bennett
- 13. © Craig Macadam
- 14. Target groups Image © Cyril Bennett Cased caddis Caseless caddis Stoneflies Heptageniidae Baetidae Ephemeridae Ephemerellidae
- 15. © Ayrshire Rivers Trust
- 17. What’s the future for water quality monitoring? Non-native species
- 18. What’s the future for water quality monitoring? Climate change
- 19. Climate space
- 20. Climate space
Editor's Notes
- The BMWP scoring table – scores at family level So if in our sample we get a flat bodied mayfly (Heptageniidae), which is very sensitive to pollution, we score 10. A Yellow Sally stonefly (Perlodidae) is also very sensitive and therefore scores a further 10. As does a Grannom cased caddis (Brachycentridae). Whereas a Sandfly caseless caddis (Rhyacaphilidae) is slightly less sensitive to pollution and scores 7. We therefore have a score of 37. All of the other families found in the sample are then added up to give an overall BMWP score. On an unpolluted southern chalkstream this can be as high as 300 but upland rivers tend to be (quite normally) lower.
- Riverfly workshops
- Target Groups: Sensitive to pollution Easy to identify Important to anglers Normally present in good numbers