CaBA Lancaster 06 Caitlin Pearson Yorkshire Dales Rivers Trust
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Wet and Dry Weather Walkover Surveys - working with volunteers to capture information on habitat quality and pollution sources and pathways.
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CaBA Lancaster 06 Caitlin Pearson Yorkshire Dales Rivers Trust
- 1. Caitlin Pearson Project Officer caitlin.pearson@yorkshiredalesriverstrust.com www.yorkshiredalesriverstrust.com Dry and wet weather walkovers What about water chemistry?
- 2. Issues Sediment sources: Bank erosion, Bank poaching, Stock crossings, Drainage ditches Fish passage: Weirs, Culverts Rural pollution: Manure spreading, Manure heap, Drainage pipes, Algae Channel modifications Invasive non- native species
- 3. Walkover surveys Channel characteristics Issues Severity Land use Photographs
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- 8. Walkover survey results 20 volunteers ~ 45 km of river covered > 300 issues identified
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- 13. Spot checks every 100 strides Use an RHS approach to % cover 0 %, < 33 %, > 33 %, > 66 % Feedback Good results Positive volunteers Some subjectivity Access difficulties Hard to summarise at field scale
- 14. • Was I picking up more/less issues than everybody else? • Was my severity score consistently bias? • Did I record anything irrelevant? • Were my photos useful? Giving Feedback
- 15. Runoff Sources of sediment Pathways of sediment delivery Needs to be very wet! Quick response local volunteers
- 16. SCIMAP
- 17. Wet weather survey results
- 18. Wet weather Surveys • Is the pathway where the model says it is? • Is it a stream, a drainage ditch or an overland flow? • Is it carrying a lot of sediment? • How fast is the flow? • Is water running off roads and tracks? • Are pipes bringing in sediment? • Where is water pooling? • What is the land use and riparian margin? • Are there any landscape features that hold • sediment/water?
- 23. • River Ure in Wensleydale • Anecdotal evidence of declining quali • Lower invertebrate abundance • Algal blooms • Fish kills • EA data hasn’t picked up a problem What’s happening? Water Quality monitoring
- 24. • Landscape scale • Partnership project • Focus on community involveme • Sharing memories of the river • Understanding dairy industry • Water friendly farming Water Quality monitoring YorPast UreFuture
- 25. Water Quality monitoring Palintest - 10 kits Nitrate, Phosphate, Ammonia £3 per test Reproducibility? How often? What conditions? How many locations? How good is dip test data?