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Tennessee Valley Authority — TVA Kingston Ecological Recovery Symposium 2011

18 slides from Tennessee Valley Authority's conference presentation, Oct 13, 2011

  1. Slide 1: Riparian-feeding birds at the Kingston Ash Spill

    riparian-feeding birds at the Kingston Ash Spill Jesse Morris † Elizabeth Burton † Suzy Young ‡ Amber Stojak ‡ T. Hill Henry ¶ † Restoration Services Inc.; ‡ ARCADIS U.S., Inc.; ¶ Tennessee Valley Authority Elizabeth Burton

  2. Slide 2: TVA Response to the Spill: Birds

    TVA Response to the Spill: Birds Elizabeth Burton Osprey nest Nicholas Morris

  3. Slide 3: Study Objectives

    Study Objectives  Determine whether trace elements are bioavailable to birds occupying different trophic levels/feeding ecologies  Compare observed concentrations to literature-derived values to assess potential exposure and effects to bird populations

  4. Slide 4: Conceptual Exposure Model

    Elizabeth Burton Conceptual Exposure Model Nicholas Morris

  5. Slide 5: Study Design: Collection

    Study Design: Collection

  6. Slide 6: Study Design: Processing

    Study Design: Processing Z Z . 3 gS . x ¥} OT TAMPER, oreo

  7. Slide 7: Sample Locations

    Sample Locations Osprey Sites = 10 n = 9 (2009) n = 10 (2010) Kingston Fossil Plant Heron Sites = 2 n = 10 (2009) n = 13 (2010) n = 20 (2011) Canada Geese Sites = 6 n = 5 (2009) n = 25 (2010) n = 23 (2011)

  8. Slide 8: Results

    Results  Osprey and goose eggs: Preliminary analysis of 2009 and 2010 data  Heron eggs: In depth modeling of all trace elements and biometrics for 2009 and 2010  2011 data Nicholas Morris

  9. Slide 9: Great Blue Heron Eggs

    Great Blue Heron Eggs  15 of 26 trace elements not detected Nicholas Morris  11 trace elements detected:  Barium Potassium Selenium  Calcium Sodium  Copper Strontium  Magnesium Zinc  Manganese  Mercury  No significant biometrics

  10. Slide 10: Selenium Toxicity in Birds

    Selenium Toxicity in Birds http://pubs.usgs.gov/pp/pp1655/pp1655_v1.1.pdf rom: Skorupa & Ohlendorf, 1991. Contaminants in drainage water and avian risk thresholds. Pp 345-386 In The economics and management of water and drainage in agriculture (Dinar & Ziberman, eds).

  11. Slide 11: Selenium and Hatchability

    Selenium and Hatchability  Mallard: 7.7-15 mg/kg Nicholas Morris (Adams et al. 2003; Ohlendorf 2003, 2007; Beckon et al. 2008)  Black-necked-stilt: 6-7 mg/kg or 21-31 mg/kg (USDOI 1998, Adams et al. 2003) Mike Baird  Black-crowned night heron: 16.5 mg/kg Alain Carpentier (Smith et al. 1998)  Ame

  12. Slide 12: Selenium Concentration in Eggs

    Great Blue Heron Eggs Selenium 5 -- Selenium Nicholas Morris Selenium Concentration in Eggs 4 -- (mg/kg dry mass) 3 -- 2 -- 2009 2010 2009 2010 Impacted Reference Tukey-Kramer, Impacted 2010>Reference 2009

  13. Slide 13: Selenium Concentration in Osprey Eggs

    Osprey Eggs Selenium 6 6 5 5 Selenium Concentration in (mg/kg dry mass) 4 4 Eggs 3 3 2 2 1 1 0 0 eference R eference R eference R eference R eference ite Reference Impacted S ite S ite SS ite S ite Note: Includes 2009 and 2010 data. R T-test, Site (p=0.928) Blue Heron Canada Goose Osprey Blue Heron

  14. Slide 14: Selenium Concentration in Eggs: Canada Goose

    Canada Goose Eggs Selenium 6 Selenium Concentration in Eggs 5 (mg/kg dry mass) 4 3 2 1 0 Reference Impacted Reference Site Note: Includes 2009 and 2010 data. Wilcoxon-Mann Whitney, Site (p<0.0001)

  15. Slide 15: Discussion

    Discussion Elizabeth Burton  Selenium concentrations Nicholas Morris  Heron and goose eggs: Elevated  Osprey eggs: Similar between locations  Potential causes  Difference in trophic level and feeding ecology  Time lag  Many variables

  16. Slide 16: Path Forward

    Path Forward  Analyze remaining osprey and goose data for other trace elements  Analyze 2011 data for heron and geese  Explore relationships with other studies John Harrison Elizabeth Burton Elizabeth Burton

  17. Slide 17: Additional Acknowledgements

    Additional Acknowledgements Adam Johnson Travis Walls Dr. William Hopkins Mirtha Martin U.S. Fish and Wildlife Neil Carriker Service Wes James Lori Whitehorse Transmission Crew Tennessee Wildlife Resources Agency Jacqueline Iannuzzi Gina Houck Tim Negley Carolyn Meyer Harriman Utility Board Tom Bock

  18. Slide 18: Questions?

    Questions? '

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