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Squam Contaminants

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Squam Contaminants

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Presentation Transcript

  1. Squam Contaminants Photo: Lee Grenier

  2. During Motivation and sample overview

  3. Sample overview

  4. From Hobson et al. 1997:

  5. Sulfur and carbon stable isotopes for Squam loons and reference species

  6. Comparisons- PCBs

  7. Comparisons- PCBs (continued)

  8. Comparisons- PBDEs

  9. Conclusion/Next Steps • Local diet • Levels of concern • Accumulating data: • lines of evidence (analysis, research, modeling) • expanded stable isotope testing • serology, health testing for “subtle” effects

  10. Acknowledgements • Squam Lake Loon Initiative funders • Collaborators: • USFWS New England Field Office (Drew Major) • BioDiversity Research Institute (Wing Goodale) • ACLP (Nina Schoch) • SUNY Wadsworth (K. Kannan) • Tufts- CSVM – (Mark Pokras, Michelle Kneeland) • LPC field staff (T. Grade)

  11. Carbon and Nitrogen Stable Isotopes in Loon Eggs – Squam and Reference Lakes