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Trustees meeting 2013
Trustees meeting 2013
Trustees meeting 2013
Trustees meeting 2013
Trustees meeting 2013
Trustees meeting 2013
Trustees meeting 2013
Trustees meeting 2013
Trustees meeting 2013
Trustees meeting 2013
Trustees meeting 2013
Trustees meeting 2013
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Trustees meeting 2013

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Climate change impacts on fish presentation given to the UMass Board of Trustees. Contains topical information on climate change impacts on reef fishes and preliminary data.

Climate change impacts on fish presentation given to the UMass Board of Trustees. Contains topical information on climate change impacts on reef fishes and preliminary data.

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  • 1. Climate change impacts on fish Eric Wilcox Freeburg, Doctoral Candidate Department of Environmental, Earth and Ocean Sciences NSF-CRI-OA-1220480 PI: Dr. Robyn HanniganEric Wilcox Freeburg | eric.freeburg001@umb.edu February 26, 2013
  • 2. The issue: ocean acidification▸ CO2 increase in the atmosphere leads to lower ocean pH▸ Low pH is caustic to many minerals▸ Ocean acidification appears to impacting corals and shelled organisms, but what about soft bodied organisms like fish? Hall-Spencer et al. 2008. Volcanic carbon dioxide vents show ecosystem effects of ocean acidification. Nature, 454(7200), 96-99Eric Wilcox Freeburg | eric.freeburg001@umb.edu February 26, 2013
  • 3. Why is OA important to fish? A. Whitfield, T.T., Riley, B.B., Chiang, M.-Y., and Phillips, B., 2002, Development of the zebrafish inner ear: Developmental Dynamics, v. 223, p. 427-458. B. Fekete, D.M., 2003, Developmental biology. Rocks that roll zebrafish: Science, v. 302, p. 241-2.Eric Wilcox Freeburg | eric.freeburg001@umb.edu February 26, 2013
  • 4. NASA papers Gravitational force affects otolith development and function Anken et al. 1998Eric Wilcox Freeburg | eric.freeburg001@umb.edu February 26, 2013
  • 5. Checkley et al. 2009. Elevated CO2 enhances otolith growth in young fish. Science, 324(5935), 1683.Eric Wilcox Freeburg | eric.freeburg001@umb.edu February 26, 2013
  • 6. Ocean Acidification Apparatus ▸ 20 Individually controlled and replicated tanks ▸ Precise control (within ±0.01 pH units) ▸ Hobbyist base system, so inexpensive ▸ Methodology paper in preparation Eric Wilcox Freeburg | eric.freeburg001@umb.edu February 26, 2013
  • 7. Fish Dissections 200 µm 1 mm Eric Wilcox Freeburg | eric.freeburg001@umb.edu February 26, 2013
  • 8. Comparisons..Zebrafish NemoEric Wilcox Freeburg | eric.freeburg001@umb.edu February 26, 2013
  • 9. Texture analysis▸ Hypothesis – tissue interaction with bones ▸ Titanium replacement bones – roughness characteristics key to new tissue growth ▸ Is the otolith roughness changed under OA? Does that impact nerve-bone interactions?Eric Wilcox Freeburg | eric.freeburg001@umb.edu February 26, 2013
  • 10. Control (8.0) Low (7.3)Eric Wilcox Freeburg | eric.freeburg001@umb.edu February 26, 2013
  • 11. Texture analysis tools Eric Wilcox Freeburg | eric.freeburg001@umb.edu February 26, 2013
  • 12. Thank you!▸ National Science Foundation▸ Dr. Robyn Hannigan, EEOS, UMB▸ Dr. William Robinson, EEOS, UMB▸ Dr. Andrew Rhyne, Roger Williams University▸ Dr. Michael Tlusty, New England AquariumEric Wilcox Freeburg | eric.freeburg001@umb.edu February 26, 2013

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