Climate change impacts on fish  Eric Wilcox Freeburg, Doctoral Candidate  Department of Environmental, Earth and Ocean Sci...
The issue: ocean acidification▸ CO2 increase in the atmosphere leads to lower ocean pH▸ Low pH is caustic to many minerals...
Why is OA important to fish?                                          A. Whitfield, T.T., Riley, B.B., Chiang, M.-Y., and ...
NASA papers                                                   Gravitational force affects                                 ...
Checkley et al. 2009. Elevated CO2 enhances                           otolith growth in young fish. Science, 324(5935),   ...
Ocean Acidification Apparatus        ▸ 20 Individually controlled and replicated tanks        ▸ Precise control (within ±0...
Fish Dissections        200 µm                                                       1 mm Eric Wilcox Freeburg | eric.free...
Comparisons..Zebrafish                                    NemoEric Wilcox Freeburg | eric.freeburg001@umb.edu February 26,...
Texture analysis▸ Hypothesis – tissue interaction with bones     ▸ Titanium replacement bones – roughness       characteri...
Control (8.0)                                       Low (7.3)Eric Wilcox Freeburg | eric.freeburg001@umb.edu February 26, ...
Texture analysis tools Eric Wilcox Freeburg | eric.freeburg001@umb.edu February 26, 2013
Thank you!▸ National Science Foundation▸ Dr. Robyn Hannigan, EEOS, UMB▸ Dr. William Robinson, EEOS, UMB▸ Dr. Andrew Rhyne,...
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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.

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Trustees meeting 2013

  1. 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. 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. 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. 4. NASA papers Gravitational force affects otolith development and function Anken et al. 1998Eric Wilcox Freeburg | eric.freeburg001@umb.edu February 26, 2013
  5. 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. 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. 7. Fish Dissections 200 µm 1 mm Eric Wilcox Freeburg | eric.freeburg001@umb.edu February 26, 2013
  8. 8. Comparisons..Zebrafish NemoEric Wilcox Freeburg | eric.freeburg001@umb.edu February 26, 2013
  9. 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. 10. Control (8.0) Low (7.3)Eric Wilcox Freeburg | eric.freeburg001@umb.edu February 26, 2013
  11. 11. Texture analysis tools Eric Wilcox Freeburg | eric.freeburg001@umb.edu February 26, 2013
  12. 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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