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Ecology of free-living Symbiodinium

Discover the diversity and viability of free-living Symbiodinium in marine sediments and water columns, and their utilization by invertebrates. Explore research findings and future collaborations at the University of Hawai`i at Hilo's Marine Science Department.

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Ecology of free-living Symbiodinium

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  1. Presentation Index: Research at UH-Hilo - Background - Hypotheses - Results - Extension - Collaboration - Future Ecology of free-living Symbiodinium Misaki Takabayashi, PhD Lisa Adams (Master’s Candidate) Marine Science Department University of Hawai`i at Hilo

  2. Presentation Index: Research at UH-Hilo - Background - Hypotheses - Results - Extension - Collaboration - Future Research at UH-Hilo Photographs by John Oshima, UHH Graphics

  3. Presentation Index: Research at UH-Hilo - Background - Hypotheses - Results - Extension - Collaboration - Future Research at UH-Hilo • Facilities and equipment improvements with EPSCoR (NSF) other funds since 2002

  4. Presentation Index: Research at UH-Hilo - Background - Hypotheses - Results - Extension - Collaboration - Future Research at UH-Hilo • Master’s program: Tropical Conservation Biology and Environmental Sciences Lisa Adams Sea Grant Graduate Fellow

  5. Presentation Index: Research at UH-Hilo- Background - Hypotheses - Results - Extension - Collaboration - Future Ecology of Free-living Symbiodinium

  6. Presentation Index: Research at UH-Hilo- Background - Hypotheses - Results - Extension - Collaboration - Future 85% of symbiotic invertebrates must acquire Symbiodinium from the environment

  7. Presentation Index: Research at UH-Hilo- Background - Hypotheses - Results - Extension - Collaboration - Future Free-living “Symbiodinium” Sediment Water column Released from corals Fish Feces

  8. Presentation Index: Research at UH-Hilo- Background - Hypotheses - Results - Extension - Collaboration - Future • Are free-living Symbiodinium present in water column and marine sediments? • What is the diversity of Symbiodinium in these populations? • Are these populations viable, accessible, and utilized by asymbiotic invertebrates?

  9. Presentation Index: Research at UH-Hilo- Background - Hypotheses - Results - Extension - Collaboration - Future • Are free-living Symbiodinium present in water column and marine sediments? • Yes • Coffroth et al. 2006 (sediment Florida Keys) • Manning and Gates in review (Hawaii)

  10. Presentation Index: Research at UH-Hilo- Background - Hypotheses - Results - Extension - Collaboration - Future 2. What is the diversity of Symbiodinium in these populations? In Progress with collaborators…

  11. Presentation Index: Research at UH-Hilo- Background - Hypotheses - Results - Extension - Collaboration - Future  MHI  Okinawa  NWHI  Australia Florida 2. What is the diversity of Symbiodinium in these populations?

  12. Presentation Index: Research at UH-Hilo- Background - Hypotheses - Results - Extension - Collaboration - Future 3. Are these populations viable, accessible, and utilized by asymbiotic invertebrates? • Needed asymbiotic coral larvae • All Hawaiian corals have zooxanthellate larvae

  13. Presentation Index: Research at UH-Hilo- Background - Hypotheses - Results - Extension - Collaboration - Future But Okinawa has asymbiotic coral larvae! Univ. of Ryukyus, Okinawa COE Summer Program NSF East Asia Pacific Summer Institute Graduate Fellowship for Lisa Adams

  14. Presentation Index: Research at UH-Hilo- Background - Hypotheses - Results - Extension - Collaboration - Future Preferential Uptake of Symbiodinium from Sediment and Water Column Asymbiotic larvae of Acropora monticulosa

  15. Presentation Index: Research at UH-Hilo- Background - Hypotheses - Results - Extension - Collaboration - Future Larvae infected with Symbiodinium earlier and in greater proportionsin sediment containing treatments than SW only

  16. Presentation Index: Research at UH-Hilo- Background - Hypotheses - Results - Extension - Collaboration - Future Symbiodinium density higherin sediment containing treatments than SW only

  17. Presentation Index: Research at UH-Hilo- Background - Hypotheses - Results - Extension - Collaboration - Future 3. Are these populations viable, accessible, and utilized by asymbiotic invertebrates? Conclusions: • Symbiodinium in both SW and sediment are viable. • Symbiodinium in sediment infect more A. monticulosa larvae and earlier than those in water column. • Adams, Cumbo, Takabayashi in prep.

  18. Presentation Index: Research at UH-Hilo- Background - Hypotheses - Results - Extension - Collaboration - Future Ocean Day, HawaiiPacific Aquaculture and Coastal Resources Center Hawaii Tribune Herald front page April 29th, 2007 Image by Cody Chapin

  19. Presentation Index: Research at UH-Hilo- Background - Hypotheses - Results - Extension - Collaboration - Future Student Training

  20. Presentation Index: Research at UH-Hilo- Background - Hypotheses - Results -Extension - Collaboration - Future Collaborations • Drs. Ruth Gates and Xavier Pichon (Edwin Pauley Workshop, HIMB) • Dr. Selina Ward (University of Queensland) • University of the Ryukyus (COE Summer Prog)

  21. Presentation Index: Research at UH-Hilo- Background - Hypotheses - Results -Extension - Collaboration - Future Future • Genotypic diversity analyses • Quantification of genotypes • >2 papers published • Lisa Adams’ Master’s degree • Ocean Day, Hawaii 2008

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