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Alexis Jackson 1, Paul Barber 2 1. Yale University 2. Boston University, MBL

Genetic Connectivity of Pelagic Fishes ( Katsuwonus pelamis and Scomberomorus commerson ) across the Indo-West Pacific. Alexis Jackson 1, Paul Barber 2 1. Yale University 2. Boston University, MBL. Species of Study. Katsuwonus pelamis. Katsuwonus pelamis. Scomberomorus commerson.

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Alexis Jackson 1, Paul Barber 2 1. Yale University 2. Boston University, MBL

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  1. Genetic Connectivity of Pelagic Fishes (Katsuwonus pelamis and Scomberomorus commerson) across the Indo-West Pacific Alexis Jackson 1, Paul Barber 2 1. Yale University 2. Boston University, MBL

  2. Species of Study Katsuwonus pelamis Katsuwonus pelamis Scomberomorus commerson

  3. Scomberomorus commerson °° °° Katsuwonus pelamis

  4. Biogeography of Indo-West Pacific

  5. Regional genetic differentiation of Linckia laevigata

  6. Collection Sites

  7. Objectives 1. Investigate population structure of pelagic fishes in IWP 2. Investigate population dynamics of pelagic fish

  8. Hypotheses 1. Fishes not affected by Pleistocene 2. Limited flow to Indian and Pacific 3. K. pelamis different from Scomberomorus

  9. Methods • Sample Size: 241 • Scomberomorus commerson (76) • Katsuwonus pelamis (165) • Extraction Method: Chelex • PCR • ABI 377 • Statistical Analysis: PAUP, Arlequin

  10. K. pelamis

  11. Population Pairwise FSTs Katsuwonus pelamis

  12. Population Pairwise FSTs Katsuwonus pelamis

  13. AMOVA Analysis Katsuwonus pelamis

  14. S. commerson

  15. Population Pairwise FSTs Scomberomorus commerson

  16. AMOVA Analysis Scomberomorus commerson

  17. Molecular Diversity Indices K. pelamis

  18. Molecular Diversity Indices S. commerson

  19. Conclusions • Panmixia not a phenomenon for S. commerson in IWP • Boundaries for pelagic fish • Commercial significance

  20. Acknowledgements Many thanks to the following: • Paul Barber • Elizabeth Jones • Josh Drew • Eric Crandall • Timery DeBoer • Matthew Subia • Krystle Chavarria • Jeannie Choi • National Science Foundation and The Diversity Project

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