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

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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 Scomberomorus commerson Katsuwonus pelamis

°° Katsuwonus pelamis Scomberomorus commerson

Biogeography of Indo-West Pacific

Regional genetic differentiation of Linckia laevigata

Collection Sites

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

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

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

K. pelamis

Population Pairwise FSTs Katsuwonus pelamis

Population Pairwise FSTs Katsuwonus pelamis

AMOVA Analysis Katsuwonus pelamis

S. commerson

Population Pairwise FSTs Scomberomorus commerson

AMOVA Analysis Scomberomorus commerson

Molecular Diversity Indices K. pelamis

Molecular Diversity Indices S. commerson

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

Acknowledgements Many thanks to the following: Paul BarberPaul Barber Elizabeth JonesElizabeth Jones Josh DrewJosh Drew Eric CrandallEric Crandall Timery DeBoerTimery DeBoer Matthew SubiaMatthew Subia Krystle ChavarriaKrystle Chavarria Jeannie ChoiJeannie Choi National Science Foundation and The Diversity ProjectNational Science Foundation and The Diversity Project

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