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Simulating Gene Flow from Ocean Flow? James Watson, UCSB.

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Presentation on theme: "Simulating Gene Flow from Ocean Flow? James Watson, UCSB."— Presentation transcript:

1 Simulating Gene Flow from Ocean Flow? James Watson, UCSB

2 What does F3 give us... 1.) The abundance of adults at a place at a time 2.) The migration of individuals between populations

3 We can use this.... 1.) Increase book keeping - record age, sex and genetic makeup of all fish - larvae and adults - For the geographers - Categorical data 2.) Investigate the propagation of categorical data through the system by ocean currents

4 Genetic discontinuity What can we learn...

5 A Basic evolutionary concept... 1.) Divergence (geographic isolation, genetic drift) 2.) Convergence (migration, mutation)... We’re testing Genetic Structure driven by ocean currents

6 A good question to ask... 1.) Is there any structure in the Southern California Bight

7 Fst Fixation index of the subpopulation compared to the total population (a measure of variance) = Fst for the Southern California Bight 0.00022 =

8 1.) If structure - where are the DISCONTINUITIES 2.) The evolution of selective traits 3.) Species Ranges Other good questions to ask...


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