simulating gene flow from ocean flow? james watson, ucsb

Simulating Gene Flow from Ocean

Flow?

James Watson, UCSB

What does F3 give us...

1.) The abundance of adults at a place at a time

2.) The migration of individuals between populations -121.5 -121 -120.5 -120 -119.5 -119 -118.5

33.5

34

34.5

35

35.5

36

Biomass for Optimal Yield Case

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

Gen

etic

disco

ntin

uity

What can we learn...

A Basic evolutionary concept...

1.) Divergence (geographic isolation, genetic drift)

2.) Convergence (migration, mutation)

...We’re testing Genetic Structure driven by ocean currents

A good question to ask...

1.) Is there any structure in the Southern California Bight

Fst Fixation index of the subpopulation compared to the total population (a measure of variance)

=

Fst for the Southern California Bight

0.00022=

1.) If structure - where are the DISCONTINUITIES

2.) The evolution of selective traits

3.) Species Ranges

Other good questions to ask...