6 



"S 4 

 il 



E 



i 2 



3 i 



1 1 



'C. 







West Twin Lake 



J 



D Expected 

 ■ Observed 



Rainbow Hybrid Index 



JB 







Figure 4. Observed and expected random distributions of rainbow liybrid index scores in the sample 

 from West Twin Lake. Hybrid index is the number of diagnostic loci out of six at which an individual 

 possessed PINE fragments characteristic of rainbow trout. 



