122 



Fishery Bulletin 88(1), 1990 



Figure 4 



Dorsal fin shapes of Dall's porpoise 

 specimens: (a| calf (TAJ 171). (b) im- 

 mature male (TAJ IfiS), (c) mature fe- 

 male (TAJ 156), (d) mature male (TAJ 

 161). 



Figure 5 



External features of Dair,s porpoise 

 specimens plotted by age/sex class. 

 Points are mean, boxes are + ISD, ver- 

 tical bars are range, and numbers in- 

 dicate sample size. ANOVAs test for 

 developmental variation separately 

 within each sex: significance '** //< 

 0.001. " p<0.01. • /)<0.05, ns = not 

 significant. 



