5 10 15 20 25 30 5 10 15 20 25 

 April May 



ID**' 



^ To 1'5 2'0 25 30 i I'O 15 2 25 

 April May 



5.5 

 5.0 

 "^.5 



3.5 

 3.0 

 2.5 

 2.0 

 1.5 

 1.0 



.5 



-UiR? 



?i I I » I I I ' I I 

 10 15 20 25 30 5 10 15 20 25 



April May 



Figure A3^ 



Sex ratio ( males : females ) of mature sauger captured 

 while electrof ishing the Yellowstone River near 

 Miles City during the spring of 1976, 1979 and 

 1980. 



148 



