23- 



y 

 14 



13 



12 

 II 

 10 

 9 

 8 

 7 

 6 

 5 

 4 

 3 

 2 



A 



N = 44 

 APRIL 1975 



5 10 15 20 25 30 



LENGTH, CM 



13- 



12- 

 I I- 

 10- 

 9- 

 8- 

 7- 

 6- 

 5- 

 4- 

 3 • 

 2- 

 I - 



N = 265 



Jl 



/ 



MAY 1975 

 M MALE 



| FEMALE 



] NON-SPAWNER 



JH 



^_A 



10 15 20 25 30 35 



LENGTH. CM 



N=6I6 



JUNE 1975 



Ul 



J 



J 



5 10 15 20 25 30 



LENGTH , CM 



UJ 



o 



z: 

 w 



01 



a: 



O 



o 

 o 



13 



N=348 



JULY 1975 





12 









1 1 









10 









9 





OJ 







UJ 











£ 8 





'-' 







LU 



- 









K 7 



at ' 











3 











° 6 



- 









O 











55 5 



J 





— r 







4 



- 









3 



■ 



-i 







2 



_ 









1 



I 



- 





1 



n 





J^ 



n , 





5 10 15 20 25 30 



35 







LENGTH, CM 







4 



3 ■ 



N = 469 



H-r 1 



AUGUST 1975 



u 



Xn 



1 rfl 



10 



20 25 30 

 LENGTH ,CM 



35 40 



45 



SEPT. 1975 



10 15 20 25 30 35 40 



LENGTH, CM 



Figure 7. — Continued. 



25 



