11 



N=418 







APRIL 1976 



10 







9 



J 



3 M*LE 



8 





\ | FEMALE 



7 





3 NON-SPAWNER 



LLI 



a: ° 



r> 

 U 4 



s - 







J~ 



- 



2 



1 



/ 





5 10 15 20 25 30 35 40 

 LENGTH , CM 



13 













12 



r 





11 



N=181 



MAY 1976 



10 







9 







8 

 m 



2 7 



UJ 



q; 6 



§ 5 

 O 

 ^ 4 





P 



\ 



r 





3 









2 







L 



1 



, ./ 



lin .. 



5 10 15 20 25 30 35 

 LENGTH , CM 



10 



N=581 





JUNE 1976 



9 

 8 



: 



ft 





7 









g 6 



1 5 



O 

 ^ 3 





/ 



\ 





2 







1 









r LJ~I ™ 



10 



N=551 JULY 1976 



9 

 8 





(\ 



7 



T 



-6 



— 



T-. 





x 5 



ex. 3 



■ 







Z> 



_ 







U 4 





j- 





^3 



d-- 



2 



■ 





/ 







1 



rr, , , , , . , , , h , i-n 



10 15 20 25 30 35 40 

 LENGTH ,CM 



12 



11 



10 



9 



8 



7 



UJ 



Z 6 



UJ 



I 5 



O 



X! 3 

 2 



1 



■ 















. 







N=387 



AUGUST 1976 





r 



lr 











ji 







,J 







: r 



i 





i 





■ i mi 



5 10 15 20 25 30 35 40 45 

 LENGTH ,CM 



SEPTEMBER 1976 



10 15 20 25 30 35 40 

 LENGTH ,CM 



10 15 20 25 30 35 40 

 LENGTH , CM 



Figure 7. — Continued. 



26 



