70 

 60 



y 50 

 < 



Ld 



o 30- 



h- 



UJ 



o 



n- 



10 



0-t 



1977. 



1981 



\ 

 \ 



/ \ / \ 



\J^978/ \ / \ \ 



'^, 197^/ \ ,./x 



^ A \ \ 



M980..^ / \\ , \ 



FEBRUARY 



MARCH 



77 78 — - 79 



\ 



\S 





80 



APRIL 



- 81 



70 



60 



H 501 



40 



o 30 



Ld 

 O 



cr 20 



Ld 



10 



1984 ^-' 

 \ 1982 



\ 

 \ 

 \ 

 \ 



1986 



1983^ 



1985' 



1983^ \ 







\^ 



\ 



\ 



\ 



0-<— r- 



FEBRUARY MARCH APRIL 



82 83 84 85 86 



Figure 5. Percentage of adult female winter Rounder in spawning condiUon by week in the NianUc River from 1977 

 through 1986. 



39 



