Fishery Bulletin 92(1), 1994 



J 



0. 



JTw-lhTr 



- 1987 



^-TTH rTfTH^ : 



r^Vn-rr-ITln 



^TH^rrT~r-^l 



' rT^-r^-fT^l 



1980 



_□=. 



rm-vj 



rThmT> 



TTT 



1:JJlHJJ1l. 



rT-mll-r 



n,^ 



.□L 



AGE 5 . 5 



AGE 5 . 



AGE 4 . 5 

 AGE 4 . 

 AGE 3 . 5 



Figure 5 



Average annual non-dolphin-set yellowfin tuna (Thunnus albacares) 

 catchability coefficients (q in boat-days - ^) by semi-annual age group. In the 

 left panel, coefficients are summarized by age within year. In the right panel, 

 coefficients are summarized by year within age group. Annual catchability 

 coefficients are estimated as the mean of the monthly coefficients. Age re- 

 fers to the age in years at the middle of the year. 



=r£ 



^^fn-u 



-mW^ 



■j-ri~H—i 



1983 

 1982 

 1981 



1980 



JZL 



oiEt£^d 



rffl 



FT-fTM I rh : 



-■■i  '' I ' I 



AGE 5 . 5 

 AGE 5 . C 



AGE 3 . 

 AGE 2 . 5 

 AGE 2 . 

 AGE 1 . 5 

 AGE 1 . 

 AGE . 5 



Figure 6 



Average annual observed yellowfin tuna (Thunnus albacares) catchability coef- 

 ficients (<? in boat-days -1 ) by semi-annual age group. In the left panel, coeffi- 

 cients are summarized by age within year. In the right panel, coefficients are 

 summarized by year within age group. Annual catchability coefficients are es- 

 timated as the mean of the monthly coefficients. Age refers to the age in years 

 at the middle of the year. 



