Figure 14. -- Commonwealth longline fishing, 

 cruise 1, July -August. 



0.2)i2 



NO. — STATION NUMBER 

 (fid) — CATCH / 100 HOOKS 



1.0)1- 



159° 158" 157° 156° 155° 



Figure 1 5 . - -Sea Hawk longline fishing, October. 



i r 



i 1 r 



9@ « 



4 @ rN@, 



J L 



. JARVIS I 



J I L 



J L 



Figure 16. --Commonw ealth longline fishing, 

 cruise 2, October-November. 



i — r 



90 100 110 120 130 140 150 160 170 180 

 LENGTH (CM) 



Figure 17. --Yellowfin size distributions by sex 

 taken on fabric gear in the Line Islands area 

 during 1954 (data in Appendix table 17). 



YELLOWFIN CATCH COMPOSITION 



There are no apparent differences in the 

 sex ratio or size distribution between yellowfin 

 caught during 1954 and those caught in past 

 years (Murphy and Shomura 1955, fig. 11 and 

 Sh'omura and Murphy 1955, fig. 11) that would 

 help explain the decreased abundance during 

 1954 and the absence of the midsummer up- 

 swing in catch rates. As usual the males were 

 predominant in number, especially in the very 

 large fish (fig. 17). 



