1ST QUARTER 2D QUARTER 



•3D QUARTER 



4TH QUARTER 



BAJA CALIFORNIA 



REVILLAGI6ED0 ISLANDS 



600 

 LENGTH (MM) 



600 



LENGTH (MM) 



Figure 7.--Superimposition of quarter-year length- frequency distribu- 

 tions of skipjack taken in the Baja California and Revillagigedo 

 regions of the eastern Pacific during 1954-60. Data are from Broad- 

 head and Barrett (1964). 



of the Revillagigedo and the Baja California skip- 

 jack are about the same. From 1955 to 1957 the 

 Baja California fish are generally smaller than 

 those from Revillagigedo. It seems that the dis- 

 appearance of the size differential is due to a 

 decrease in the size of the Revillagigedo fish 

 rather than to an increase in the size of Baja 

 California fish. 



Comparison of Eastern and 

 Central Pacific Length -Frequencies 



A comparison between the sizes of skipjack 

 taken in Hawaiian waters and those from the 

 eastern Pacific is also of interest. Data for var- 

 ious regions of the northern area of the eastern 

 Pacific arranged by quarters are available in 

 Broadhead and Barrett (1964). Data from both 



