■137- 



2.5 



S 1.5 

 O 



S 1.0 



BLACK MARLIN 



•58 



• 68 



• 62 



64 

 •63-66 „ 



•TO 



•56 



•60 



•59 •61 



• 57 



• 65 



• 74 

 • 72 



• 75 



73^ 



20 30 40 



EFFECTIVE EFFORT ( 10^ HOOKS ) 



and 



Figure 10. --Predicted relationship between equilibrium yield (10^ MT) 

 effective effort (10^ hooks) for Indian Ocean black marlin, based on 

 production model analysis. (From Wetherall et al . see text footnote 1.) 



