-208- 



o 



h- 

 t 

 O 



100 200 300 400 500 600 



FISHING EFFORT (10* EFFECTIVE HOOKS) 



Figure 6. --Catch and effort plots with curves fitted to the model for 

 m = 0, 1, and 2 (k = 3), respectively, for yellowfin tuna caught in the 

 Pacific-wide longline fishery, 1952-77. (From FAO in press.) 



