252 



Fishery Bulletin 97(2), 1999 



Marl in January 



100 % 80 ?0 60 50 AtJ 



Marlin February 



70 60 5C 40 



100 90 



60 



Mariin March 



70 60 50 40 



30 20 10 



70 60 50 40 30 20 10 



30 20 10 



70 60 5C 40 30 20 10 



100 90 



60 



Marlin May 



70 60 50 40 



20 20 



70 60 50 40 30 20 10 



100 90 



eo 



Marlin June 



70 60 50 40 



90 60 70 



30 20 10 



30 20 10 



Figure 4 



Distribution of 1986-91 U.S. pelagic-longline fi.shing effort hv month and area fished (stippled or diagonally shaded cells of 5 cell 

 or smaller Month-area cells where marlin bycatch percentages were greater than the 50'7r threshold levels for 1 (filled), 2" 

 (horizontal shading), and 5 (diagonal shading) cells. Elimination of the effort in these cells would have reduced the marlin 

 bycatch by 507f and reduced the target species catch by 16.4, 19.6 and 20.7'*, respectively 



