FISHERY BULLETIN: VOL. 81. NO. 4 



Gag M= 0.35 

 Yield Per Recruit in Weight 

 600g 



FlGl'RK 16.— Yield per recruit in 

 weight of gag where M = 0.35. 



z 



s 



< 



FIGURE 17.— Yield per recruit in 

 weight .of gag where M = 0.20. 



10 



0.1 



deal with the technically and politically troubling 

 problems of restricting F. However, much of the 

 knowledge required for management requires infor- 

 mation in addition to knowledge of the yield per re- 

 cruit responses. Currently much of this additional 

 information is imprecise. 



Despite missing and imprecise information, con- 

 cern about reef fish stocks has been sufficiently great 

 to foster creation of reef fish management plans by 

 the South Atlantic, Gulf of Mexico, and Caribbean 

 Fishery Management Councils. The basis of these 

 plans has been use of "the best available informa- 

 tion" as prescribed in the Fishery Management and 

 Conservation Act. In the remainder of this discussion 

 we proffer some uses and interpretations of our yield 

 per recruit models and other information about reef 

 stocks that are not necessarily precise but may, 

 indeed, be the "best available information." 



Gag M = 0.20 

 Yield Per Recruit in Weight 



1200g 1300g 1400g 



2 



0.3 



0.4 



_L 



0.5 



F 



0.6 



0.7 



0.8 



0.9 



1300 

 1200 



1.0 



692 



