o 

 o 



»-° 



in 



220 



210 

 200 



190 



180 



170 



160 



150 



140 



130 



120 



I 10 



100 



90 



80 



70 



60 



50 



40 



20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 380 



NUMBER POFI BASKETS 



FIG G. NINETY-FIVE- PERCENT FIDUCIAL LIMITS FOR CATCHES OF YELLOWFIN TUNA 

 MADE WITH THE TYPE OF LONGLINE GEAR DESCRIBED BY NISKA(I953). THIS 

 GRAPH MAY BE USED TO ESTIMATE THE 95-PERCENT (2 (?) LIMITS FOR THE 

 CATCH OF ANY STATION OF 20-80 BASKETS OR ANY COMBINATION OF SUCH 

 STATIONS, FOR A COMBINATION OF STATIONS THE APPROPRIATE LIMITS ARE READ 

 BY ENTERING AT THE TOTAL NUMBER OF BASKETS INVOLVED, AS IN THE INSTANCE 

 OF A SINGLE STATION. FOR INSTANCE A CATCH OF 10 YELLOWFIN / 100 HOOKS 

 BASED ON 120 BASKETS (e.g. 3, 40 BASKET STATIONS) HAS LIMITS OF 6.5/100 

 15.5/100 HOOKS. 



22 



