644 



Fishery Bulletin 94(4). 1996 





Figure 7 



Gonadosomatic index (GSI) values by month for female ver- 

 milion snapper that were collected from April 1992 through May 

 1993. GSI = gonad weight (g)/ovary-free body weight (g). 



Histological examination for alpha atresia of 

 samples with AYO's (n=410) revealed that only 2% 

 of all females had major alpha atresia of AYO's and 

 that 27.5% had minor alpha atresia of AYO's (Table 

 10). Percentages of minor and major alpha atresia of 

 AYO's were similar between whole oocyte samples 

 and histological samples. 



A one-way ANOVA on 49 females detected no signifi- 

 cant difference among batch sizes ( Table 11). All spawn- 

 ing batches were found throughout the spawning sea- 

 son, with batch 1 and batch 2 having the highest per- 

 centages in each month (Fig. 12). The relationship be- 

 tween fish length and batch fecundity was best de- 

 scribed by the following equation, with r*= 0.444 ( Fig. 13): 



