Cuellar et al.: Reproductive seasonality, maturation, fecundity, and spawning frequency of the vermilion snapper 



645 



Male 

 Female 



MAMJ JASOND 



Month 



MAMJ 



Figure 9 



Percentages of reproductively active male and female ver- 

 milion snapper in each month from April 1992 through May 

 1993. 



BF = 0.0438FL 2 508 (F=37.6, df=l,47, P <0.0001) 



BF = 14,037 + ( 112 x OFWT) 



(F=23.3, df=l,47, 

 P<0.0001). 



and the relation between OFWT and batch fecun- 

 dity by the following equation, with r 2 = 0.332 

 (Fig. 14): 



Batch fecundity varied remarkably among fish of 

 the same size (Table 12; Fig. 13). ANCOVA was run 

 on monthly linear regression equations of FL on BF. 



