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Fishery Bulletin 93(1), 1995 



species where good tag and recapture data are avail- 

 able (i.e. where specimens are measured at both tag- 

 ging and recapture, properly identified, and there is 

 sufficient sample size), a better estimate of longev- 

 ity is produced than from hardpart analysis. They 



concluded that the initial growth curve based on ver- 

 tebrae for the sandbar shark had severely underes- 

 timated the age at maturity and maximum age and 

 had overestimated the growth rate (Casey et al., 

 1985). At the present time, the vertebral growth curve 



