328 
Fishery Bulletin 118(4) 
ages, and L., that are greater than those of females, as 
has been observed for other species, such as the Madeira 
rockfish (La Mesa et al., 2005), small red scorpionfish 
(Neves et al., 2015), and blackbelly rosefish (Massuti 
et al., 2000). Results from our study indicate that males 
and females take approximately 10 years to reach a size 
of 30 and 35 cm TL, respectively, indicating that the 
stone scorpionfish is a slow-growing species, like most 
scorpionfish species. 
The estimates of ages and individual growth rates 
reported from this study improve our knowledge of the 
stone scorpionfish. Information from this study can be 
used for stock assessment and management of a species of 
emerging fishing potential in the artisanal fishery of the 
Gulf of California. 
Acknowledgments 
The senior author and A. Tripp-Valdez would like to 
thank the Instituto Politécnico Nacional for funding 
through a grant from the Programa de Estimulos al 
Desempeno de los Investigadores. The senior author, 
A. Tripp-Valdez, and F. Lopez-Fuerte are grateful for the 
support of the Sistema Nacional de Investigadores of the 
Consejo Nacional de Ciencia y Tecnologia. D. Whitehead 
and S. Rousso reviewed the English version of this 
manuscript. 
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