P. colias are protogynous hermaphrodites , when the length of P. colias reaches 410mm , 50 % of the females are transitional .
Growth of P. colias is measured by the relationship between age and their body length .
P. colias are protogynous P. colias , when the length of P. colias reaches 410mm , 50 % of the females are transitional .
Growth of P. colias is measured by the relationship between age and their body length .