Quantifying changes in umbilicus size to estimate the relative age of neonatal blacktip reef sharks (Carcharhinus melanopterus)

This dataset contains one file with the umbilicus sizes (area and perimeter) of the individuals used in the construction of the temporal regression relationships and one file containing the precaudal length (PCL, in cm), mass (in kg), and body condition (Fulton's K) to assess transitions in morphometrics with age.