Fig 6. Mean (± SE) plasma (a) Testosterone (T), (b) 11-Ketotestosterone (11-KT) and (c) 17,20β-P in wild and captive-reared greater amberjack males at three phases of the reproductive season.

White and black asterisks indicate statistically significant differences versus the preceding phase in wild specimens and in captive-reared specimens, respectively. Different letters indicate significant differences between wild and captive-reared individuals in the same phase of the reproductive cycle (P < 0.05).