Skip to main content


Fig. 5 | BMC Zoology

Fig. 5

From: High-resolution monitoring from birth to sexual maturity of a male reef manta ray, Mobula alfredi, held in captivity for 7 years: changes in external morphology, behavior, and steroid hormones levels

Fig. 5

Changes in the plasma steroid hormones levels in No10–2 during the monitoring period. Changes in testosterone, dihydrotestosterone, 17ß-estradiol, progesterone, and monthly-averaged water temperatures in the tank. “DL” means off-scale low; “Over” indicates that the parameter was not measurable using the scale applied; * indicate the timing that No10–2 start to join the mating train; ** indicates chasing period with observed copulation; *** indicate appearance time of the active chasing behavior without copulation

Back to article page