Seasonal changes in sex ratio and size-related sex reversal of the protogynous hermaphroditic bluespotted seabass Cephalopholis taeniops (Valenciennes, 1828)

Summary Seasonal changes in sex ratio and size‐related sex reversal of the protogynous hermaphroditic Cephalopholis taeniops were studied from histological and population data of 218 individuals captured by hook and line, July 2009–November 2012, in Cape Verde archipelago. This study showed that C. taeniops have a diandric protogynous hermaphrodite sexual model, with young individuals undergoing bisexual development and hermaphrodites above 28 cm. All gonads had a bisexual immature stage with primary and secondary males. Primary males possibly originate from immature bisexual individuals, whereas secondary males likely result from females that have already reproduced and changed sex.