Reproductive cycle of the female Anisotremus scapularis (Tschudi, 1846) on the marine coast of Callao, basic knowledge to go towards its aquaculture

Anisotremus scapularis is an important commercial species in Perú, being a prioritized for the development of its aquaculture. The aim study was to establish A. female reproductive cycle and strategy on marine coast Callao, through seasonal sampling wild specimens. specimen collection carried out between January 2019 December 2020. Eighty-one specimens were collected, biometric indices calculated such as condition factor (K) or gonadosomatic index (GSI), among others. phases established by ovary histology association with steroid profile analysis performed GC-EI-MS/MS. classified asynchronous spawning indeterminate fecundity. average size at first maturity L100 25.3 cm. GSI distribution significantly higher collected summer than other seasons. plasma concentration 17 β -estradiol, androstenedione-4, testosterone per phase statistically significant. -estradiol capable phases. positively associated autumn Thus, possible propose that season begins late spring until middle Callao area. recorded superficial temperature daylight hours day specimen’s area, allowed us thermo-photoperiod program management broodstock. This should include temperatures 12.5 - 13.5°C 11/13 light/darkness photoperiod, then be increased 16 17°C, 13/11 photoperiod second cycle. Although results this are limited specific area coast, establishing dynamics females environmental parameters, provides basic knowledge improve aquaculture species.