CONTRIBUCIÓN A LA BIOLOGÍA DE Sarda chiliensis chiliensis (CUVIER, 1832), PARA EL DESARROLLO DE LA ACUICULTURA EN EL NORTE DE CHILE

• DOI: 10.22533/at.ed.0472311103

• Palavras-chave: Acondicionamiento, desove, embriología, larvas, bonito

• Keywords: Conditioning, spawning, embryology, larvae, bonito.

• Abstract: The biological viability of culture of any marine species begins with the establishment of an initial broodstock to obtain eggs, larvae and juveniles. The fish were wild-caught and conditioned to captivity for over 1 year in a 75 m3 marine terrestrial aquaculture recirculation system. At 14 months in captivity, the fish began to spawn. Eggs were collected to describe some developmental stages, placed in incubators at 20 ºC, and on the third day, translucent telolecists hatched, a comparatively longer time than that recorded for the Atlantic bonito Sarda sarda and the eastern Pacific bonito Sarda chiliensis lineolata. Finally, and according to the morphological and morphometric characteristics of the larvae observed, six post-embryonic stages were described in this research: larval stages 1 to 4, prejuvenile and juvenile. It is worth mentioning that these are the first works that describe: a) the capture, transport and acclimatization in captivity of a reproductive population of wild Pacific bonito in Chile b) embryonic development carried out with naturally spawned eggs of Sarda chiliensis chiliensis and c) the determination of the six larval stages of the southeastern Pacific bonito.