Breeding of a Wild Population of South Pacific Bonito Sarda chiliensis chiliensis (Cuvier 1832) Broodstock under Laboratory Conditions in Pisagua, Northern Chile

Animals

Germán E. Merino¹  Renzo Pepe-Victoriano²  Héctor Aravena-Ambrosetti³ 

[1] Departamento de Acuicultura, Facultad de Ciencias del Mar, Universidad Católica del Norte, Larrondo 1281, Coquimbo 1780000, Chile;Facultad de Recursos Naturales y Renovables, Área de Biología Marina y Acuicultura, Universidad Arturo Prat, Avenida Santa María 2998, Arica 1000000, Chile;Programa de Magíster en Acuicultura Mención, Cultivo de Recursos Hidrobiológicos y Mención Acuaponia, Facultad de Recursos Naturales y Renovables, Universidad Arturo Prat, Avenida Santa María 2998, Arica 1031597, Chile;

关键词: wild-caught broodstock;    RAS;    spawning;    egg incubation;    larval culture;   

DOI  :  10.3390/ani12010024

来源: DOAJ

【 摘 要 】

The wild population of South Pacific bonito Sarda chiliensis chiliensis, which has a wide distribution in northern Chile, is considered of importance in Chilean aquaculture. The biological feasibility of cultivation of any marine species begins with the establishment of an initial broodstock population to obtain eggs, larvae, and juveniles. In this work, 22 South Pacific bonito fishing campaigns were carried out in Pisagua, Chile, between spring in November 2011 and the summer in January 2012. At least 74 specimens were obtained of which 24 survived the capture and transport processes. Fish were stocked in a recirculating land-based aquaculture system, and at 14 months under captivity, fish began spawning. Eggs were collected, to describe some stages of development, and were placed in incubators at 20 °C and on the third-day eggs hatched. Larvae reached a total length between 1.435 and 1.7 mm, which were accurately characterized during their first morphological changes. This is the first work that describes the capture, transport, and acclimatization in captivity of a breeding population of wild Pacific bonito in Chile.

【 授权许可】

Unknown