Comportamiento de supervivencia en alevines de paiche (Arapaima gigas) en la Amazonía Ecuatoriana: oportunidades para el desarrollo sostenible de comunidades indígenas

Verónica Elizabeth Urdiales Vallejo; Verónica Cristina  Andrade Yucailla; Julio Fernando  Vargas Castro

doi:10.59169/pentaciencias.v7i4.1582

Authors

Verónica Elizabeth Urdiales Vallejo Universidad Estatal Península de Santa Elena https://orcid.org/0009-0006-3282-0830
Verónica Cristina Andrade Yucailla Universidad Estatal Península de Santa Elena https://orcid.org/0000-0001-7909-2128
Julio Fernando Vargas Castro Universidad Técnica Estatal de Quevedo https://orcid.org/0009-0000-0343-3635

DOI:

https://doi.org/10.59169/pentaciencias.v7i4.1582

Keywords:

fingerlings; Amazon; harvest; mortality; paiche

Abstract

The aim of this research was to evaluate the survival of Arapaima gigas (paiche) fingerlings under conditions in the Ecuadorian Amazon. The study was conducted at the Virgen del Cisne farm, located in Sucumbíos, Ecuador, at 297 masl, with an average temperature of 25 °C and a relative humidity of 81 %. Two breeding pairs were used. The fingerlings were harvested when they were observed swimming around the mother. They were subsequently transferred to the laboratory and maintained in tanks at 23 °C. Collection 1 of fingerlings from breeding pair 1 showed approximately 52 % survival, compared to breeding pair 2, which showed 77 %. However, in the same breeding pair, but in collection 2, the survival percentage was observed to increase, to approximately 81% and 86%, respectively. Under the conditions of this study, it can be concluded that captive breeding of Paiche can reach more than 77 % survival when considering aspects such as low collection by arretes, no sudden changes in feeding and temperature control through water exchanges.

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