Francisella philomiragia, bacteria asociada con altas mortalidades en salmones del Atlántico (Salmo salar) cultivados en balsas-jaulas en el lago Llanquihue

Abstract

Francisella philomiragia was isolated from Atlantic salmon cage-farmed in the Llanquihue lake with outbreaks of a granulomatous disease, with high rates of morbidity and an accumulated mortalities between 5% to 20%. The isolates had 100% similarity with F. philomiragia ssp noatunensis or F. piscicida isolated in Atlantic cod, 99% similarity with Francisella sp. detected in tilapia from Asia and Central America and 99% of similarity with the reference strain F. philomiragia through 16s rDNA phylogenetic analysis.