Cetobacterium is a major component of the microbiome of giant amazonian fish (Arapaima gigas) in Ecuador
2018
Ramírez Saavedra, Carolina | Coronado, Jaime | Silva, Arturo | Romero Ormazábal, Jaime
Arapaima gigas is a large air-breathing fish found in Amazonian rivers, a characteristic that gives this species an advantage in oxygen-deprived waters. It shows high potential for aquaculture in the Amazon region due to its fast growth rate that approaches 10–15 kg/year. The aim of this study was to explore the composition of the intestinal bacterial community of Arapaima gigas reared in Ecuador using 16S rRNA gene high-throughput sequencing. The analysis revealed significant differences in alpha diversity indices (p < 0.05) and differential distribution of minor components of the intestinal microbiome between small and large fish. However, components with greater relative abundance, such as Cetobacterium, are found in similar proportions.
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