Dietary differences are reflected on the gut prokaryotic community structure of wild and commercially reared sea bream (Sparus aurata).

ABSTRACT: We compared the gut prokaryotic communities in wild, organically-, and conventionally reared sea bream (Sparus aurata) individuals. Gut microbial communities were identified using tag pyrosequencing of the 16S rRNA genes. There were distinct prokaryotic communities in the three different fish nutritional treatments, with the bacteria dominating over the Archaea. Most of the Bacteria belonged to the Proteobacteria, Firmicutes, Actinobacteria, and Bacteroidetes. The number of bacterial operational taxonomic units (OTUs) was reduced from the wild to the conventionally reared fish, implying a response of the gut microorganisms to the supplied food and possibly alterations in food assimilation. The dominant bacterial OTU in all examined fish was closely related to the genus Diaphorobacter. This

SUBMITTER: Kormas KA 

PROVIDER: S-EPMC4234263 | biostudies-literature | 2014 Oct

REPOSITORIES: biostudies-literature