Do the intestinal microbiotas differ between paddlefish (Polyodon spathala ) and bighead carp (Aristichthys nobilis ) reared in the same pond?

• DOI: 10.1111/jam.12626
• Publication Date: 2014-08-22T15:42:46Z
• Authors: X.M. Li; Y.J. Zhu; Q.Y. Yan; E. Ringø; D.G. Yang
• Keywords: Fusobacteria; Bighead carp; Planctomycetes; Megalobrama

Aims A study was conducted to compare the intestinal microbial compositions of two fish species with similar feeding strategy; paddlefish (Polyodon spathala) and bighead carp (Aristichthys nobilis) reared in same pond. Methods Results Age-0 mean average body lengths 43·39 ± 2·78 19·33 3·68 cm, respectively, were natural prey items pond (20 m2). After 30 days rearing, microbiota assessed by pyrosequencing 16S rRNA genes. Interestingly, deviations observed communities according alpha- beta-diversity measurements detrended correspondence analysis (DCA). Shannon diversity (P = 0·015) Pielou.evenness 0·035) revealed significant lower paddlefish. Moreover, different core noticed species. Proteobacteria (57·3%), Firmicutes (11·9%), Fusobacteria (8·9%), Planctomycetes (7·3%), Actinobacteria (6·0%) Verrucomicrobia (3·2%) detected carp, while dominant phyla intestines Bacteroidetes (37·0%), (35·1%), (14·8%) (12·6%). Conclusions Our results that differed between when fed nature food. The potential host factors, such as genetic background, gut histology physiology are assumed be involved bacterial compositions. Significance Impact Study Considering strategy this presents basic knowledge for evaluation importance factors (genetic background anatomy) on composition.