Characterization of the marine aquaculture microbiome: A seasonal survey in a seabass farm

Vibriosis is a recurrent disease in marine aquaculture environments. Monitoring the dynamics of bacterial populations several compartments infrastructure paramount importance to understand occurrence disease. In present study, fish farm, located north France, flow-through system where tanks are supplied by two water inlets. Water from breeding tanks, and inlets biofilms were sampled weekly seabass farm for 7 months. DNA was extracted 477 samples sequence variable V4-V5 region 16S rRNA gene analyze sequences using QIIME2 platform. Proteobacteria (54.52%) Bacteroidetes (26.85%) composed more than 80% phylum diversity. Alpha- beta-diversity indicators showed that communities diverse Some families specific one compartment, e.g. ammonium-oxidizing bacteria biofilms, whereas Vibrionaceae family isolates mostly found tank samples. Taxa determined up species level Vibrionaceae. Besides, all six genera identified, with Vibrio Photobacterium detected almost persisted over time biofilms. Our results suggest may be potential reservoir case dysbiosis. This study helps better microbial interactions, especially