Penaeus vannamei challenged with a Vibrio parahaemolyticus AHPND strain shows hepatopancreatic microbiota imbalance

White shrimp, Penaeus vannamei, farming represents one of the most important aquaculture activities in world with a high growth rate. However, intensification processes induce negative side effects on health organism, associated dysbiosis phenomenon. Consequently, illnesses, mainly attributable to Vibrio genus bacteria, have been reported shrimp ponds. Studying diversity and ecology bacteria systems is essential prevent control diseases. Therefore, present study analyzes bacterial load microbial population variation P. vannamei hepatopancreases infected pathogenic parahaemolyticus strain (so-called CVP2) acute hepatopancreatic necrosis disease (AHPND) under controlled conditions. The results showed an change community structure hepatopancreas. Furthermore, presence considerably increased clearly dominated compared control. Dysbiosis microbiota constrictions tubules (characteristic signs early stage AHPND) could be observed before visible manifestation disease.