This lack of stability may promote the development of toxic algal species increasing the risk of infection. The close relationship between the incidence of shrimp diseases and the surrounding microbial community has been well established by several authors ( Kautsky et al., 2000 and Zhang et al., 2014). However, our knowledge of phytoplankton community diversity and dynamics in ponds, particularly harmful algae, is still too fragmentary to fully understand the mechanisms triggering and/or promoting disease outbreaks (Casé et al., 2008).