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Effectively control of viral disease outbreak in shrimp culture system by selective predation

Chen, Y. G.; Wang, M.; Zhao, Z.; Weng, S. P.; Yang, J. C.; Liu, S. Y.; Liu, C.; Yuan, F. H.; Ai, B.; Zhang, H. Q.; Zhang, M. Y.; Lu, L. R.; Yuan, K.; Yu, Z. L.; Mo, B. B.; Zhong, Z. W.; Zheng, L. W.; Feng, G. C.; Li, S. C.; He, J. G.

2020-09-25 ecology
10.1101/2020.09.24.311563 bioRxiv
Show abstract

Due to the limited understanding of the characteristics of predator-pathogen-prey interactions, few attempts to use selective predation for controlling diseases in prey populations have been successful. The global pandemic of white spot syndrome (WSS), caused by white spot syndrome virus (WSSV), causes devastating economic losses in farmed shrimp production. Currently, there is no effective control for WSS. Here, we determined the transmission dynamics of WSSV and the feeding ability and selectivity of fish on healthy, infected and dead shrimp by experiments and mathematical modeling. Accordingly, we developed a novel and convenient shrimp cultural ecosystem, which that effectively prevented WSS outbreaks, by introducing aquaculture fish species. This provides a scheme for developing control strategies for viral diseases with high transmission rate.

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