The effects of microplastics (MPs) on aquaculture animals have raised increasing concern, but studies on MPs contamination in cultured shrimp are still limited. Therefore, the responses of three widely farmed shrimp species to MPs, including Penaeus monodon (P. monodon), Marsupenaeus japonicas (M. japonicus) and Litopenaeus vannamei (L. vannamei), were investigated in this study. The results showed that the mortality of P. monodon, M. japonicus and L. vannamei were 47%, 53% and 20% respectively after 48 h of 300 mg/L MPs exposure. After 48 h of 100 mg/L MPs exposure, for P. monodon, the MPs content in water and excreta were significantly different from that in M. japonicus and L. vannamei. For genes expressions, the expression of catalase (Cat) was significantly increased and the expression of apoptosis protein (IAP) was inhibited in these three shrimps, but only the expression of Lysozyme (Lys) was increased in L. vannamei after MPs exposure. After 48 h of depuration, the Cat and IAP expression of P. monodon and M. japonicus was significant decreased while the IAP and Lys expression of L. vannamei still maintained at a high level. The results suggested that the metabolic rate of MPs in P. monodon was significantly higher than that in M. japonicus and L. vannamei. The tolerance of L. vannamei to MPs was higher than that of P. monodon and M. japonicas and their different responses in anti-microbial gene might be one of the reasons for the difference of their mortality. This study provides the first report comparing the organism response distinction in cultured shrimp and enriching to the understanding of the impact of MPs on ecosystem.

微塑料（MPs）对水产养殖动物的影响引起了越来越多的关注，但是对养殖虾中MPs污染的研究仍然有限。因此，本研究调查了三种广泛养殖的虾类物种对MP的响应，包括斑节对虾（P. monodon）（P. monodon），日本滨Marsupenaeus japonicas（M. japonicus）和凡纳滨对虾Litopenaeus vannamei（L. vannamei）。结果表明，死亡率斑节对虾，M.刺参和凡纳滨对虾300 mg / L的国会议员暴露48小时后分别为47％，53％和20％。100 mg / L MPs暴露48小时后，斑节对虾在水和排泄物的MP含量均不同于在显著不同M.刺参和凡纳滨对虾。对于基因表达，这三只虾中过氧化氢酶（Cat）的表达显着增加，而凋亡蛋白（IAP）的表达被抑制，但是仅MPs暴露后南美白对虾的溶菌酶（Lys）表达增加。净化48 h后，斑节对虾和日本支原体的Cat和IAP表达显着降低，而IAP和Lys的表达显着降低。南美白对虾仍保持较高水平。结果表明，斑节对虾MPs的代谢率明显高于M. japonicus和L. vannamei。公差南美白对虾国会议员比更高的斑节对虾和M.粳稻和抗微生物基因各自不同的反应可能是原因为他们的死亡率的差异之一。这项研究提供了第一份报告，比较了养殖对虾的生物反应区别，并丰富了对MPs对生态系统影响的理解。