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ORIGINAL RESEARCH article

Front. Cell. Infect. Microbiol.
Sec. Veterinary and Zoonotic Infection
Volume 14 - 2024 | doi: 10.3389/fcimb.2024.1420928
This article is part of the Research Topic Effects of Pathogen Parasitism on Host Metabolism in Aquaculture Animals View all 5 articles

Insights into the intestinal microbiota of Exopalaemon annandalei and Exopalaemon carinicauda in the Yangtze River estuary

Provisionally accepted
Jiahao Wang Jiahao Wang 1,2Guangpeng Feng Guangpeng Feng 1*Zhiqiang Han Zhiqiang Han 2Tao Zhang Tao Zhang 1Jinhui Chen Jinhui Chen 3Jianhui Wu Jianhui Wu 3,4
  • 1 East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai, China
  • 2 Zhejiang Marine Fisheries Research Institute, Zhejiang Ocean University, Zhoushan, Zhejiang Province, China
  • 3 Shanghai Aquatic Wildlife Conservation Research Center, Shanghai, China
  • 4 Shanghai Yangtze River Estuary Fishery Resources Enhancement and Ecological Restoration Engineering and Technology Research Center, Shanghai, China

The final, formatted version of the article will be published soon.

    The gut microbiota plays a crucial role in food webs, carbon cycling, and related elements.Exopalaemon annandalei and Exopalaemon carinicauda are two important forage species in the Yangtze River estuary with extremely similar living habits and morphological characteristics. Exploring the microorganisms in the guts of these two shrimp species can help us understand the survival status of forage species and gut microbiota in the Yangtze River estuary. Therefore, this study analyzed the similarities and differences in the intestinal flora of E. annandalei and E. carinicauda through highthroughput sequencing of 16S rRNA gene amplicons. The results showed that the dominant bacteria in the intestinal flora of E. annandalei and E. carinicauda at the phylum level were Proteobacteria and Firmicutes, respectively. At the genus level, the intestinal flora had higher concentrations of Psychrobacter, Bacillus, Pseudomonas, Acinetobacter, and Macrococcus. In both shrimp species, the contents of Acinetobacter and Macrococcus were higher in spring than in winter. The most important potential functions of the intestinal microbiota were amino acid metabolism and purine metabolism.Additionally, the functions of metabolism and diseases in the intestinal microbiota of E. annandalei were greatly influenced by the season. Furthermore, the experimental results indicated that a lower ratio of Firmicutes to Bacteroidetes was associated with a larger body weight in shrimp. Overall, this study provides a theoretical reference for understanding the intestinal bacterial community of shrimp in estuaries and the healthy cultivation of E. annandalei and E. carinicauda.

    Keywords: gut microbiome, Exopalaemon annandalei, Exopalaemon carinicauda, high-throughput sequencing, Yangtze river estuary

    Received: 21 Apr 2024; Accepted: 27 Jun 2024.

    Copyright: © 2024 Wang, Feng, Han, Zhang, Chen and Wu. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Guangpeng Feng, East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai, China

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