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Variations and Interseasonal Changes in the Gut Microbial Communities of Seven Wild Fish Species in a Natural Lake with Limited Water Exchange during the Closed Fishing Season.
Liang, Yangyang; Wang, Zijia; Gao, Na; Qi, Xiaoxue; Zeng, Juntao; Cui, Kai; Lu, Wenxuan; Bai, Shijie.
Affiliation
  • Liang Y; Key Laboratory of Freshwater Aquaculture and Enhancement of Anhui Province, Fisheries Research Institute, Anhui Academy of Agricultural Sciences, Hefei 230001, China.
  • Wang Z; Institute of Deep-Sea Science and Engineering, Chinese Academy of Sciences, Sanya 572000, China.
  • Gao N; University of Chinese Academy of Sciences, Beijing 100049, China.
  • Qi X; Key Laboratory of Freshwater Aquaculture and Enhancement of Anhui Province, Fisheries Research Institute, Anhui Academy of Agricultural Sciences, Hefei 230001, China.
  • Zeng J; Institute of Deep-Sea Science and Engineering, Chinese Academy of Sciences, Sanya 572000, China.
  • Cui K; Institute of Deep-Sea Science and Engineering, Chinese Academy of Sciences, Sanya 572000, China.
  • Lu W; University of Chinese Academy of Sciences, Beijing 100049, China.
  • Bai S; Key Laboratory of Freshwater Aquaculture and Enhancement of Anhui Province, Fisheries Research Institute, Anhui Academy of Agricultural Sciences, Hefei 230001, China.
Microorganisms ; 12(4)2024 Apr 16.
Article in En | MEDLINE | ID: mdl-38674744
ABSTRACT
The gut microbiota of fish is crucial for their growth, development, nutrient uptake, physiological balance, and disease resistance. Yet our knowledge of these microbial communities in wild fish populations in their natural ecosystems is insufficient. This study systematically examined the gut microbial communities of seven wild fish species in Chaohu Lake, a fishing-restricted area with minimal water turnover, across four seasons. We found significant variations in gut microbial community structures among species. Additionally, we observed significant seasonal and regional variations in the gut microbial communities. The Chaohu Lake fish gut microbial communities were predominantly composed of the phyla Firmicutes, Proteobacteria(Gamma), Proteobacteria(Alpha), Actinobacteriota, and Cyanobacteria. At the genus level, Aeromonas, Cetobacterium, Clostridium sensu stricto 1, Romboutsia, and Pseudomonas emerged as the most prevalent. A co-occurrence network analysis revealed that C. auratus, C. carpio, and C. brachygnathus possessed more complex and robust gut microbial networks than H. molitrix, C. alburnus, C. ectenes taihuensis, and A. nobilis. Certain microbial groups, such as Clostridium sensu stricto 1, Romboutsia, and Pseudomonas, were both dominant and keystone in the fish gut microbial network. Our study offers a new approach for studying the wild fish gut microbiota in natural, controlled environments. It offers an in-depth understanding of gut microbial communities in wild fish living in stable, limited water exchange natural environments.
Key words

Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Microorganisms Year: 2024 Document type: Article Affiliation country: China Country of publication: Suiza

Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Microorganisms Year: 2024 Document type: Article Affiliation country: China Country of publication: Suiza