Relationships between the Gut Microbiota of Juvenile Black Sea Bream (<i>Acanthopagrus schlegelii</i>) and Associated Environment Compartments in Different Habitats
The fish-gut microbiota play a key role in the physiology, development, and fitness of its host. An understanding of fish-gut microbial communities and the factors influencing community composition is crucial for improving fish performance. In this study, we compared the gut microbiota of juvenile b...
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MDPI AG
2021-12-01
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| Series: | Microorganisms |
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| Online Access: | https://www.mdpi.com/2076-2607/9/12/2557 |
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| author | Peng Sun Hui Zhang Yazhou Jiang Quanxin Gao Baojun Tang Jianzhong Ling Xingwei Yuan |
| author_facet | Peng Sun Hui Zhang Yazhou Jiang Quanxin Gao Baojun Tang Jianzhong Ling Xingwei Yuan |
| author_sort | Peng Sun |
| collection | DOAJ |
| description | The fish-gut microbiota play a key role in the physiology, development, and fitness of its host. An understanding of fish-gut microbial communities and the factors influencing community composition is crucial for improving fish performance. In this study, we compared the gut microbiota of juvenile black sea bream <i>Acanthopagrus schlegelii</i> among habitats: (1) wild, (2) offshore cage-culture, and (3) pond-culture. We also explored the relationships between the gut microbiota and host-associated environmental factors. Gut samples and associated environmental compartments were investigated using 16S rRNA gene sequencing. Our results revealed significant habitat-specific differences among the gut microbiota of juvenile <i>A. schlegelii</i>. Wild populations of juvenile <i>A. schlegelii</i> had more diverse gut microbiota than populations cultured in pond habitats due to their omnivorous feeding habits and the corresponding abundance of natural food resources. Significant variations in the composition, core taxa, and diversity of the microbiota were also found between the gut and the environmental compartments. However, no significant differences were observed among the microbiota of the environmental compartments in the relatively isolated pond habitat. Source tracking analysis recovered connections between the fish-gut microbiota and the diet, water and sediment environmental compartments. This connection was especially strong between the microbiota of the fish gut and that of the diet in the pond habitat: the diet microbiota accounted for 33.48 ± 0.21% of the gut microbiota. Results suggested that all <i>A. schlegelii</i> shared a core gut microbiota, regardless of differences in diet and habitat. However, environmental factors associated with both diet and habitat contributed to the significant differences between the gut microbiota of fish living in different habitats. To the authors’ knowledge, this study presents the first comparison of gut microbiota among juvenile <i>A. schlegelii</i> with different diets and habitats. These findings enrich our understanding of the gut microbiota of <i>A. schlegelii</i> and help to clarify the interaction between gut microbiota and environmental factors. Our results may also help to guide and improve fish ecological fitness via the regulation of gut microbiota, thereby increasing the efficacy of stock enhancement programs for this species. |
| first_indexed | 2024-03-10T03:31:46Z |
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| language | English |
| last_indexed | 2024-03-10T03:31:46Z |
| publishDate | 2021-12-01 |
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| spelling | doaj.art-dc546c0069354a92a40da3d5e41796292023-11-23T09:39:47ZengMDPI AGMicroorganisms2076-26072021-12-01912255710.3390/microorganisms9122557Relationships between the Gut Microbiota of Juvenile Black Sea Bream (<i>Acanthopagrus schlegelii</i>) and Associated Environment Compartments in Different HabitatsPeng Sun0Hui Zhang1Yazhou Jiang2Quanxin Gao3Baojun Tang4Jianzhong Ling5Xingwei Yuan6Key Laboratory of East China Sea Fishery Resources Exploitation, Ministry of Agriculture, East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, ChinaKey Laboratory of East China Sea Fishery Resources Exploitation, Ministry of Agriculture, East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, ChinaKey Laboratory of East China Sea Fishery Resources Exploitation, Ministry of Agriculture, East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, ChinaZhejiang Provincial Key Laboratory of Aquatic Resources Conservation and Development, College of Life Science, Huzhou University, Huzhou 313000, ChinaKey Laboratory of East China Sea Fishery Resources Exploitation, Ministry of Agriculture, East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, ChinaKey Laboratory of East China Sea Fishery Resources Exploitation, Ministry of Agriculture, East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, ChinaKey Laboratory of East China Sea Fishery Resources Exploitation, Ministry of Agriculture, East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, ChinaThe fish-gut microbiota play a key role in the physiology, development, and fitness of its host. An understanding of fish-gut microbial communities and the factors influencing community composition is crucial for improving fish performance. In this study, we compared the gut microbiota of juvenile black sea bream <i>Acanthopagrus schlegelii</i> among habitats: (1) wild, (2) offshore cage-culture, and (3) pond-culture. We also explored the relationships between the gut microbiota and host-associated environmental factors. Gut samples and associated environmental compartments were investigated using 16S rRNA gene sequencing. Our results revealed significant habitat-specific differences among the gut microbiota of juvenile <i>A. schlegelii</i>. Wild populations of juvenile <i>A. schlegelii</i> had more diverse gut microbiota than populations cultured in pond habitats due to their omnivorous feeding habits and the corresponding abundance of natural food resources. Significant variations in the composition, core taxa, and diversity of the microbiota were also found between the gut and the environmental compartments. However, no significant differences were observed among the microbiota of the environmental compartments in the relatively isolated pond habitat. Source tracking analysis recovered connections between the fish-gut microbiota and the diet, water and sediment environmental compartments. This connection was especially strong between the microbiota of the fish gut and that of the diet in the pond habitat: the diet microbiota accounted for 33.48 ± 0.21% of the gut microbiota. Results suggested that all <i>A. schlegelii</i> shared a core gut microbiota, regardless of differences in diet and habitat. However, environmental factors associated with both diet and habitat contributed to the significant differences between the gut microbiota of fish living in different habitats. To the authors’ knowledge, this study presents the first comparison of gut microbiota among juvenile <i>A. schlegelii</i> with different diets and habitats. These findings enrich our understanding of the gut microbiota of <i>A. schlegelii</i> and help to clarify the interaction between gut microbiota and environmental factors. Our results may also help to guide and improve fish ecological fitness via the regulation of gut microbiota, thereby increasing the efficacy of stock enhancement programs for this species.https://www.mdpi.com/2076-2607/9/12/2557<i>Acanthopagrus schlegelii</i>gut microbiotadiethabitatenvironment |
| spellingShingle | Peng Sun Hui Zhang Yazhou Jiang Quanxin Gao Baojun Tang Jianzhong Ling Xingwei Yuan Relationships between the Gut Microbiota of Juvenile Black Sea Bream (<i>Acanthopagrus schlegelii</i>) and Associated Environment Compartments in Different Habitats Microorganisms <i>Acanthopagrus schlegelii</i> gut microbiota diet habitat environment |
| title | Relationships between the Gut Microbiota of Juvenile Black Sea Bream (<i>Acanthopagrus schlegelii</i>) and Associated Environment Compartments in Different Habitats |
| title_full | Relationships between the Gut Microbiota of Juvenile Black Sea Bream (<i>Acanthopagrus schlegelii</i>) and Associated Environment Compartments in Different Habitats |
| title_fullStr | Relationships between the Gut Microbiota of Juvenile Black Sea Bream (<i>Acanthopagrus schlegelii</i>) and Associated Environment Compartments in Different Habitats |
| title_full_unstemmed | Relationships between the Gut Microbiota of Juvenile Black Sea Bream (<i>Acanthopagrus schlegelii</i>) and Associated Environment Compartments in Different Habitats |
| title_short | Relationships between the Gut Microbiota of Juvenile Black Sea Bream (<i>Acanthopagrus schlegelii</i>) and Associated Environment Compartments in Different Habitats |
| title_sort | relationships between the gut microbiota of juvenile black sea bream i acanthopagrus schlegelii i and associated environment compartments in different habitats |
| topic | <i>Acanthopagrus schlegelii</i> gut microbiota diet habitat environment |
| url | https://www.mdpi.com/2076-2607/9/12/2557 |
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