How elevated nitrogen load affects bacterial community structure and nitrogen cycling services in coastal water
Nutrient pollution in the coastal environment has been accelerated by progressively intensifying aquaculture activities. Excessive nutrients can lead to coastal eutrophication with serious economic and ecological consequences. In this study, we studied coastal planktonic microbial community over a y...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-12-01
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| Series: | Frontiers in Microbiology |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmicb.2022.1062029/full |
| _version_ | 1797979292110422016 |
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| author | Linus Shing Him Lo Linus Shing Him Lo Zhimeng Xu Zhimeng Xu Sangwook Scott Lee Sangwook Scott Lee Wing Keung Lau Jian-Wen Qiu Jian-Wen Qiu Hongbin Liu Hongbin Liu Pei-Yuan Qian Pei-Yuan Qian Jinping Cheng Jinping Cheng |
| author_facet | Linus Shing Him Lo Linus Shing Him Lo Zhimeng Xu Zhimeng Xu Sangwook Scott Lee Sangwook Scott Lee Wing Keung Lau Jian-Wen Qiu Jian-Wen Qiu Hongbin Liu Hongbin Liu Pei-Yuan Qian Pei-Yuan Qian Jinping Cheng Jinping Cheng |
| author_sort | Linus Shing Him Lo |
| collection | DOAJ |
| description | Nutrient pollution in the coastal environment has been accelerated by progressively intensifying aquaculture activities. Excessive nutrients can lead to coastal eutrophication with serious economic and ecological consequences. In this study, we studied coastal planktonic microbial community over a year to understand the aquaculture impact on coastal water quality and function. We observed increased total inorganic nitrogen concentrations in active fish farms to favor the diverse Alpha- and Gammaproteobacteria. Bacterial community alpha diversity in fish farms was positively correlated with total inorganic nitrogen, and active fish farming co-influenced the bacterial structural composition and regional beta diversity. By analyzing the nitrogen cycle-related functional compositions and pathways using PICRUSt2 prediction on inferred genomes, we identified the contribution of over 600 bacterial species to four major pathways. Enhanced nitrogen load in active fish farms was positively correlated with elevated dissimilatory nitrate reduction and denitrification pathway abundances. Fallowed fish farms were characterized by a predicted high abundance of nirA and narB genes contributing to assimilatory nitrate reduction pathway due to the prevalence of Cyanobacteria. Overall, these results suggested active operation and short hiatus in coastal aquaculture practices could rapidly impact planktonic bacterial communities and further influence nitrogen cycling and associated processes. These findings will improve the understanding of the responses and interactions between microbiome and aquaculture activities. In a world of increasing aquaculture demands, this work has important implications for sustainable water resource management and development. |
| first_indexed | 2024-04-11T05:36:40Z |
| format | Article |
| id | doaj.art-2e6d6495bde6453494f43fc034c0db34 |
| institution | Directory Open Access Journal |
| issn | 1664-302X |
| language | English |
| last_indexed | 2024-04-11T05:36:40Z |
| publishDate | 2022-12-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Microbiology |
| spelling | doaj.art-2e6d6495bde6453494f43fc034c0db342022-12-22T11:53:48ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2022-12-011310.3389/fmicb.2022.10620291062029How elevated nitrogen load affects bacterial community structure and nitrogen cycling services in coastal waterLinus Shing Him Lo0Linus Shing Him Lo1Zhimeng Xu2Zhimeng Xu3Sangwook Scott Lee4Sangwook Scott Lee5Wing Keung Lau6Jian-Wen Qiu7Jian-Wen Qiu8Hongbin Liu9Hongbin Liu10Pei-Yuan Qian11Pei-Yuan Qian12Jinping Cheng13Jinping Cheng14Department of Ocean Science, The Hong Kong University of Science and Technology, Kowloon, Hong Kong SAR, ChinaThe Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, ChinaDepartment of Ocean Science, The Hong Kong University of Science and Technology, Kowloon, Hong Kong SAR, ChinaThe Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, ChinaDepartment of Ocean Science, The Hong Kong University of Science and Technology, Kowloon, Hong Kong SAR, ChinaThe Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, ChinaDepartment of Ocean Science, The Hong Kong University of Science and Technology, Kowloon, Hong Kong SAR, ChinaThe Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, ChinaDepartment of Biology, Hong Kong Baptist University, Kowloon, Hong Kong SAR, ChinaDepartment of Ocean Science, The Hong Kong University of Science and Technology, Kowloon, Hong Kong SAR, ChinaThe Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, ChinaDepartment of Ocean Science, The Hong Kong University of Science and Technology, Kowloon, Hong Kong SAR, ChinaThe Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, ChinaThe Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, ChinaDepartment of Science and Environmental Studies, The Education University of Hong Kong, Tai Po, Hong Kong SAR, ChinaNutrient pollution in the coastal environment has been accelerated by progressively intensifying aquaculture activities. Excessive nutrients can lead to coastal eutrophication with serious economic and ecological consequences. In this study, we studied coastal planktonic microbial community over a year to understand the aquaculture impact on coastal water quality and function. We observed increased total inorganic nitrogen concentrations in active fish farms to favor the diverse Alpha- and Gammaproteobacteria. Bacterial community alpha diversity in fish farms was positively correlated with total inorganic nitrogen, and active fish farming co-influenced the bacterial structural composition and regional beta diversity. By analyzing the nitrogen cycle-related functional compositions and pathways using PICRUSt2 prediction on inferred genomes, we identified the contribution of over 600 bacterial species to four major pathways. Enhanced nitrogen load in active fish farms was positively correlated with elevated dissimilatory nitrate reduction and denitrification pathway abundances. Fallowed fish farms were characterized by a predicted high abundance of nirA and narB genes contributing to assimilatory nitrate reduction pathway due to the prevalence of Cyanobacteria. Overall, these results suggested active operation and short hiatus in coastal aquaculture practices could rapidly impact planktonic bacterial communities and further influence nitrogen cycling and associated processes. These findings will improve the understanding of the responses and interactions between microbiome and aquaculture activities. In a world of increasing aquaculture demands, this work has important implications for sustainable water resource management and development.https://www.frontiersin.org/articles/10.3389/fmicb.2022.1062029/fullmicrobial communitycoastal aquaculturenitrogen cycleecological functionscoastal water |
| spellingShingle | Linus Shing Him Lo Linus Shing Him Lo Zhimeng Xu Zhimeng Xu Sangwook Scott Lee Sangwook Scott Lee Wing Keung Lau Jian-Wen Qiu Jian-Wen Qiu Hongbin Liu Hongbin Liu Pei-Yuan Qian Pei-Yuan Qian Jinping Cheng Jinping Cheng How elevated nitrogen load affects bacterial community structure and nitrogen cycling services in coastal water Frontiers in Microbiology microbial community coastal aquaculture nitrogen cycle ecological functions coastal water |
| title | How elevated nitrogen load affects bacterial community structure and nitrogen cycling services in coastal water |
| title_full | How elevated nitrogen load affects bacterial community structure and nitrogen cycling services in coastal water |
| title_fullStr | How elevated nitrogen load affects bacterial community structure and nitrogen cycling services in coastal water |
| title_full_unstemmed | How elevated nitrogen load affects bacterial community structure and nitrogen cycling services in coastal water |
| title_short | How elevated nitrogen load affects bacterial community structure and nitrogen cycling services in coastal water |
| title_sort | how elevated nitrogen load affects bacterial community structure and nitrogen cycling services in coastal water |
| topic | microbial community coastal aquaculture nitrogen cycle ecological functions coastal water |
| url | https://www.frontiersin.org/articles/10.3389/fmicb.2022.1062029/full |
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