Seasonal dynamics of microbial communities link to summer-autumn aquaculture disease outbreaks in Sanggou Bay
Marine microorganisms play a vital role in aquaculture by influencing water quality and the health of cultured species. Relative to conventional mono-species aquaculture, integrated multi-trophic aquaculture is more environmentally friendly and economically sustainable. However, the temporospatial d...
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| Format: | Article |
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Frontiers Media S.A.
2025-05-01
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| Series: | Frontiers in Marine Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmars.2025.1581190/full |
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| author | Longfei Lu Longfei Lu Longfei Lu Lingfang Ni Lingfang Ni Chunxiang Ai Dongdong Zhang Dongdong Zhang Pengfei Zheng Xuejing Li Xin Liu Hongyue Dang |
| author_facet | Longfei Lu Longfei Lu Longfei Lu Lingfang Ni Lingfang Ni Chunxiang Ai Dongdong Zhang Dongdong Zhang Pengfei Zheng Xuejing Li Xin Liu Hongyue Dang |
| author_sort | Longfei Lu |
| collection | DOAJ |
| description | Marine microorganisms play a vital role in aquaculture by influencing water quality and the health of cultured species. Relative to conventional mono-species aquaculture, integrated multi-trophic aquaculture is more environmentally friendly and economically sustainable. However, the temporospatial dynamics of the microbial community in different aquaculture modes and their roles in the seasonal diseases of aquacultural organisms are largely unknown. Here, the seawater bacterial communities and potential pathogens were investigated over thirteen months in three different aquaculture types in Sanggou Bay, a typical maricultural area with nearly 60 years of history. Seasonality played a primary role, while aquaculture type played a subtle role in shaping the bacterioplankton community. Diverse potential pathogens were identified, and r-strategist bacteria, most of which were opportunistic pathogens and typified by Vibrio species, increased and dominated in late summer and autumn, a period of high-risk disease outbreaks in mariculture organisms. Network analyses indicated that the increase in r-strategist bacteria reduced the complexity of microbial interactions, and Vibrio halioticoli (OTU1389), a hub species with extensive positive correlations to other Vibrio OTUs, likely contributed to the increase of pathogenic vibrios due to its macroalgae degradation capability. The major potential pathogenic Vibrio OTUs were further corroborated by genome analyses and environmental simulation experiments using pathogenic Vibrio isolates, including two new species. Moreover, we found seawater dissolved oxygen, temperature, and transparency correlated significantly with the bacterioplankton temporospatial dynamics and the seasonal outbreaks of bacterial pathogens. Our results emphasize the necessity of synchronically monitoring the bacterial community, its pathogens-stimulating species, such as V. halioticoli and other macroalgae-degrading bacteria, and critical physicochemical parameters for predicting and preventing pathogen outbreaks in mariculture. |
| format | Article |
| id | doaj-art-2117fd885c984970ae4d3ce68c6d2e8e |
| institution | OA Journals |
| issn | 2296-7745 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Marine Science |
| spelling | doaj-art-2117fd885c984970ae4d3ce68c6d2e8e2025-08-20T02:33:19ZengFrontiers Media S.A.Frontiers in Marine Science2296-77452025-05-011210.3389/fmars.2025.15811901581190Seasonal dynamics of microbial communities link to summer-autumn aquaculture disease outbreaks in Sanggou BayLongfei Lu0Longfei Lu1Longfei Lu2Lingfang Ni3Lingfang Ni4Chunxiang Ai5Dongdong Zhang6Dongdong Zhang7Pengfei Zheng8Xuejing Li9Xin Liu10Hongyue Dang11State Key Laboratory of Marine Environmental Science, Fujian Key Laboratory of Marine Carbon Sequestration, College of Ocean and Earth Sciences, Xiamen University, Xiamen, Fujian, ChinaKey Laboratory of Tropical Marine Ecosystem and Bioresource, Fourth Institute of Oceanography, Ministry of Natural Resources, Beihai, Guangxi, ChinaWeihai Changqing Ocean Science Technology CO., Ltd., Weihai, Shandong, ChinaInstitute of Marine Biology and Pharmacology, Ocean College, Zhejiang University, Zhoushan, Zhejiang, ChinaDonghai Laboratory, Zhoushan, Zhejiang, ChinaState Key Laboratory of Marine Environmental Science, Fujian Key Laboratory of Marine Carbon Sequestration, College of Ocean and Earth Sciences, Xiamen University, Xiamen, Fujian, ChinaInstitute of Marine Biology and Pharmacology, Ocean College, Zhejiang University, Zhoushan, Zhejiang, ChinaDonghai Laboratory, Zhoushan, Zhejiang, ChinaLaboratory of Beibu Gulf Ocean Big Data Application, Fourth Institute of Oceanography, Ministry of Natural Resources, Beihai, Guangxi, ChinaState Key Laboratory of Marine Environmental Science, Fujian Key Laboratory of Marine Carbon Sequestration, College of Ocean and Earth Sciences, Xiamen University, Xiamen, Fujian, ChinaInstitute of Biotechnology, Beijing Academy of Agriculture and Forestry Sciences, Beijing, ChinaState Key Laboratory of Marine Environmental Science, Fujian Key Laboratory of Marine Carbon Sequestration, College of Ocean and Earth Sciences, Xiamen University, Xiamen, Fujian, ChinaMarine microorganisms play a vital role in aquaculture by influencing water quality and the health of cultured species. Relative to conventional mono-species aquaculture, integrated multi-trophic aquaculture is more environmentally friendly and economically sustainable. However, the temporospatial dynamics of the microbial community in different aquaculture modes and their roles in the seasonal diseases of aquacultural organisms are largely unknown. Here, the seawater bacterial communities and potential pathogens were investigated over thirteen months in three different aquaculture types in Sanggou Bay, a typical maricultural area with nearly 60 years of history. Seasonality played a primary role, while aquaculture type played a subtle role in shaping the bacterioplankton community. Diverse potential pathogens were identified, and r-strategist bacteria, most of which were opportunistic pathogens and typified by Vibrio species, increased and dominated in late summer and autumn, a period of high-risk disease outbreaks in mariculture organisms. Network analyses indicated that the increase in r-strategist bacteria reduced the complexity of microbial interactions, and Vibrio halioticoli (OTU1389), a hub species with extensive positive correlations to other Vibrio OTUs, likely contributed to the increase of pathogenic vibrios due to its macroalgae degradation capability. The major potential pathogenic Vibrio OTUs were further corroborated by genome analyses and environmental simulation experiments using pathogenic Vibrio isolates, including two new species. Moreover, we found seawater dissolved oxygen, temperature, and transparency correlated significantly with the bacterioplankton temporospatial dynamics and the seasonal outbreaks of bacterial pathogens. Our results emphasize the necessity of synchronically monitoring the bacterial community, its pathogens-stimulating species, such as V. halioticoli and other macroalgae-degrading bacteria, and critical physicochemical parameters for predicting and preventing pathogen outbreaks in mariculture.https://www.frontiersin.org/articles/10.3389/fmars.2025.1581190/fullseawater bacterial communitymonthly dynamicsbacterial pathogensseasonal diseasesVibriomarine deoxygenation |
| spellingShingle | Longfei Lu Longfei Lu Longfei Lu Lingfang Ni Lingfang Ni Chunxiang Ai Dongdong Zhang Dongdong Zhang Pengfei Zheng Xuejing Li Xin Liu Hongyue Dang Seasonal dynamics of microbial communities link to summer-autumn aquaculture disease outbreaks in Sanggou Bay Frontiers in Marine Science seawater bacterial community monthly dynamics bacterial pathogens seasonal diseases Vibrio marine deoxygenation |
| title | Seasonal dynamics of microbial communities link to summer-autumn aquaculture disease outbreaks in Sanggou Bay |
| title_full | Seasonal dynamics of microbial communities link to summer-autumn aquaculture disease outbreaks in Sanggou Bay |
| title_fullStr | Seasonal dynamics of microbial communities link to summer-autumn aquaculture disease outbreaks in Sanggou Bay |
| title_full_unstemmed | Seasonal dynamics of microbial communities link to summer-autumn aquaculture disease outbreaks in Sanggou Bay |
| title_short | Seasonal dynamics of microbial communities link to summer-autumn aquaculture disease outbreaks in Sanggou Bay |
| title_sort | seasonal dynamics of microbial communities link to summer autumn aquaculture disease outbreaks in sanggou bay |
| topic | seawater bacterial community monthly dynamics bacterial pathogens seasonal diseases Vibrio marine deoxygenation |
| url | https://www.frontiersin.org/articles/10.3389/fmars.2025.1581190/full |
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