Dramatic effect of extreme rainfall event and storm on microbial community dynamics in a subtropical coastal region.
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| Main Authors: | , , , , , , , , , |
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| Format: | Artículo científico |
| Language: | en |
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The Science of the total environment
2025
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| _version_ | 1868266252644909056 |
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| author | Olivia, Madeline Annabel, Clara Natalie Chen, Patrichka Wei-Yi Hsieh, Chih-Hao Chang, Feng-Hsun Ho, Pei-Chi Chien, Chia-Te Chao, Chien-Fu Mukhanov, Vladimir Tsai, An-Yi |
| author_facet | Olivia, Madeline Annabel, Clara Natalie Chen, Patrichka Wei-Yi Hsieh, Chih-Hao Chang, Feng-Hsun Ho, Pei-Chi Chien, Chia-Te Chao, Chien-Fu Mukhanov, Vladimir Tsai, An-Yi Olivia, Madeline Annabel, Clara Natalie Chen, Patrichka Wei-Yi Hsieh, Chih-Hao Chang, Feng-Hsun Ho, Pei-Chi Chien, Chia-Te Chao, Chien-Fu Mukhanov, Vladimir Tsai, An-Yi |
| collection | PubMed - marine biology |
| contents | Dramatic effect of extreme rainfall event and storm on microbial community dynamics in a subtropical coastal region. Olivia, Madeline Annabel, Clara Natalie Chen, Patrichka Wei-Yi Hsieh, Chih-Hao Chang, Feng-Hsun Ho, Pei-Chi Chien, Chia-Te Chao, Chien-Fu Mukhanov, Vladimir Tsai, An-Yi Taiwan Microbiota Cyclonic Storms Rain Food Chain Extreme Weather Climate Change Environmental Monitoring Bacteria Extreme weather events, such as heavy rainfall and typhoons, are becoming more frequent due to climate change and can significantly impact coastal microbial communities. This study examines the short-term alterations in microbial food webs-viruses, bacteria, picophytoplankton, nanoflagellates, ciliates, and diatom-following Typhoon Krathon in Taiwan's coastal waters in October 2024. Daily in situ sampling revealed a significant post-typhoon increased in viral, nanoflagellate, and Synechococcus spp. abundance. Furthermore, viral, Synechococcus spp., and nanoflagellate abundance increased by approximately 4.2 to 12.8-fold, 33.3 to 160 fold, and 0.5 to 9.4 fold in response to these weather events, compared to periods pre-typhoon, respectively. Modified dilution experiments showed that, before the typhoon, nanoflagellate grazing was the major cause of bacterial mortality, while viral lysis was the main cause of Synechococcus spp. mortality. Post-typhoon, there was a notable shift, with nanoflagellate grazing increasing mortality rates of bacteria and Synechococcus spp., suggesting that grazing became the dominant top-down control mechanism after the disturbance. Our findings suggest that extreme weather events shift microbial mortality dynamics, increasing the role of grazing in controlling microbial populations, with potential implications for carbon cycling in coastal ecosystems. |
| format | Artículo científico |
| id | pubmed_39837116 |
| institution | PubMed |
| language | en |
| publishDate | 2025 |
| publisher | The Science of the total environment |
| record_format | pubmed |
| spellingShingle | Dramatic effect of extreme rainfall event and storm on microbial community dynamics in a subtropical coastal region. Olivia, Madeline Annabel, Clara Natalie Chen, Patrichka Wei-Yi Hsieh, Chih-Hao Chang, Feng-Hsun Ho, Pei-Chi Chien, Chia-Te Chao, Chien-Fu Mukhanov, Vladimir Tsai, An-Yi Taiwan Microbiota Cyclonic Storms Rain Food Chain Extreme Weather Climate Change Environmental Monitoring Bacteria Dramatic effect of extreme rainfall event and storm on microbial community dynamics in a subtropical coastal region. Olivia, Madeline Annabel, Clara Natalie Chen, Patrichka Wei-Yi Hsieh, Chih-Hao Chang, Feng-Hsun Ho, Pei-Chi Chien, Chia-Te Chao, Chien-Fu Mukhanov, Vladimir Tsai, An-Yi Taiwan Microbiota Cyclonic Storms Rain Food Chain Extreme Weather Climate Change Environmental Monitoring Bacteria Extreme weather events, such as heavy rainfall and typhoons, are becoming more frequent due to climate change and can significantly impact coastal microbial communities. This study examines the short-term alterations in microbial food webs-viruses, bacteria, picophytoplankton, nanoflagellates, ciliates, and diatom-following Typhoon Krathon in Taiwan's coastal waters in October 2024. Daily in situ sampling revealed a significant post-typhoon increased in viral, nanoflagellate, and Synechococcus spp. abundance. Furthermore, viral, Synechococcus spp., and nanoflagellate abundance increased by approximately 4.2 to 12.8-fold, 33.3 to 160 fold, and 0.5 to 9.4 fold in response to these weather events, compared to periods pre-typhoon, respectively. Modified dilution experiments showed that, before the typhoon, nanoflagellate grazing was the major cause of bacterial mortality, while viral lysis was the main cause of Synechococcus spp. mortality. Post-typhoon, there was a notable shift, with nanoflagellate grazing increasing mortality rates of bacteria and Synechococcus spp., suggesting that grazing became the dominant top-down control mechanism after the disturbance. Our findings suggest that extreme weather events shift microbial mortality dynamics, increasing the role of grazing in controlling microbial populations, with potential implications for carbon cycling in coastal ecosystems. |
| title | Dramatic effect of extreme rainfall event and storm on microbial community dynamics in a subtropical coastal region. |
| topic | Taiwan Microbiota Cyclonic Storms Rain Food Chain Extreme Weather Climate Change Environmental Monitoring Bacteria |
| url | https://pubmed.ncbi.nlm.nih.gov/39837116/ |