Seaweed (Porphyra) cultivation enhances production of autochthonous refractory dissolved organic matter in coastal ecosystems
Seaweed cultivation contributes to coastal carbon sequestration making it a compelling strategy to mitigate global climate change. Porphyra (commonly known as nori) is an economically important seaweed known to have high release rates for biogenic dissolved and particulate organic matter (DOM and PO...
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| Format: | Article |
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Frontiers Media S.A.
2025-02-01
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| Series: | Frontiers in Marine Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmars.2025.1529148/full |
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| author | Ting Wang Ting Wang Jiajun Xu Jiajun Xu Randy A. Dahlgren Qiang Liu Yang Jia Yang Jia Binbin Chen Binbin Chen Hanqin Xu Hanqin Xu Zengling Ma Zengling Ma Liyin Qu Liyin Qu |
| author_facet | Ting Wang Ting Wang Jiajun Xu Jiajun Xu Randy A. Dahlgren Qiang Liu Yang Jia Yang Jia Binbin Chen Binbin Chen Hanqin Xu Hanqin Xu Zengling Ma Zengling Ma Liyin Qu Liyin Qu |
| author_sort | Ting Wang |
| collection | DOAJ |
| description | Seaweed cultivation contributes to coastal carbon sequestration making it a compelling strategy to mitigate global climate change. Porphyra (commonly known as nori) is an economically important seaweed known to have high release rates for biogenic dissolved and particulate organic matter (DOM and POM). However, the impact of Porphyra cultivation on coastal organic matter dynamics remains unclear. To fill this knowledge gap, we conducted investigations examining the quantity and optical properties of DOM and POM, microbial community structures and relevant environmental factors along a continuum from a subtropical river through its adjacent coastal Porphyra cultivation zone during the cultivation and non-cultivation periods. Dissolved organic carbon (DOC) concentration was significantly elevated during the cultivation versus non-cultivation period, while particulate organic carbon (POC) concentration decreased, thereby resulting in a higher DOC/POC ratio in the water column. Endmember mixing analysis further suggested that autochthonous organic matter dominated in the coastal cultivation zone during both periods, with limited inputs of terrestrial organic carbon. Redundancy analysis revealed that more microbial modules mediated organic matter transformations during the cultivation period, leading to a 169% higher estuarine addition of microbially-sourced humic-like C3 compared to the non-cultivation period. Our findings demonstrate that Porphyra cultivation enhanced coastal carbon sequestration by promoting the autochthonous production and transformation of refractory DOM, which has important implications for the sustainable management and development of coastal blue carbon strategies. |
| format | Article |
| id | doaj-art-c256f6b6cf2c43bf9d611035178dd5fb |
| institution | Kabale University |
| issn | 2296-7745 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Marine Science |
| spelling | doaj-art-c256f6b6cf2c43bf9d611035178dd5fb2025-02-06T05:21:45ZengFrontiers Media S.A.Frontiers in Marine Science2296-77452025-02-011210.3389/fmars.2025.15291481529148Seaweed (Porphyra) cultivation enhances production of autochthonous refractory dissolved organic matter in coastal ecosystemsTing Wang0Ting Wang1Jiajun Xu2Jiajun Xu3Randy A. Dahlgren4Qiang Liu5Yang Jia6Yang Jia7Binbin Chen8Binbin Chen9Hanqin Xu10Hanqin Xu11Zengling Ma12Zengling Ma13Liyin Qu14Liyin Qu15Southern Zhejiang Key Laboratory of Crop Breeding, Wenzhou Academy of Agricultural Sciences, Wenzhou, ChinaInstitute of Eco-Environmental Sciences, Wenzhou Academy of Agricultural Sciences, Wenzhou, ChinaNational and Local Joint Engineering Research Center of Ecological Treatment Technology for Urban Water Pollution, Wenzhou University, Wenzhou, ChinaZhejiang Provincial Key Lab for Subtropical Water Environment and Marine Biological Resources Protection, Wenzhou University, Wenzhou, ChinaDepartment of Land, Air and Water Resources, University of California, Davis, Davis, CA, United StatesKey Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, ChinaNational and Local Joint Engineering Research Center of Ecological Treatment Technology for Urban Water Pollution, Wenzhou University, Wenzhou, ChinaZhejiang Provincial Key Lab for Subtropical Water Environment and Marine Biological Resources Protection, Wenzhou University, Wenzhou, ChinaNational and Local Joint Engineering Research Center of Ecological Treatment Technology for Urban Water Pollution, Wenzhou University, Wenzhou, ChinaZhejiang Provincial Key Lab for Subtropical Water Environment and Marine Biological Resources Protection, Wenzhou University, Wenzhou, ChinaNational and Local Joint Engineering Research Center of Ecological Treatment Technology for Urban Water Pollution, Wenzhou University, Wenzhou, ChinaZhejiang Provincial Key Lab for Subtropical Water Environment and Marine Biological Resources Protection, Wenzhou University, Wenzhou, ChinaNational and Local Joint Engineering Research Center of Ecological Treatment Technology for Urban Water Pollution, Wenzhou University, Wenzhou, ChinaZhejiang Provincial Key Lab for Subtropical Water Environment and Marine Biological Resources Protection, Wenzhou University, Wenzhou, ChinaNational and Local Joint Engineering Research Center of Ecological Treatment Technology for Urban Water Pollution, Wenzhou University, Wenzhou, ChinaZhejiang Provincial Key Lab for Subtropical Water Environment and Marine Biological Resources Protection, Wenzhou University, Wenzhou, ChinaSeaweed cultivation contributes to coastal carbon sequestration making it a compelling strategy to mitigate global climate change. Porphyra (commonly known as nori) is an economically important seaweed known to have high release rates for biogenic dissolved and particulate organic matter (DOM and POM). However, the impact of Porphyra cultivation on coastal organic matter dynamics remains unclear. To fill this knowledge gap, we conducted investigations examining the quantity and optical properties of DOM and POM, microbial community structures and relevant environmental factors along a continuum from a subtropical river through its adjacent coastal Porphyra cultivation zone during the cultivation and non-cultivation periods. Dissolved organic carbon (DOC) concentration was significantly elevated during the cultivation versus non-cultivation period, while particulate organic carbon (POC) concentration decreased, thereby resulting in a higher DOC/POC ratio in the water column. Endmember mixing analysis further suggested that autochthonous organic matter dominated in the coastal cultivation zone during both periods, with limited inputs of terrestrial organic carbon. Redundancy analysis revealed that more microbial modules mediated organic matter transformations during the cultivation period, leading to a 169% higher estuarine addition of microbially-sourced humic-like C3 compared to the non-cultivation period. Our findings demonstrate that Porphyra cultivation enhanced coastal carbon sequestration by promoting the autochthonous production and transformation of refractory DOM, which has important implications for the sustainable management and development of coastal blue carbon strategies.https://www.frontiersin.org/articles/10.3389/fmars.2025.1529148/fullPorphyracoastal cultivation zoneorganic matter transformationrefractory dissolved organic matteroptical analysisblue carbon strategies |
| spellingShingle | Ting Wang Ting Wang Jiajun Xu Jiajun Xu Randy A. Dahlgren Qiang Liu Yang Jia Yang Jia Binbin Chen Binbin Chen Hanqin Xu Hanqin Xu Zengling Ma Zengling Ma Liyin Qu Liyin Qu Seaweed (Porphyra) cultivation enhances production of autochthonous refractory dissolved organic matter in coastal ecosystems Frontiers in Marine Science Porphyra coastal cultivation zone organic matter transformation refractory dissolved organic matter optical analysis blue carbon strategies |
| title | Seaweed (Porphyra) cultivation enhances production of autochthonous refractory dissolved organic matter in coastal ecosystems |
| title_full | Seaweed (Porphyra) cultivation enhances production of autochthonous refractory dissolved organic matter in coastal ecosystems |
| title_fullStr | Seaweed (Porphyra) cultivation enhances production of autochthonous refractory dissolved organic matter in coastal ecosystems |
| title_full_unstemmed | Seaweed (Porphyra) cultivation enhances production of autochthonous refractory dissolved organic matter in coastal ecosystems |
| title_short | Seaweed (Porphyra) cultivation enhances production of autochthonous refractory dissolved organic matter in coastal ecosystems |
| title_sort | seaweed porphyra cultivation enhances production of autochthonous refractory dissolved organic matter in coastal ecosystems |
| topic | Porphyra coastal cultivation zone organic matter transformation refractory dissolved organic matter optical analysis blue carbon strategies |
| url | https://www.frontiersin.org/articles/10.3389/fmars.2025.1529148/full |
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