Seaweed burial mitigated the release of organic carbon and nutrients by regulating microbial activity
Seaweed debris is susceptible to being buried in sediments due to natural environmental changes and human activities. So far, the effect of buried seaweeds on the environment and its decomposition mechanism remains unclear. This study simulated the decomposition of seaweed Gracilariopsis lemaneiform...
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Veröffentlicht in: | Marine pollution bulletin 2024-11, Vol.208, p.116963, Article 116963 |
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creator | Xu, Lili Wang, Qing Ou, Xiaoli Zou, Ligong Liu, Chun Yang, Yufeng |
description | Seaweed debris is susceptible to being buried in sediments due to natural environmental changes and human activities. So far, the effect of buried seaweeds on the environment and its decomposition mechanism remains unclear. This study simulated the decomposition of seaweed Gracilariopsis lemaneiformis for 180 days with different burial depths (0 cm and 10 cm) and burial weights (10 g and 20 g). Our findings revealed that compared with Gracilariopsis decomposition on the sediment surface, the seaweed buried in sediment slowed down the release of N, P, and dissolved organic carbon (DOC) by enhancing the activity of diverse anaerobic microbes (i.e. Draconibacterium, Desulfuromusa, Sediminispirochaeta), which were associated with organic matter decomposition. The enhanced burial quantity of Gracilariopsis resulted in a 3.28 % increase in sediment OC and enriched the humification degree of DOC in seawater. These results highlight the role of seaweed burial in enhancing OC sequestration in marine environments.
[Display omitted]
•An indoor simulation of seaweed burial on the OC and nutrients was analyzed.•Seaweed buried in sediment mitigated the release of DOC and nutrients in seawater.•Buried seaweed increased the sediment OC pool and seawater DOM humification degree.•Seawater DOC concentration correlated with the quantity of buried seaweed.•Burial seaweed increased the relative abundance and diversity of anaerobic microbes. |
doi_str_mv | 10.1016/j.marpolbul.2024.116963 |
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[Display omitted]
•An indoor simulation of seaweed burial on the OC and nutrients was analyzed.•Seaweed buried in sediment mitigated the release of DOC and nutrients in seawater.•Buried seaweed increased the sediment OC pool and seawater DOM humification degree.•Seawater DOC concentration correlated with the quantity of buried seaweed.•Burial seaweed increased the relative abundance and diversity of anaerobic microbes.</description><identifier>ISSN: 0025-326X</identifier><identifier>ISSN: 1879-3363</identifier><identifier>EISSN: 1879-3363</identifier><identifier>DOI: 10.1016/j.marpolbul.2024.116963</identifier><identifier>PMID: 39299191</identifier><language>eng</language><publisher>England: Elsevier Ltd</publisher><subject>Carbon sequestration ; Environmental effect ; Microbes ; Seaweed ; Sediment burial ; Simulation experiment</subject><ispartof>Marine pollution bulletin, 2024-11, Vol.208, p.116963, Article 116963</ispartof><rights>2024 Elsevier Ltd</rights><rights>Copyright © 2024 Elsevier Ltd. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c247t-fedea259c9dab75d829c619a27d4bed09843e630c0c5ecd199e57e741d25826f3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.marpolbul.2024.116963$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/39299191$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Xu, Lili</creatorcontrib><creatorcontrib>Wang, Qing</creatorcontrib><creatorcontrib>Ou, Xiaoli</creatorcontrib><creatorcontrib>Zou, Ligong</creatorcontrib><creatorcontrib>Liu, Chun</creatorcontrib><creatorcontrib>Yang, Yufeng</creatorcontrib><title>Seaweed burial mitigated the release of organic carbon and nutrients by regulating microbial activity</title><title>Marine pollution bulletin</title><addtitle>Mar Pollut Bull</addtitle><description>Seaweed debris is susceptible to being buried in sediments due to natural environmental changes and human activities. So far, the effect of buried seaweeds on the environment and its decomposition mechanism remains unclear. This study simulated the decomposition of seaweed Gracilariopsis lemaneiformis for 180 days with different burial depths (0 cm and 10 cm) and burial weights (10 g and 20 g). Our findings revealed that compared with Gracilariopsis decomposition on the sediment surface, the seaweed buried in sediment slowed down the release of N, P, and dissolved organic carbon (DOC) by enhancing the activity of diverse anaerobic microbes (i.e. Draconibacterium, Desulfuromusa, Sediminispirochaeta), which were associated with organic matter decomposition. The enhanced burial quantity of Gracilariopsis resulted in a 3.28 % increase in sediment OC and enriched the humification degree of DOC in seawater. These results highlight the role of seaweed burial in enhancing OC sequestration in marine environments.
[Display omitted]
•An indoor simulation of seaweed burial on the OC and nutrients was analyzed.•Seaweed buried in sediment mitigated the release of DOC and nutrients in seawater.•Buried seaweed increased the sediment OC pool and seawater DOM humification degree.•Seawater DOC concentration correlated with the quantity of buried seaweed.•Burial seaweed increased the relative abundance and diversity of anaerobic microbes.</description><subject>Carbon sequestration</subject><subject>Environmental effect</subject><subject>Microbes</subject><subject>Seaweed</subject><subject>Sediment burial</subject><subject>Simulation experiment</subject><issn>0025-326X</issn><issn>1879-3363</issn><issn>1879-3363</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><recordid>eNqFkMtOwzAQRS0EoqXwC-AlmxQ_kjheVhUvqRILQGJnOfakuEqTYjug_j2uWrplNdLozJ2Zg9ANJVNKaHm3mq613_RtPbRTRlg-pbSUJT9BY1oJmXFe8lM0JoQVGWflxwhdhLAihAgm6DkaccmkpJKOEbyC_gGwuB680y1eu-iWOqZG_ATsoQUdAPcN7v1Sd85go33dd1h3FndD9A66GHC9TehyaHV03TJlGN_XuzRtovt2cXuJzhrdBrg61Al6f7h_mz9li5fH5_lskRmWi5g1YEGzQhppdS0KWzFpSio1EzavwRJZ5RxKTgwxBRhLpYRCgMipZUXFyoZP0O0-d-P7rwFCVGsXDLSt7qAfguKUCFqISsqEij2abg3BQ6M23iWpW0WJ2jlWK3V0rHaO1d5xmrw-LBnqNdjj3J_UBMz2AKRXvx14FUzyZMA6DyYq27t_l_wCBUyT9w</recordid><startdate>20241101</startdate><enddate>20241101</enddate><creator>Xu, Lili</creator><creator>Wang, Qing</creator><creator>Ou, Xiaoli</creator><creator>Zou, Ligong</creator><creator>Liu, Chun</creator><creator>Yang, Yufeng</creator><general>Elsevier Ltd</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20241101</creationdate><title>Seaweed burial mitigated the release of organic carbon and nutrients by regulating microbial activity</title><author>Xu, Lili ; Wang, Qing ; Ou, Xiaoli ; Zou, Ligong ; Liu, Chun ; Yang, Yufeng</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c247t-fedea259c9dab75d829c619a27d4bed09843e630c0c5ecd199e57e741d25826f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Carbon sequestration</topic><topic>Environmental effect</topic><topic>Microbes</topic><topic>Seaweed</topic><topic>Sediment burial</topic><topic>Simulation experiment</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Xu, Lili</creatorcontrib><creatorcontrib>Wang, Qing</creatorcontrib><creatorcontrib>Ou, Xiaoli</creatorcontrib><creatorcontrib>Zou, Ligong</creatorcontrib><creatorcontrib>Liu, Chun</creatorcontrib><creatorcontrib>Yang, Yufeng</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Marine pollution bulletin</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Xu, Lili</au><au>Wang, Qing</au><au>Ou, Xiaoli</au><au>Zou, Ligong</au><au>Liu, Chun</au><au>Yang, Yufeng</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Seaweed burial mitigated the release of organic carbon and nutrients by regulating microbial activity</atitle><jtitle>Marine pollution bulletin</jtitle><addtitle>Mar Pollut Bull</addtitle><date>2024-11-01</date><risdate>2024</risdate><volume>208</volume><spage>116963</spage><pages>116963-</pages><artnum>116963</artnum><issn>0025-326X</issn><issn>1879-3363</issn><eissn>1879-3363</eissn><abstract>Seaweed debris is susceptible to being buried in sediments due to natural environmental changes and human activities. So far, the effect of buried seaweeds on the environment and its decomposition mechanism remains unclear. This study simulated the decomposition of seaweed Gracilariopsis lemaneiformis for 180 days with different burial depths (0 cm and 10 cm) and burial weights (10 g and 20 g). Our findings revealed that compared with Gracilariopsis decomposition on the sediment surface, the seaweed buried in sediment slowed down the release of N, P, and dissolved organic carbon (DOC) by enhancing the activity of diverse anaerobic microbes (i.e. Draconibacterium, Desulfuromusa, Sediminispirochaeta), which were associated with organic matter decomposition. The enhanced burial quantity of Gracilariopsis resulted in a 3.28 % increase in sediment OC and enriched the humification degree of DOC in seawater. These results highlight the role of seaweed burial in enhancing OC sequestration in marine environments.
[Display omitted]
•An indoor simulation of seaweed burial on the OC and nutrients was analyzed.•Seaweed buried in sediment mitigated the release of DOC and nutrients in seawater.•Buried seaweed increased the sediment OC pool and seawater DOM humification degree.•Seawater DOC concentration correlated with the quantity of buried seaweed.•Burial seaweed increased the relative abundance and diversity of anaerobic microbes.</abstract><cop>England</cop><pub>Elsevier Ltd</pub><pmid>39299191</pmid><doi>10.1016/j.marpolbul.2024.116963</doi></addata></record> |
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subjects | Carbon sequestration Environmental effect Microbes Seaweed Sediment burial Simulation experiment |
title | Seaweed burial mitigated the release of organic carbon and nutrients by regulating microbial activity |
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