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Macroalgae bloom decay decreases the sediment organic carbon sequestration potential in tropical seagrass meadows of the South China Sea
Liu, Songlin; Jiang, Zhijian; Wu, Yunchao; Deng, Yiqin2; Chen, Qiming1; Zhao, Chunyu1; Cui, Lijun1; Huang, Xiaoping1
2019
Source PublicationMARINE POLLUTION BULLETIN
ISSN0025-326X
Volume138Pages:598
AbstractSeagrass meadows are experiencing worldwide declines mainly because of nutrient enrichment, which always result in macroalgae bloom and consequently periodic collapse and decomposition. However, effects of macroalgae decay on the sediment organic carbon (SOC) sequestration capacity remain unknown. Depending on the macroalgae biomass in eutrophic seagrass meadows of South China Sea, we carried out a laboratory chamber experiment to investigate the sediment labile organic carbon (OC) compositions and the influencing SOC transformation enzyme activity variations of seagrass meadows in response to common macroalgae bloom species (Cladophora spp.) decomposition. Although the dehydrogenase and beta-glucosidase activities were not affected by macroalgae decomposition, the macroalgae decomposition significantly elevated the salt-extractable carbon (SEC) content, SEC/SOC, levels of invertase and polyphenol oxidase activities, and the CO2 release. Overall, this study indicates that macroalgae decomposition stimulates the SOC transformation, and therefore, it is not benefit for SOC sequestration within seagrass meadows of the South China Sea.
DepartmentLMB
KeywordSeagrass meadows Macroalgae boom Sediment organic carbon Composition Enzyme activities
DOI10.1016/j.marpolbul.2018.12.009
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/17926
Collection中科院海洋生物资源可持续利用重点实验室
Affiliation1.Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Trop Marine Bioresources & Ecol, Guangzhou 510301, Guangdong, Peoples R China
2.Univ Chinese Acad Sci, Coll Earth Sci, Beijing 100049, Peoples R China
3.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Minist Agr & Rural Affairs, Key Lab South China Sea Fishery Resources Exploit, Guangzhou 510300, Guangdong, Peoples R China
Recommended Citation
GB/T 7714
Liu, Songlin,Jiang, Zhijian,Wu, Yunchao,et al. Macroalgae bloom decay decreases the sediment organic carbon sequestration potential in tropical seagrass meadows of the South China Sea[J]. MARINE POLLUTION BULLETIN,2019,138:598, 603.
APA Liu, Songlin.,Jiang, Zhijian.,Wu, Yunchao.,Deng, Yiqin.,Chen, Qiming.,...&Huang, Xiaoping.(2019).Macroalgae bloom decay decreases the sediment organic carbon sequestration potential in tropical seagrass meadows of the South China Sea.MARINE POLLUTION BULLETIN,138,598.
MLA Liu, Songlin,et al."Macroalgae bloom decay decreases the sediment organic carbon sequestration potential in tropical seagrass meadows of the South China Sea".MARINE POLLUTION BULLETIN 138(2019):598.
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