Live benthic foraminifera in the Yellow Sea and the East China Sea: vertical distribution, nitrate storage, and potential denitrification
文献类型：期刊论文
| 作者 | Xu, ZM; Liu, SM; Xiang, R; Song, GD; sumeiliu@ouc.edu.cn |
| 刊名 | MARINE ECOLOGY PROGRESS SERIES
 |
| 出版日期 | 2017 |
| 卷号 | 571页码:65-81 |
| 关键词 | Live Benthic Foraminifera Vertical Distribution Intracellular Nitrate Potential Denitrification Yellow Sea East China Sea |
| 英文摘要 | Benthic foraminifera were investigated to determine their vertical distribution, nitrate storage, and potential denitrification in the Yellow Sea (YS) and the East China Sea (ECS). The phytodetritus content and freshness as well as sediment redox conditions were key factors determining the vertical distribution of foraminifera in sediments of the YS and the ECS. The intracellular nitrate (ICNO3) concentrations of Nonionella stella, Hanzawaia nipponica, Bolivina robusta, Cancris auriculus, and Globobulimina pacifica ranged from 3 to 114 mM, which in some cases was several hundred-fold more than the pore water nitrate (PWNO3) concentrations. The genus Hanzawaia was for the first time reported to store ICNO3 (316 +/- 73 pmol ind.(-1); 11 +/- 3 mM). The significant correlation between the ICNO3 concentration and foraminiferal abundance (Pearson correlation: r = 0.401, p < 0.01, n = 60) suggested that foraminifera may have an important role in nitrate storage in the sediments. The foraminiferal intracellular nitrate (FINO3) pool ranged from 9 to 74% of the ICNO3 pool in sediments, indicating that nitrate may be stored by other sediment organisms (e.g. diatoms). The chlorophyll a concentration, chloroplastic pigment equivalents (CPE), and chlorophyll a:phaeopigment ratio were all significantly positively correlated with the ICNO3 concentration (Pearson correlation: r = 0.563, 0.603, and 0.457, respectively; p < 0.01; n = 60), indicating that phytodetritus (e.g. diatoms) might also contribute to sedimentary ICNO3. Potential foraminiferal denitrification rates ranged from 9 to 92 mu mol m(-2) d(-1) in the YS and the ECS, indicating that benthic foraminifera might play a role in sedimentary denitrification. |
| 资助项目 | MSG |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/16498]  |
| 专题 | 南海海洋研究所_中科院边缘海地质重点实验室 |
| 通讯作者 | sumeiliu@ouc.edu.cn |
| 推荐引用方式 GB/T 7714 | Xu, ZM,Liu, SM,Xiang, R,et al. Live benthic foraminifera in the Yellow Sea and the East China Sea: vertical distribution, nitrate storage, and potential denitrification[J]. MARINE ECOLOGY PROGRESS SERIES,2017,571:65-81. |
| APA | Xu, ZM,Liu, SM,Xiang, R,Song, GD,&sumeiliu@ouc.edu.cn.(2017).Live benthic foraminifera in the Yellow Sea and the East China Sea: vertical distribution, nitrate storage, and potential denitrification.MARINE ECOLOGY PROGRESS SERIES,571,65-81. |
| MLA | Xu, ZM,et al."Live benthic foraminifera in the Yellow Sea and the East China Sea: vertical distribution, nitrate storage, and potential denitrification".MARINE ECOLOGY PROGRESS SERIES 571(2017):65-81. |
入库方式： OAI收割
来源：南海海洋研究所
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