Potential bioremediation effects of seaweed Gracilaria lemaneiformis on heavy metals in coastal sediment from a typical mariculture zone
文献类型：期刊论文
| 作者 | Luo, Hongtian3; Wang, Qing; Liu, Zhiwei; Wang, Shuangyao; Long, Aimin1,2; Yang, Yufeng3 |
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2020 |
| 卷号 | 245页码:125636 |
| 关键词 | Bioremediation Gracilaria lemaneiformis Heavy metal Sediment Indicator |
| ISSN号 | 0045-6535 |
| 英文摘要 | Seaweeds are good bio-monitors of heavy metals pollution in coastal seawater. In the present study, the potential bioremediation effects of cultivated Gracilaria lemaneiformis on heavy metals in Nan'ao coastal sediment from a typical mariculture zone, South China were evaluated. Sediment samples were collected from five different zones (Gracilaria cultivation zone, G; Fish culture zone, F; Shellfish culture zone, S; Transition zone, T; Control zone, C) from December 2014 to July 2015. The concentrations of Cd, Pb, Cu, and Zn in the sediments were significantly different among the various types of mariculture areas. The concentrations varied widely: Cd (0.04-1.02) mu g g(-1); Cu (1.19-37.70) mu g g(-1); Pb (8.45-74.45) mu g g(-1); Zn (36.80-201.24) mu g g(-1). The lowest heavy metal concentrations in the sediment were occurred at Gracilaria cultivation zone, while higher concentrations occurred at control zones and fish culture zones. The pollution load index, principal components and cluster analysis showed that heavy metal concentrations were the highest at fish culture zone, while the concentrations were the lowest at Gracilaria cultivation zone, and Gracilaria cultivation affects the heavy metals in the sediments. Gracilaria had strong adsorption capacities for heavy metals from seawater, showing the highest heavy metal Bioconcentration Factors in May (higher seaweed biomass period). Consequently, the results suggested that Gracilaria cultivation influences the heavy metal concentrations in sediments from the typical coastal mariculture zone. Gracilaria cultivation has the potential to bioremediate heavy metals in the coastal sediments. Therefore, Gracilaria cultivation can add environmental advantages and ecological values to coastal mariculture zones. (C) 2019 Elsevier Ltd. All rights reserved. |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/18334]  |
| 专题 | 南海海洋研究所_热带海洋环境国家重点实验室(LTO) |
| 作者单位 | 1.Jinan Univ, Guangdong Higher Educ Inst, Key Lab Aquat Eutrophicat & Control Harmful Algal, Inst Hydrobiol, Guangzhou, Peoples R China 2.Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Ocean Environm LTO, Guangzhou, Peoples R China 3.Univ Chinese Acad Sci, Sch Earth Sci, Beijing, Peoples R China 4.Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai 519000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Luo, Hongtian,Wang, Qing,Liu, Zhiwei,et al. Potential bioremediation effects of seaweed Gracilaria lemaneiformis on heavy metals in coastal sediment from a typical mariculture zone[J]. CHEMOSPHERE,2020,245:125636. |
| APA | Luo, Hongtian,Wang, Qing,Liu, Zhiwei,Wang, Shuangyao,Long, Aimin,&Yang, Yufeng.(2020).Potential bioremediation effects of seaweed Gracilaria lemaneiformis on heavy metals in coastal sediment from a typical mariculture zone.CHEMOSPHERE,245,125636. |
| MLA | Luo, Hongtian,et al."Potential bioremediation effects of seaweed Gracilaria lemaneiformis on heavy metals in coastal sediment from a typical mariculture zone".CHEMOSPHERE 245(2020):125636. |
入库方式： OAI收割
来源：南海海洋研究所
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