Nutrient and trace metal dynamics driving eutrophication in the Cox's Bazar Coast of the Bay of Bengal, Bangladesh
文献类型：期刊论文
| 作者 | Rahman, Md. Abdur1,2; Yeasmin, Munjira2,3; Lu, Yuxi1; Islam, Md. Azharul4; Rahman, Md. Mustafizur4; Kormoker, Tapos5; Pan, Dawei1,2 |
| 刊名 | MARINE POLLUTION BULLETIN
 |
| 出版日期 | 2025-12-01 |
| 卷号 | 221页码:16 |
| 关键词 | Nutrients Trace metals Eutrophication Spatial-temporal distribution Bay of Bengal |
| ISSN号 | 0025-326X |
| DOI | 10.1016/j.marpolbul.2025.118563 |
| 通讯作者 | Lu, Yuxi(yxlu@yic.ac.cn) ; Pan, Dawei(dwpan@yic.ac.cn) |
| 英文摘要 | Coastal eutrophication, driven by nutrients and trace metal enrichment, poses a significant threat to marine ecosystems worldwide. This study investigated the nutrient and trace metal dynamics driving eutrophication along the Cox's Bazar Coast of the Bay of Bengal (BoB), Bangladesh. Summer surface seawater samples were collected from 12 strategically located stations between 2021 and 2023 and analyzed for physicochemical parameters, dissolved nutrients, and trace metals using standard spectrophotometric and ICP-MS techniques. The results revealed marked spatial and temporal variations in nutrient concentrations (NO3-: 0.01-0.066 mg/L, NO2-: 0.004-0.035 mg/L, NH4+: 0.014-0.096 mg/L, PO43-: 0.273-1.243 mg/L, DSi: 0.011-0.073 mg/L), trace metals (Fe: 0.127-0.362 mg/L, Mn: 0.021-0.086 mg/L, Cu: 0.025-0.075 mg/L, Zn: 0.011-0.221 mg/L) and eutrophication (EI: 1.674-25.982), with nearshore stations exhibiting higher levels of concertation enrichment compared to offshore areas. Elevated nutrient levels, particularly nitrogen and phosphorus species, along with high concentrations of trace metals, were strongly correlated with anthropogenic inputs from industrial discharge, urban runoff, and aquaculture activities. PCA further identified two key components representing combined influences of trace metals with PO4 3-and DSi, and a nitrogen-based nutrient factor. The integrated findings suggested that natural processes and intensified human activities drive eutrophication in the region, potentially promoting harmful algal blooms and threatening coastal ecosystem stability. This study underscored the need for effective management and pollution control strategies to mitigate nutrient overload and preserve the ecological integrity of the BoB. |
| WOS关键词 | SURFACE SEDIMENTS ; DISSOLVED-OXYGEN ; ORGANIC-CARBON ; SISHILI BAY ; YELLOW SEA ; BOHAI SEA ; WATER ; RIVER ; CONTAMINATION ; PHYTOPLANKTON |
| WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology |
| 语种 | 英语 |
| WOS记录号 | WOS:001579114800005 |
| 资助机构 | National Natural Science Foundation of China ; Natural Science Foundation of Shandong Province ; Taishan Scholar Project of Shandong Province ; Special Fund for the Scholar Program of Yantai City |
| 源URL | [http://ir.yic.ac.cn/handle/133337/41480]  |
| 专题 | 烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室 |
| 通讯作者 | Lu, Yuxi; Pan, Dawei |
| 作者单位 | 1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Res Ctr Coastal Environm Engn Technol Shandong Pro, Shandong Key Lab Coastal Environm Proc, Yantai 264003, Peoples R China 2.Univ Chinese Acad Sci, Coll Marine Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Muping Coastal Environm Res Stn, Yantai 264003, Peoples R China 4.Bangladesh Agr Univ, Dept Environm Sci, Mymensingh 2202, Bangladesh 5.Educ Univ Hong Kong, Dept Sci & Environm Studies, Tai Po, Hong Kong 999077, Peoples R China |
| 推荐引用方式 GB/T 7714 | Rahman, Md. Abdur,Yeasmin, Munjira,Lu, Yuxi,et al. Nutrient and trace metal dynamics driving eutrophication in the Cox's Bazar Coast of the Bay of Bengal, Bangladesh[J]. MARINE POLLUTION BULLETIN,2025,221:16. |
| APA | Rahman, Md. Abdur.,Yeasmin, Munjira.,Lu, Yuxi.,Islam, Md. Azharul.,Rahman, Md. Mustafizur.,...&Pan, Dawei.(2025).Nutrient and trace metal dynamics driving eutrophication in the Cox's Bazar Coast of the Bay of Bengal, Bangladesh.MARINE POLLUTION BULLETIN,221,16. |
| MLA | Rahman, Md. Abdur,et al."Nutrient and trace metal dynamics driving eutrophication in the Cox's Bazar Coast of the Bay of Bengal, Bangladesh".MARINE POLLUTION BULLETIN 221(2025):16. |
入库方式： OAI收割
来源：烟台海岸带研究所
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