Determining the trophic transfer of metal(loid)s and arsenic speciation in freshwater aquatic organisms by quantifying diet compositions
文献类型：期刊论文
| 作者 | Yang, Fen; Wei, Chaoyang; Zhang, Huan1; Yang, Xiao |
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2023-07-01 |
| 卷号 | 329页码:138600 |
| ISSN号 | 0045-6535 |
| 关键词 | Diet composition Stable isotopes metal(loid) contamination MixSIAR model Biomagnification factor |
| DOI | 10.1016/j.chemosphere.2023.138600 |
| 文献子类 | Article |
| 英文摘要 | Bioaccumulation through diet is the predominant source of metal(loid)s in fishes; however, the trophic transfer of metal(loid)s from the diet to aquatic organisms remains largely unclear. In this study, aquatic organisms and five potential food sources (leaf litter, coarse and fine particulate organic matter (CPOM and FPOM, respectively), epilithon and fish) were collected around the Shimen Realgar Mine of China. Stomach content analysis and stable nitrogen and carbon isotope analysis, combined with a new Bayesian mixing model (MixSIAR), were used to quantify diet compositions of aquatic organisms. The delta 13C and delta 15N values varied among fish sizes and sampling sites and were probably related to the diet shift of aquatic organisms. The MixSIAR modelling results showed that the aquatic organisms' food sources were mainly composed of FPOM (9%-68%) and epilithon (15%-65%), with leaf litter, CPOM and fish accounting for smaller proportions (2%-30%). Concentrations ranged from 0.91 to 1298 mg/kg for As, 0.01-1.30 mg/kg for Cd, 0.12-37.79 mg/kg for Pb, 0.63-1158 mg/kg for Cr, 1.22-411 mg/kg for Cu, 0.82-1772 mg/kg for Mn, 0.31-542 mg/kg for Ni and 21.84-1414 mg/kg for Zn in all the collected samples, including the aquatic organisms and the relevant food sources. The metal(loid) concentrations in the CPOM, FPOM and epilithon were significantly higher than those in aquatic organisms and leaf litter. In addition, the biomagnification factors were all less than 1, indicating a biodilution from diet to freshwater organisms. The predominant As species were organic As in aquatic organisms, while inorganic As was common in their food sources, indicating that As biotransformation occurred within the freshwater food chain. |
| 学科主题 | Environmental Sciences & Ecology |
| WOS关键词 | FOOD-CHAIN ; STOMACH CONTENT ; STABLE-ISOTOPES ; TRACE-ELEMENTS ; HEAVY-METALS ; PARANA RIVER ; FISH ; BIOACCUMULATION ; LAKE ; BIOTRANSFORMATION |
| 语种 | 英语 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/193477]  |
| 专题 | 陆地表层格局与模拟院重点实验室_外文论文 |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing, Peoples R China 2.Sino Japan Friendship Ctr Environm Protect, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Fen,Wei, Chaoyang,Zhang, Huan,et al. Determining the trophic transfer of metal(loid)s and arsenic speciation in freshwater aquatic organisms by quantifying diet compositions[J]. CHEMOSPHERE,2023,329:138600. |
| APA | Yang, Fen,Wei, Chaoyang,Zhang, Huan,&Yang, Xiao.(2023).Determining the trophic transfer of metal(loid)s and arsenic speciation in freshwater aquatic organisms by quantifying diet compositions.CHEMOSPHERE,329,138600. |
| MLA | Yang, Fen,et al."Determining the trophic transfer of metal(loid)s and arsenic speciation in freshwater aquatic organisms by quantifying diet compositions".CHEMOSPHERE 329(2023):138600. |
入库方式： OAI收割
来源：地理科学与资源研究所
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