Comparative contribution of trophic transfer and biotransformation on arsenobetaine bioaccumulation in two marine fish
Zhang, Wei; Guo, Zhiqiang; Zhou, Yanyan; Chen, Lizhao; Zhang, Li; Zhang, L (reprint author), Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Trop Marine Bioresources & Ecol, Guangdong Prov Key Lab Appl Marine Biol, Guangzhou 510301, Guangdong, Peoples R China.
2016
发表期刊AQUATIC TOXICOLOGY
卷号179页码:65-71
摘要Marine fish can accumulate high arsenic (As) concentrations, with arsenobetaine (AsB) as the major species in the body. However, whether the high AsB accumulation in fish occurs mainly through trophic transfer from diet or biotransformation in the fish body remains unclear. This study investigated the trophic transfer and biotransformation of As in two marine fish (seabream Acanthopagrus schlegeli and grunt Terapon jarbua) fed artificial and clam diets for 28 d. The different diets contained different proportions of inorganic [As(III) and As(V)] and organic [methylarsenate (MMA), dimethylarsenate (DMA), and AsB] As compounds. Positive correlations were observed between the accumulated As concentrations and AsB concentrations in both fish, suggesting that AsB contributed to the accumulation of total As in marine fish. Based on the calculated total input of AsB and detected AsB concentrations in the muscle of the seabream and grunt, the ingested amounts of AsB accounted for 0.1-0.3%, 8.1-14.4% of detected AsB concentrations, respectively, in the muscle of seabream and grunt fish species, suggesting that AsB was mainly biotransformed versus trophically transferred in these marine fish. In summary, this study demonstrates that marine fish prefer to biotransform inorganic As forms into AsB, resulting in high bioaccumulation of total As. (C) 2016 Elsevier B.V. All rights reserved.
部门归属[Zhang, Wei; Guo, Zhiqiang; Zhou, Yanyan; Chen, Lizhao; Zhang, Li] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Trop Marine Bioresources & Ecol, Guangdong Prov Key Lab Appl Marine Biol, Guangzhou 510301, Guangdong, Peoples R China; [Zhou, Yanyan; Chen, Lizhao] Univ Chinese Acad Sci, Beijing 100049, Peoples R China ; LMB
关键词Arsenic Contribution Trophic Transfer Biotransformation Marine Fish
学科领域Marine & Freshwater Biology ; Toxicology
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/15282
专题中科院海洋生物资源可持续利用重点实验室
通讯作者Zhang, L (reprint author), Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Trop Marine Bioresources & Ecol, Guangdong Prov Key Lab Appl Marine Biol, Guangzhou 510301, Guangdong, Peoples R China.
推荐引用方式
GB/T 7714
Zhang, Wei,Guo, Zhiqiang,Zhou, Yanyan,et al. Comparative contribution of trophic transfer and biotransformation on arsenobetaine bioaccumulation in two marine fish[J]. AQUATIC TOXICOLOGY,2016,179:65-71.
APA Zhang, Wei,Guo, Zhiqiang,Zhou, Yanyan,Chen, Lizhao,Zhang, Li,&Zhang, L .(2016).Comparative contribution of trophic transfer and biotransformation on arsenobetaine bioaccumulation in two marine fish.AQUATIC TOXICOLOGY,179,65-71.
MLA Zhang, Wei,et al."Comparative contribution of trophic transfer and biotransformation on arsenobetaine bioaccumulation in two marine fish".AQUATIC TOXICOLOGY 179(2016):65-71.
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