Prey-specific determination of arsenic bioaccumulation and transformation in a marine benthic fish
Zhang, W; Zhang, L; Wang, WX; wwang@ust.hk
2017
发表期刊SCIENCE OF THE TOTAL ENVIRONMENT
卷号586页码:296-303
摘要The sediments from Chinese coastal waters contain relatively high concentrations of arsenic (As), mainly arsenate As(V), which may be transferred along the marine benthic food chain. The prey-specific determination of As bioaccumulation and transformation in marine benthic fish remains little known. In this study, we focused on a typical marine benthic food chain comprising of sediments, deposit-feeding invertebrates (polychaete Nereis succinea and clam Gafrarium tumidum) and goby fish Mugilogobius chulae. Graded exposed experiments using different As exposure durations and concentrations were conducted to examine their transformation rate and efficiency. Radiotracer techniques were used to determine the rates of As uptake (as arsenate) from seawater, assimilation from two prey and its subsequent efflux in the goby fish. We demonstrated that the two prey (polychates and clams) displayed different As biotransformation in the goby fish. Biotransformation rate was higher in the goby fish fed on the clams than on the polychaetes, and biotransformation efficiency was lower with increasing inorganic As concentration in the prey. The As overall bioaccumulation in the goby fish was very low, mainly because of the low dissolved uptake and dietary assimilation and high efflux. Combining the biotransformation and biokinetics measurements, our findings highlighted that different prey containing different As concentrations and As species resulted in the comparable As bioaccumulation in the goby fish. (C) 2017 Elsevier B.V. All rights reserved.
部门归属[Zhang, Wei; Zhang, Li] Chinese Acad Sci, South China Sea Inst Oceanol, Guangdong Prov Key Lab Appl Marine Biol, Key Lab Trop Marine Bioresources & Ecol, Guangzhou 510301, Guangdong, Peoples R China; [Zhang, Wei; Wang, Wen-Xiong] Hong Kong Univ Sci & Technol, Div Life Sci, Kowloon, Hong Kong, Peoples R China
关键词Arsenic Biotransformation Bioaccumulation Biokinetics Goby Fish
资助项目LMB
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/16286
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wwang@ust.hk
推荐引用方式
GB/T 7714
Zhang, W,Zhang, L,Wang, WX,et al. Prey-specific determination of arsenic bioaccumulation and transformation in a marine benthic fish[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2017,586:296-303.
APA Zhang, W,Zhang, L,Wang, WX,&wwang@ust.hk.(2017).Prey-specific determination of arsenic bioaccumulation and transformation in a marine benthic fish.SCIENCE OF THE TOTAL ENVIRONMENT,586,296-303.
MLA Zhang, W,et al."Prey-specific determination of arsenic bioaccumulation and transformation in a marine benthic fish".SCIENCE OF THE TOTAL ENVIRONMENT 586(2017):296-303.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Prey-specific determ(782KB)期刊论文作者接受稿开放获取CC BY-NC-SA请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。