Developmental patterns of copper bioaccumulation in a marine fish model Oryzias melastigma

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	Developmental patterns of copper bioaccumulation in a marine fish model Oryzias melastigma
	Guo, Zhiqiang; Zhang, Wei; Du, Sen; Green, Iain; Tan, Qiaoguo; Zhang, Li
刊名	AQUATIC TOXICOLOGY
	2016
卷号	170 页码:216-222
关键词	Biokinetic model Ontogenetic development Metal uptake Fish Copper
通讯作者	Zhang, L (reprint author), 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.
中文摘要	Allometry is known to be an important factor influencing metal bioaccumulation in animals. However, it is not clear whether effects are due to body size perse or changes in physiological traits during the animals' development. We therefore investigated the biokinetics of copper (Cu) and predicted Cu bioaccumulation during the development of a fish model, the marine medaka. The results revealed that the waterborne Cu uptake rate constant decreased and dietary Cu assimilation efficiency increased during development from larvae to adults. Thus, the allometric dependency of the biokinetic parameters in juveniles and adults can not be simply extrapolated to the whole life cycle. The body Cu concentration in the fish was predicted by the biokinetic model, which showed a rapid increase in the larval stage, followed by a slight increase from juveniles to adults, and then a relatively stable plateau in the post-adult stage. Dietary Cu uptake became more important as fish developed from larvae to juveniles, but became less important from juveniles to adults. These findings suggested that the developmental patterns of metal bioaccumulation are driven by an integrated biological/physiological shift through animals' ontogeny rather than a simple allometric dependent change. The developmental changes of metal uptake should be considered in ecological bioassessment and biomonitoring programs. (C) 2015 Elsevier B.V. All rights reserved.
学科主题	Marine & Freshwater Biology; Toxicology
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/15539]
专题	南海海洋研究所_中科院海洋生物资源可持续利用重点实验室
推荐引用方式 GB/T 7714	Guo, Zhiqiang,Zhang, Wei,Du, Sen,et al. Developmental patterns of copper bioaccumulation in a marine fish model Oryzias melastigma[J]. AQUATIC TOXICOLOGY,2016,170:216-222.
APA	Guo, Zhiqiang,Zhang, Wei,Du, Sen,Green, Iain,Tan, Qiaoguo,&Zhang, Li.(2016).Developmental patterns of copper bioaccumulation in a marine fish model Oryzias melastigma.AQUATIC TOXICOLOGY,170,216-222.
MLA	Guo, Zhiqiang,et al."Developmental patterns of copper bioaccumulation in a marine fish model Oryzias melastigma".AQUATIC TOXICOLOGY 170(2016):216-222.