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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; 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.
2016
Source PublicationAQUATIC TOXICOLOGY
Volume170Pages:216-222
AbstractAllometry 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.
Department[Guo, Zhiqiang; Zhang, Wei; Du, Sen; 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; [Guo, Zhiqiang; Green, Iain] Bournemouth Univ, Fac Sci & Technol, Dept Life & Environm Sci, Poole BH12 5BB, Dorset, England; [Tan, Qiaoguo] Xiamen Univ, Coll Environm & Ecol, Minist Educ, Key Lab Coastal & Wetland Ecosyst, Xiamen 361102, Fujian, Peoples R China ; 广东省海洋药物重点实验室
KeywordBiokinetic Model Ontogenetic Development Metal Uptake Fish Copper
Subject AreaMarine & Freshwater Biology ; Toxicology
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/15539
Collection中科院海洋生物资源可持续利用重点实验室
Corresponding AuthorZhang, 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.
Recommended Citation
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, L .(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.
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