Atmospheric movements
; Consumer behavior
; Ecology
; Hooks
; Isomers
; Organic pollutants
; Polychlorinated biphenyls
; Dechlorane plus
; Food webs
; Stereoselection
; The Antarctic
; Trophic magnifications
; Chemical contamination
; polychlorinated biphenyl
; chlorinated hydrocarbon
; flame retardant
; polychlorinated biphenyl
; water pollutant
; assimilation efficiency
; bioaccumulation
; biota
; concentration (composition)
; flame retardant
; food web
; PCB
; trophic level
; animal tissue
; Antarctica
; Article
; atmospheric transport
; bioaccumulation
; biomagnification
; chlorination
; concentration (parameters)
; controlled study
; food web
; nonhuman
; trophic level
; analysis
; environmental monitoring
; food chain
; water pollutant
; Antarctica
; Fildes Peninsula
; King George Island
; South Shetland Islands
; Antarctic Regions
; Environmental Monitoring
; Flame Retardants
; Food Chain
; Hydrocarbons, Chlorinated
; Polychlorinated Biphenyls
; Water Pollutants, Chemical
Scopus学科分类:
Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要:
The food web composition, assimilation efficiency of Dechlorane Plus (DP) in food web components, and even extrinsic conditions can affect the trophic biomagnification potentials of DP isomers in food webs. Antarctica ecological system is characterized by the presence of few consumers and simple trophic levels (TLs), which are crucial in discussing the behavior of contaminants. To assess the biomagnification potential of DP in the Antarctic food web, nine representative species were sampled and analyzed from the Fildes Peninsula. Results showed the DP concentrations ranged from 0.25�ng�g−�1 to 6.81�ng�g−�1 lipid weight in Antarctic biota and the concentrations of anti-DP and syn-DP showed significantly positive correlations with TLs (p�<�0.05, ra�=�0.85; rs�=�0.81, respectively), suggesting that syn-DP and anti-DP underwent biomagnification and the biomagnification ability of anti-DP was higher than that of syn-DP. The anti-DP fraction (anti-DP/∑DP) (ƒanti�=�0.23–0.53) of the organisms was lower than that of commercial products (ƒanti�=�0.68), demonstrating ƒanti was changed during long-range atmospheric transport or stereoselection enrichment through the food web. Furthermore, based on food web magnification factors (FWMF) comparison between DP and polychlorinated biphenyls (PCBs), the biomagnification potential of DP was found to be similar to that of highly chlorinated PCBs. � 2017 Elsevier Ltd
National Marine Environmental Monitoring Center, Dalian, Liaoning, China; Shanghai Ocean University, Shanghai, China; Department of Chemistry, Oregon State University, Corvallis, Oregon, United States; Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, Oregon, United States
Recommended Citation:
Na G.,Yao Y.,Gao H.,et al. Trophic magnification of Dechlorane Plus in the marine food webs of Fildes Peninsula in Antarctica[J]. Marine Pollution Bulletin,2017-01-01,117(2018-01-02)