title: Large-scale spatial and interspecies differences in trace elements and stable isotopes in marine wild fish from Chinese waters.
abstract: We conducted a large scale investigation of twelve trace element levels and stable isotopes (δ(13)C and δ(15)N) in twenty-nine marine wild fish species collected from Chinese coastal waters. Trace element levels varied significantly with species. Clear spatial variations were found for Al, As, Cd, Cr, Fe, Ni, and Pb, whereas Ag, Cu, Mo, Se and Zn did not show much spatial variation. The Pearl River Estuary contained the highest concentrations of Al, Cr, Ni, and Pb, whereas the most southern waters (Haikou) contained the lowest concentrations of Al, Fe, and Pb. There was no correlation between log-transformed trace elements concentrations and δ(15)N values or δ(13)C values, indicating no biomagnification among these trace elements. The calculated hazard quotients (HQ) of 10 elements were less than 1, thus there was no obvious health risk from the intake of trace elements through marine wild fish consumption.
authors.affiliation: Key Laboratory of Marine Bio-resources Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Zhang
authors.forename: Wen-Xiong
authors.initials: WX
authors.lastname: Wang
mesh_terms: D000818:Animals; D001151:Arsenic / Q000032:analysis*; D002247:Carbon Isotopes / Q000032:analysis; D002681:China; D004784:Environmental Monitoring; D005399:Fishes; D005506:Food Contamination / Q000032:analysis; D006801:Humans; D008670:Metals / Q000032:analysis*; D018482:Muscle, Skeletal / Q000737:chemistry; D009587:Nitrogen Isotopes / Q000032:analysis; D018570:Risk Assessment; D017747:Seafood / Q000032:analysis; D012623:Seawater / Q000032:analysis; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D002247:Carbon Isotopes; D008670:Metals; D009587:Nitrogen Isotopes; D014874:Water Pollutants, Chemical; D001151:Arsenic