Maternal-to-fetal transfer and concentration profiles of PCB congeners for Steller sea lions (Eumetopias jubatus) from Hokkaido,Japan |
| |
| Institution: | 1. Graduate School of Environmental Science, Hokkaido University, N10-W5, Kita-ku, Sapporo, Hokkaido 060-0810, Japan;2. Institute of Environmental Sciences, Environmental and Geological Research Department, Hokkaido Research Organization, N19-W12, Kita-ku, Sapporo, Hokkaido 060-0819, Japan;3. Shiretoko Nature Foundation, 531 Iwaubetsu, Shari-cho, Hokkaido 099-4356, Japan;4. Graduate School of Fisheries Sciences, Division of Marine Bioresources and Environmental Science, Hokkaido University, 3-1-1 Minato, Hakodate, Hokkaido 041-8611, Japan;5. Fisheries Management Division, Hokkaido National Fisheries Research Institute, Fisheries Research Agency, Katsurakoi 116, Kushiro, Hokkaido 085-0802, Japan |
| |
| Abstract: | The concentrations of PCB congeners in the blubber and liver of mother Steller sea lions (Eumetopias jubatus; SSLs) and their fetuses from the coast of Hokkaido, Japan in 2008, 2010 and 2012 were analyzed by HRGC–HRMS, in order to elucidate PCB congener profiles and maternal-to-fetal transfer of PCBs in SSLs. ΣPCBs in the fetuses were 1400 ± 660 (the mean ± SD) ng/g-fat in the blubber and 570 ± 320 ng/g-fat in the liver, respectively. There was a concern that SSLs had been contaminated by PCBs during the fetal period. The concentrations of the major congeners in the blubber and liver were a correlation between the fetus and mother (blubber: r = 0.9934, liver: r = 0.9160; P ≦ 0.05). The results indicated that PCBs in the fetuses came from the mothers. #177 and #199 showed no correlations between the fetus and the mother in the blubber and liver. This indicated a selective capture by some natural protector such as the placenta. |
| |
| Keywords: | PCBs Congeners Steller sea lion Fetus Maternal-to-fetal transfer Hokkaido Japan |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
