Center for Marine Environmental Studies (CMES), Ehime University, Bunkyo-cho 3, Matsuyama 790-8577, Japan.
Center for Marine Environmental Studies (CMES), Ehime University, Bunkyo-cho 3, Matsuyama 790-8577, Japan.
Mar Environ Res. 2014 Feb;93:15-22. doi: 10.1016/j.marenvres.2013.08.016. Epub 2013 Sep 10.
Information on accumulation of halogenated phenolic contaminants in the blood of marine mammal is limited. The present study, we determined the residue levels and patterns of chlorinated and brominated phenolic contaminants (OH-PCBs, OH-PBDEs and bromophenols) in the blood collected from pinnipeds (northern fur seal, spotted seal, Steller sea lion and ribbon seal) and small cetaceans (harbor porpoise and Dall's porpoise) from Japanese coastal waters. Concentrations of PCBs and OH-PCBs found in pinnipeds were the same as in small cetaceans living in the same coastal area. However, significantly lower concentrations of brominated compounds (PBDEs, MeO-PBDEs, OH-PBDEs) were found in the blood of pinnipeds than the levels found in cetacean species which live same area (p < 0.05). This difference of accumulation pattern suggested pinnipeds have an enhanced capability to degrade organobromine compounds relative to cetaceans.
有关海洋哺乳动物血液中卤代酚类污染物积累的信息有限。本研究测定了来自日本沿海水域的鳍足类动物（北方海狗、斑海豹、北方海狮和带纹海豹）和小型鲸类动物（港湾鼠海豚和白腰鼠海豚）血液中氯代和溴代酚类污染物（OH-PCBs、OH-PBDEs 和溴酚）的残留水平和模式。在鳍足类动物中发现的多氯联苯和 OH-PCBs 浓度与生活在同一沿海地区的小型鲸类动物相同。然而，与生活在同一地区的鲸类物种相比，鳍足类动物血液中溴化化合物（PBDEs、MeO-PBDEs、OH-PBDEs）的浓度明显较低（p<0.05）。这种积累模式的差异表明，与鲸类动物相比，鳍足类动物具有更强的降解有机溴化合物的能力。
