| Summary: | 碩士 === 國立東華大學 === 海洋生物多樣性及演化研究所 === 100 === Due to the extreme temperature, the polar organisms usually store energy in lipids, where persistent organic pollutants (POPs) are more prone to bioaccumulation through the food chains in the polar region, and cause harmful effect to the polar ecosystem. This study analyzed polycyclic aromatic hydrocarbons (PAHs), organochlorine pesticides (OCPs) and polybrominated diphenylethers (PBDEs) in several Antarctic fishes and invertebrates. The total concentrations of 23 PAHs were 6~27 ng/g wet weight (ww) and 7~753 ng/g ww in the fishes and invertebrates, respectively, with phenanthrene (3-rings) at the largest proportion. The total concentrations of 15 OCPs were 6~39 ng/g ww and 4~123 ng/g ww in the fishes and invertebrates, respectively, with hexachlorocyclohexane (HCH) series as the main component, flowing were dichlorodipheyl-trichloroethane (DDT) series. The total concentrations 17 PBDEs were 0.1~0.4 ng/g ww and 0.1~125 ng/g ww in the fishes and invertebrates, respectively, with BDE15 and BDE183 as the main component in the fishes, but there were different components between different species in the invertebrates. The POP concentrations were analyzed in the different tissues of Antarctic fishes and sea urchins, which mainly accumulated in the viscera and eggs (gonads). Generally speaking, POP concentrations in Antarctic organisms accumulated differently among species, that may be related to their habitats, diet and metabolism. The PAH and PBDE concentrations in the organisms showed significantly negative correlations to their trophic level, whereas the OCP concentrations were positive correlation with their lipid content. It is noteworthy that the concentrations of PAH and OCP in Antarctic organisms had the similar levels to the marine organisms in other regions of the world, while the concentrations of PBDE were more than 10 times lower than the marine organisms in other regions.
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