Norwegian Polar Institute, Fram Centre, Tromsø, Norway.
Sci Total Environ. 2011 Jun 15;409(14):2783-95. doi: 10.1016/j.scitotenv.2011.03.015. Epub 2011 May 20.
Differences in bioaccumulation of persistent organic pollutants (POPs) between fjords characterized by different water masses were investigated by comparing POP concentrations, patterns and bioaccumulation factors (BAFs) in seven species of zooplankton from Liefdefjorden (Arctic water mass) and Kongsfjorden (Atlantic water mass), Svalbard, Norway. No difference in concentrations and patterns of POPs was observed in seawater and POM; however higher concentrations and BAFs for certain POPs were found in species of zooplankton from Kongsfjorden. The same species were sampled in both fjords and the differences in concentrations of POPs and BAFs were most likely due to fjord specific characteristics, such as ice cover and timing of snow/glacier melt. These confounding factors make it difficult to conclude on water mass (Arctic vs. Atlantic) specific differences and further to extrapolate these results to possible climate change effects on accumulation of POPs in zooplankton. The present study suggests that zooplankton do biomagnify POPs, which is important for understanding contaminant uptake and flux in zooplankton, though consciousness regarding the method of evaluation is important.
本研究通过比较来自挪威斯瓦尔巴群岛利菲尤尔登峡湾（北极水团）和康斯峡湾（大西洋水团）的七种浮游动物中持久性有机污染物（POPs）的浓度、分布模式和生物积累因子（BAF），调查了不同水团特征的峡湾中 POPs 生物积累的差异。在海水中和 POM 中未观察到 POPs 的浓度和分布模式存在差异；然而，在来自康斯峡湾的浮游动物中发现了某些 POPs 的浓度和 BAF 更高。在两个峡湾中都采集了相同的物种，POPs 浓度和 BAF 的差异很可能是由于峡湾的具体特征，如冰盖和冰雪融化的时间。这些混杂因素使得难以确定水团（北极与大西洋）的具体差异，并进一步推断这些结果对气候变化可能对浮游动物中 POPs 积累的影响。本研究表明，浮游动物确实会生物放大 POPs，这对于了解浮游动物中污染物的吸收和通量非常重要，尽管对评估方法的认识很重要。
