Dept. Natural Science and Environmental Health, University of South-Eastern Norway, 3800 Bø, Norway.
Dept. Natural Science and Environmental Health, University of South-Eastern Norway, 3800 Bø, Norway.
Mar Pollut Bull. 2023 Sep;194(Pt A):115280. doi: 10.1016/j.marpolbul.2023.115280. Epub 2023 Jul 17.
To establish the use of eggs as biomonitoring tools for maternal body burdens, we investigated the mother-to-egg ratio of 56 PCB, 12 OCP and 34 PBDE unique compounds from maternal plasma into replicate egg yolk and albumen samples in the loggerhead turtle (Caretta caretta) as a case study of a threatened migratory marine species. We applied robust Regression on Order Statistics to fully account for the information in both censored and uncensored data. Our results added new insights into the use of yolk as a suitable biomonitoring matrix; the difference between yolk and albumen which were previously analysed as a homogeneous mixture; and the value of accounting for censored data. Overall, compound-specific mother-to-egg ratios need to be considered when translating yolk levels back to maternal pollution burdens, and when assessing the risk to the subsequent generations of turtle embryos.
为了确立将鸡蛋用作母体体负荷生物监测工具，我们研究了 56 种 PCB、12 种 OCP 和 34 种 PBDE 独特化合物从母血浆到红海龟（Caretta caretta）重复卵黄和卵白样本中的母体-卵比例，红海龟是一种受威胁的迁徙海洋物种。我们应用稳健的有序统计回归充分考虑了有删失和无删失数据中的信息。我们的研究结果为卵黄作为合适的生物监测基质的应用提供了新的见解，卵黄和卵白之前被分析为同质混合物，以及考虑删失数据的价值。总体而言，在将卵黄水平回推到母体污染负荷时，以及在评估海龟胚胎后代的风险时，需要考虑特定化合物的母体-卵比例。
