期刊
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
卷 36, 期 7, 页码 1887-1895出版社
WILEY
DOI: 10.1002/etc.3713
关键词
Deepwater Horizon; Mahi-mahi; Oil spills; Polycyclic aromatic hydrocarbons (PAHs); Aquatic toxicology
Windows of exposure to a weathered Deepwater Horizon oil sample (slick A) were examined for early life stage mahi-mahi (Coryphaena hippurus) to determine whether there are developmental periods of enhanced sensitivity during the course of a standard 96-h bioassay. Survival was assessed at 96 h following oil exposures ranging from 2 h to 96 h and targeting 3 general periods of development, namely the prehatch phase, the period surrounding hatch, and the posthatch phase. In addition, 3 different oil preparations were used: high-and low-energy water accommodated fractions of oil and very thin surface slicks of oil (similar to 1 mu m). The latter 2 were used to distinguish between effects due to direct contact with the slick itself and the water underlying the slick. Considering the data from all 3 exposure regimes, it was determined that the period near or including hatch was likely the most sensitive. Furthermore, toxicity was not enhanced by direct contact with slick oil. These findings are environmentally relevant given that the concentrations of polycyclic aromatic hydrocarbons eliciting mortality from exposures during the sensitive periods of development were below or near concentrations measured during the active spill phase. (C) 2017 SETAC
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据