University of Miami, Rosenstiel School of Marine and Atmospheric Science, Department of Marine Biology and Ecology, 4600 Rickenbacker Cswy., Miami, FL 33149, USA; University of North Texas, Department of Biological Sciences, Advanced Environmental Research Institute, 1155 Union Circle, Denton, TX, 76203, USA.
University of Miami, Rosenstiel School of Marine and Atmospheric Science, Department of Marine Biology and Ecology, 4600 Rickenbacker Cswy., Miami, FL 33149, USA.
Mar Environ Res. 2018 Aug;139:129-135. doi: 10.1016/j.marenvres.2018.05.009. Epub 2018 May 5.
This study examined potential interactive effects of co-exposure to Deepwater Horizon (DWH) crude oil (∼30 μg L ΣPAHs) for 24 h and either hypoxia (2.5 mg O L; 40% O saturation) or elevated temperature (30 °C) on the swimming performance of juvenile mahi-mahi (Coryphaena hippurus). Additionally, effects of shorter duration exposures to equal or higher doses of oil alone either prior to swimming or during the actual swim trial itself were examined. Only exposure to hypoxia alone or combined with crude oil elicited significant decreases in critical swimming speed (U) and to a similar extent (∼20%). In contrast, results indicate that elevated temperature might ameliorate some effects of oil exposure on swimming performance and that effects of shorter duration exposures are either reduced or delayed.
本研究考察了在 24 小时内同时接触深海地平线（DWH）原油（约 30μg/L ΣPAHs）和缺氧（2.5mg O L；40% O 饱和度）或高温（30°C）对幼年鲯鳅（Coryphaena hippurus）游泳性能的潜在交互影响。此外，还研究了在游泳前或游泳过程中，单独或同时接触更高剂量的油持续较短时间的影响。只有单独暴露于缺氧或与原油联合暴露会显著降低临界游泳速度（U），影响程度相似（约 20%）。相比之下，结果表明，高温可能会减轻油暴露对游泳性能的一些影响，并且短时间暴露的影响要么减少，要么延迟。
