Department of Biological Sciences and Advanced Environmental Research Institute, University of North Texas, Denton, Texas, USA.
Oceans and Atmosphere, Commonwealth Scientific and Industrial Research Organisation, Hobart, Tasmania, Australia.
Environ Toxicol Chem. 2018 May;37(5):1359-1366. doi: 10.1002/etc.4083. Epub 2018 Mar 24.
Some polycyclic aromatic hydrocarbons (PAHs), components of crude oil, are known to cause increased toxicity when organisms are co-exposed with ultraviolet radiation, resulting in photo-induced toxicity. The photodynamic characteristics of some PAHs are of particular concern to places like Australia with high ultraviolet radiation levels. The objective of the present study was to characterize the photo-induced toxicity of an Australian North West Shelf oil to early life stage yellowtail kingfish (Seriola lalandi) and black bream (Acanthopagrus butcheri). The fish were exposed to high-energy water accommodated fractions for 24 to 36 h. During the exposure, the fish were either co-exposed to full-intensity or filtered natural sunlight and then transferred to clean water. At 48 h, survival, cardiac effects, and spinal deformities were assessed. Yellowtail kingfish embryos co-exposed to oil and full-spectrum sunlight exhibited decreased hatching success and a higher incidence of cardiac arrhythmias, compared with filtered sunlight. A significant increase in the incidence of pericardial edema occurred in black bream embryos co-exposed to full-spectrum sunlight. These results highlight the need for more studies investigating the effects of PAHs and photo-induced toxicity under environmental conditions relevant to Australia. Environ Toxicol Chem 2018;37:1359-1366. © 2018 SETAC.
一些多环芳烃（PAHs）是原油的组成部分，已知当生物体与紫外线同时暴露时会增加毒性，从而导致光诱导毒性。一些 PAHs 的光动力特性尤其引起了澳大利亚等高紫外线辐射水平地区的关注。本研究的目的是描述澳大利亚西北大陆架石油对早期生活阶段黄尾鲷（Seriola lalandi）和黑鲷（Acanthopagrus butcheri）的光诱导毒性。鱼在高能水容纳部分中暴露 24 至 36 小时。在暴露期间，鱼要么同时暴露于全强度或过滤自然阳光，然后转移到干净的水中。在 48 小时时，评估了存活率、心脏效应和脊柱畸形。与过滤阳光相比，与石油和全光谱阳光同时暴露的黄尾鲷胚胎的孵化成功率降低，心律失常发生率更高。与全光谱阳光同时暴露的黑鲷胚胎的心包水肿发生率显著增加。这些结果强调了需要更多的研究来调查在与澳大利亚相关的环境条件下 PAHs 和光诱导毒性的影响。环境毒理化学 2018;37:1359-1366。 2018 年 SETAC 版权所有。
