Multi-stressor Effects of Ultraviolet Light, Temperature, and Salinity on Louisiana Sweet Crude Oil Toxicity in Larval Estuarine Organisms
Multi-stressor Effects of Ultraviolet Light, Temperature, and Salinity on Louisiana Sweet Crude Oil Toxicity in Larval Estuarine Organisms
复制标题
紫外线、温度和盐度对路易斯安那低硫原油对幼虫河口生物毒性的多重应激影响
DOI：
10.1007/s00244-021-00809-3
复制
发表时间：
2021
影响因子：
4
通讯作者：
Wirth, Edward F.
中科院分区：
文献类型：
--
作者：
DeLorenzo, Marie E.;Key, Peter B.;Chung, Katy W.;Aaby, Kaitlin;Hausman, Deanna;Jean, Cheldina;Pennington, Paul L.;Pisarski, Emily C.;Wirth, Edward F.
当石油泄漏到环境中时，其毒性会受到非生物条件的影响。化学污染物和环境因素的累积和交互应激源在潮汐波动引起盐度、温度和紫外线(UV)穿透的广泛变化的河口尤其相关，这是多环芳烃(PAH)毒性的重要调节因素。表征多种应激源对石油毒性的相互作用将改善对各种漏油情景下环境影响的预测。这项研究考察了原油毒性随温度、盐度和紫外线的变化。石油暴露包括高能、水吸收组分(HEWAFs)和稀薄的石油光泽。对代表不同营养水平和生境的仔鱼(孵化后24-48h)进行了评价。在标准条件(20ppt，25℃，无紫外线)下测试的作为HEWAF的油的平均96小时LC_(50)值为62.5微克/L tPAH50(泥螺)，198.5微克/L(草虾)和774.5微克/L(羊头鱼)。稀油光泽96小时LC_(50)值在标准条件下分别为5.3微克/L tPAH50(泥螺)、14.7微克/L(草虾)和22.0微克/L(羊头鱼)。在所有受试物种中，紫外光显著增加了油的毒性。温度越高、盐度越低，石油毒性也越大。对于HEWAFs，多应激源(油类与温度升高、盐度降低或两者兼而有之)的LC50值降至3微克/L tPAH50；对于稀油膜，<； 为1.0微克/L tPAH50。石油泄漏时的环境条件将严重影响石油毒性和生物反应，在毒性测试和石油泄漏损害评估中应予以考虑。
When oil is spilled into the environment its toxicity is affected by abiotic conditions. The cumulative and interactive stressors of chemical contaminants and environmental factors are especially relevant in estuaries where tidal fluctuations cause wide variability in salinity, temperature, and ultraviolet (UV) light penetration, which is an important modifying factor for polycyclic aromatic hydrocarbon (PAH) toxicity. Characterizing the interactions of multiple stressors on oil toxicity will improve prediction of environmental impacts under various spill scenarios. This study examined changes in crude oil toxicity with temperature, salinity, and UV light. Oil exposures included high-energy, water-accommodated fractions (HEWAFs) and thin oil sheens. Larval (24–48 h post hatch) estuarine species representing different trophic levels and habitats were evaluated. Mean 96 h LC50values for oil prepared as a HEWAF and tested under standard conditions (20 ppt, 25 °C, No-UV) were 62.5 µg/L tPAH50(mud snails), 198.5 µg/L (grass shrimp), and 774.5 µg/L (sheepshead minnows). Thin oil sheen 96 h LC50values were 5.3 µg/L tPAH50(mud snails), 14.7 µg/L (grass shrimp), and 22.0 µg/L (sheepshead minnows) under standard conditions. UV light significantly increased the toxicity of oil in all species tested. Oil toxicity also was greater under elevated temperature and lower salinity. Multi-stressor (oil combined with either increased temperature, decreased salinity, or both) LC50values were reduced to 3 µg/L tPAH50for HEWAFs and < 1.0 µg/L tPAH50for thin oil sheens. Environmental conditions at the time of an oil spill will significantly influence oil toxicity and organismal response and should be taken into consideration in toxicity testing and oil spill damage assessments.
登录
查看更多内容
海洋泥蜗牛 Ilyanassa obsoleta 的参考书目
DOI：
--
发表时间：
2002
期刊：
影响因子：
--
作者：
J. R. Collier
通讯作者：
J. R. Collier
草虾、古虾属作为人为影响生物指标的综述
DOI：
--
发表时间：
2006
期刊：
影响因子：
--
作者：
P. Key;Edward F. Wirth;Michael H. Fulton
通讯作者：
Michael H. Fulton
羊头鲦鱼（Cyprinodon variegatus）的渗透调节：盐度波动的影响
DOI：
--
发表时间：
1999
期刊：
影响因子：
--
作者：
Dennis C. Haney
通讯作者：
Dennis C. Haney
发育中的泥螺 Ilyanassa obsoleta 开始进食颗粒时，对 2 号燃油的敏感性增加
DOI：
--
发表时间：
1983
期刊：
影响因子：
--
作者：
J. Pechenik;Don C. Miller
通讯作者：
Don C. Miller
羊头鲦鱼 Cyprinodon variegatus Lacépède 的渗透调节
DOI：
--
发表时间：
1985
期刊：
影响因子：
--
作者：
F. Nordlie
通讯作者：
F. Nordlie