Ultraviolet Radiation Enhances the Toxicity of Deepwater Horizon Oil to Mahi-mahi (Coryphaena hippurus) Embryos

Environmental Science & Technology
Matthew M AlloyA P Roberts

Abstract

The 2010 Deepwater Horizon oil spill resulted in the accidental release of millions barrels of crude oil into the Gulf of Mexico. Photoinduced toxicity following coexposure to ultraviolet (UV) radiation is one mechanism by which polycyclic aromatic hydrocarbons (PAHs) from oil spills may exert toxicity. Mahi-mahi (Coryphaena hippurus), an important fishery resource, have positively buoyant, transparent eggs. These characteristics may result in mahi-mahi embryos being at particular risk from photoinduced toxicity. The goal of this study was to determine whether exposure to ultraviolet radiation as natural sunlight enhances the toxicity of crude oil to embryonic mahi-mahi. Mahi-mahi embryos were exposed to several dilutions of water accommodated fractions (WAF) from slick oil collected during the 2010 spill and gradations of natural sunlight in a fully factorial design. Here, we report that coexposure to natural sunlight and WAF significantly reduced percent hatch in mahi-mahi embryos. Effect concentrations of PAH in WAF were within the range of surface PAH concentrations reported in the Gulf of Mexico during the Deepwater Horizon spill. These data suggest that laboratory toxicity tests that do not include UV may underestimate th...Continue Reading

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Jul 23, 2015·Environmental Toxicology and Chemistry·Matthew M AlloyAaron P Roberts

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Citations

Mar 29, 2016·Environmental Toxicology and Chemistry·John D StieglitzMartin Grosell
Oct 28, 2016·Comparative Biochemistry and Physiology. Toxicology & Pharmacology : CBP·Aaron P RobertsJames T Oris
Apr 19, 2017·Environmental Toxicology and Chemistry·Bryson E FinchWilliam A Stubblefield
Jan 13, 2018·Environmental Toxicology and Chemistry·Lauren E SweetAaron P Roberts
Feb 24, 2018·Environmental Toxicology and Chemistry·Kristin N BridgesAaron P Roberts
Jun 2, 2018·Environmental Toxicology and Chemistry·Kristin N BridgesAaron P Roberts
Feb 28, 2019·Photochemical & Photobiological Sciences : Official Journal of the European Photochemistry Association and the European Society for Photobiology·Craig E WilliamsonRobert C Worrest
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Nov 1, 2020·The Science of the Total Environment·Mário J AraújoMarta S Monteiro
Apr 25, 2020·The Science of the Total Environment·F Mikaela NordborgAndrew P Negri
Mar 18, 2020·Aquatic Toxicology·Lisa A MayCheryl M Woodley
Nov 23, 2018·The Science of the Total Environment·Christina PasparakisMartin Grosell
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Sep 21, 2021·Journal of Toxicology and Environmental Health. Part B, Critical Reviews·Ryan TakeshitaAilsa J Hall
Oct 6, 2021·The Science of the Total Environment·Libe Aranguren-AbadíaOdd André Karlsen

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