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首页> 外文期刊>Environmental toxicology and chemistry >EXPOSURE TO ULTRAVIOLET RADIATION LATE IN DEVELOPMENT INCREASES THE TOXICITY OF OIL TO MAHI-MAHI (CORYPHAENA HIPPURUS) EMBRYOS
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EXPOSURE TO ULTRAVIOLET RADIATION LATE IN DEVELOPMENT INCREASES THE TOXICITY OF OIL TO MAHI-MAHI (CORYPHAENA HIPPURUS) EMBRYOS

机译:紫外线辐射在发展中的后期暴露增加了油类对玛希玛希(Coryphaena Hippurus)胚胎的毒性

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摘要

The Deepwater Horizon oil spill in 2010 overlapped with the spawning of many pelagic fish species in the Gulf of Mexico, including mahi-mahi (Coryphaena hippurus). Polycyclic aromatic hydrocarbons (PAHs) released during the spill have been shown to cause photo-induced toxicity under ultraviolet (UV) radiation. In the present study, mahi-mahi embryos were exposed to high-energy water accommodated fractions of source and naturally weathered oils for up to 48 h. The timing of co-exposure with UV radiation varied between an early development exposure for 8 h or a late development exposure for 8 h. The UV co-exposure had a photo-induced toxic effect on hatching success for all oil types and exposure scenarios. A more sensitive developmental window to photo-induced toxicity was observed when UV exposure occurred late in development. Source Oil B was over 6-fold more toxic, and Massachusetts source oil was 1.6-fold more toxic when the embryos were co-exposed toUVlight late in development. Furthermore, weathered oil from the surface co-exposure with UV late in development resulted in bradycardia in the mahi-mahi. The present study provides evidence that the developmental window when UV co-exposure occurs has a significant effect on the degree of photo-induced toxicity of oil and that UV co-exposure may exacerbate long-term cardiac effects in developing fish. (C) 2016 SETAC
机译:2010年的“深水地平线”溢油事故与墨西哥湾许多中上鱼类的产卵重叠,包括mahi-mahi(Coryphaena hippurus)。泄漏期间释放的多环芳烃(PAH)已显示在紫外线(UV)辐射下会引起光诱导的毒性。在本研究中,mahi-mahi胚胎暴露于高能水容纳的部分来源和自然风化油中长达48小时。与紫外线辐射共同暴露的时间在早期显影时间为8小时或后期显影时间为8小时之间变化。紫外线共同暴露对所有类型的油和暴露情况下的孵化成功都有光致毒性作用。当紫外线暴露发生在发育后期时,观察到对光诱导毒性更敏感的发育窗口。当胚胎在发育后期与紫外线共同暴露时,源油B的毒性高出6倍,而马萨诸塞州源油的毒性高1.6倍。此外,在开发后期与紫外线共同暴露的风化油会导致mahi-mahi心动过缓。本研究提供证据表明,紫外线共同暴露发生时的发育窗口对光致油的毒性程度有显着影响,紫外线共同暴露可能会加重发育中鱼类的长期心脏影响。 (C)2016年SETAC

著录项

  • 来源
    《Environmental toxicology and chemistry》 |2017年第6期|1592-1598|共7页
  • 作者单位

    Univ North Texas, Dept Biol Sci, Denton, TX 76203 USA|Univ North Texas, Adv Environm Res Inst, Denton, TX 76203 USA;

    Univ North Texas, Dept Biol Sci, Denton, TX 76203 USA|Univ North Texas, Adv Environm Res Inst, Denton, TX 76203 USA;

    Univ North Texas, Dept Biol Sci, Denton, TX 76203 USA|Univ North Texas, Adv Environm Res Inst, Denton, TX 76203 USA;

    Univ North Texas, Dept Biol Sci, Denton, TX 76203 USA|Univ North Texas, Adv Environm Res Inst, Denton, TX 76203 USA;

    Univ Miami, Dept Marine Biol & Ecol, Rosenstiel Sch Marine & Atmospher Sci, Miami, FL USA;

    Univ Miami, Dept Marine Biol & Ecol, Rosenstiel Sch Marine & Atmospher Sci, Miami, FL USA;

    Univ Miami, Dept Marine Biol & Ecol, Rosenstiel Sch Marine & Atmospher Sci, Miami, FL USA;

    Univ North Texas, Dept Biol Sci, Denton, TX 76203 USA|Univ North Texas, Adv Environm Res Inst, Denton, TX 76203 USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Photo-induced toxicity; Polycyclic aromatic hydrocarbons (PAHs); Oil spills;

    机译:光致毒性;多环芳烃(PAHs);漏油;

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