PubMed日本語 - 深海の地平線ソース油の毒性と珊瑚幼虫に対する化学分散させるもの(Corexit®9500)。―QLifePro医療翻訳医療翻訳 QLifePro



Toxicity of Deepwater Horizon source oil and the chemical dispersant, Corexit® 9500, to coral larvae.

Published date 2013 Jan 9


Toxicity of Deepwater Horizon source oil and the chemical dispersant, Corexit® 9500, to coral larvae.


Published date



Gretchen Goodbody-Gringley, Dana L Wetzel, Daniel Gillon, Erin Pulster, Allison Miller, Kim B Ritchie


Mote Marine Laboratory, Sarasota, Florida, USA.


Acute catastrophic events can cause significant damage to marine environments in a short time period and may have devastating long-term impacts. In April 2010 the BP-operated Deepwater Horizon (DWH) offshore oil rig exploded, releasing an estimated 760 million liters of crude oil into the Gulf of Mexico. This study examines the potential effects of oil spill exposure on coral larvae of the Florida Keys. Larvae of the brooding coral, Porites astreoides, and the broadcast spawning coral, Montastraea faveolata, were exposed to multiple concentrations of BP Horizon source oil (crude, weathered and WAF), oil in combination with the dispersant Corexit® 9500 (CEWAF), and dispersant alone, and analyzed for behavior, settlement, and survival. Settlement and survival of P. astreoides and M. faveolata larvae decreased with increasing concentrations of WAF, CEWAF and Corexit® 9500, however the degree of the response varied by species and solution. P. astreoides larvae experienced decreased settlement and survival following exposure to 0.62 ppm source oil, while M. faveolata larvae were negatively impacted by 0.65, 1.34 and 1.5 ppm, suggesting that P. astreoides larvae may be more tolerant to WAF exposure than M. faveolata larvae. Exposure to medium and high concentrations of CEWAF (4.28/18.56 and 30.99/35.76 ppm) and dispersant Corexit® 9500 (50 and 100 ppm), significantly decreased larval settlement and survival for both species. Furthermore, exposure to Corexit® 9500 resulted in settlement failure and complete larval mortality after exposure to 50 and 100 ppm for M. faveolata and 100 ppm for P. astreoides. These results indicate that exposure of coral larvae to oil spill related contaminants, particularly the dispersant Corexit® 9500, has the potential to negatively impact coral settlement and survival, thereby affecting the resilience and recovery of coral reefs following exposure to oil and dispersants.


珊瑚(Montastraea faveolata)を生んでいる気味の悪い珊瑚、Porites astreoidesと放送の幼虫は、単独で血圧地平線ソース油(粗、風化する、そして、WAF)の複数の濃度、分散させるものCorexit®9500(CEWAF)と結合する油と分散させるものに曝されて、行動、定着と生存のために分析された。
P. astreoidesとM. faveolata幼虫の定住と生存は、WAF、CEWAFとCorexit®9500(しかしながら種と溶液によって変化する反応の程度)の濃度を上昇させることで減少した。
P. M. faveolata幼虫が0.65、1.34および1.5に負に影響を受ける、astreoides幼虫は、0.62ppmのソース油への暴露後に、減少した和解と生存を経験した、ppm、そのP. astreoides幼虫を示唆することは、WAF暴露に、M. faveolata幼虫より寛容である場合がある。
さらにまた、Corexit®9500への暴露は、P. astreoidesのためにM. faveolataと100ppm 50と100ppmへの露出の後で、和解失敗と完全な幼虫の死亡率に帰着した。

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