Nordborg F Mikaela, Brinkman Diane L, Fisher Rebecca, Parkerton Thomas F, Oelgemöller Michael, Negri Andrew P
AIMS@JCU, Division of Research & Innovation, James Cook University and Australian Institute of Marine Science, Townsville 4810, Queensland, Australia; College of Science & Engineering, Division of Tropical Environments and Societies, James Cook University, Townsville 4810, Queensland, Australia; Australian Institute of Marine Science, Townsville 4810, Queensland, Australia.
Australian Institute of Marine Science, Townsville 4810, Queensland, Australia.
Mar Pollut Bull. 2023 Nov;196:115610. doi: 10.1016/j.marpolbul.2023.115610. Epub 2023 Oct 5.
Application of oil toxicity modelling for assessing the risk of spills to coral reefs remains uncertain due to a lack of data for key tropical species and environmental conditions. In this study, larvae of the coral Acropora millepora were exposed to six aromatic hydrocarbons individually to generate critical target lipid body burdens (CTLBBs). Larval metamorphosis was inhibited by all six aromatic hydrocarbons, while larval survival was only affected at concentrations >2000 μg L. The derived metamorphosis CTLBB of 9.7 μmol g octanol indicates larvae are more sensitive than adult corals, and places A. millepora larvae among the most sensitive organisms in the target lipid model (TLM) databases. Larvae were also more sensitive to anthracene and pyrene when co-exposed to ecologically relevant levels of ultraviolet radiation. The results suggest that the application of the phototoxic TLM would be protective of A. millepora larvae, provided adequate chemical and light data are available.
由于缺乏关键热带物种和环境条件的数据，利用油类毒性模型评估溢油对珊瑚礁的风险仍存在不确定性。在本研究中，将多孔鹿角珊瑚幼虫分别暴露于六种芳香烃中，以生成关键目标脂质体负荷（CTLBBs）。所有六种芳香烃均抑制幼虫变态，而仅在浓度>2000μg/L时幼虫存活才受到影响。得出的变态CTLBB为9.7μmol/g辛醇，表明幼虫比成年珊瑚更敏感，并使多孔鹿角珊瑚幼虫成为目标脂质模型（TLM）数据库中最敏感的生物之一。当幼虫同时暴露于生态相关水平的紫外线辐射时，它们对蒽和芘也更敏感。结果表明，如果有足够的化学和光照数据，光毒性TLM的应用将对多孔鹿角珊瑚幼虫起到保护作用。
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