Associations between metal exposure and lesion formation in offshore Gulf of Mexico fishes collected after the Deepwater Horizon oil spill
Associations between metal exposure and lesion formation in offshore Gulf of Mexico fishes collected after the Deepwater Horizon oil spill
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DOI：
10.1016/j.marpolbul.2017.01.066
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发表时间：
2017-04-15
影响因子：
5.8
通讯作者：
Peebles, Ernst B.
中科院分区：
文献类型：
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作者：
Granneman, Jennifer E.;Jones, David L.;Peebles, Ernst B.
本研究的目的是：（1）检查六种近海鱼类在不同健康状态下的耳石内短期和长期金属暴露的模式，如外部皮肤损伤的存在所表明的，以及（2）确定耳石金属浓度是否与深水地平线（DWH）漏油同时发生变化。对 2011 年至 2013 年在墨西哥湾 (GOM) 收集的耳石进行了分析，以确定是否存在一系列已知与 DWH 石油有关的微量金属。我们发现，在 DWI-I 漏油事件之前、期间和之后，受损鱼类的耳石 Ni-60 和 Zn-64 水平通常升高。此外，金属暴露根据物种特定的生活史模式而变化。这些发现表明，在漏油事件发生之前，受影响的个体在墨西哥湾暴露于持续存在的微量金属源中。 (C) 2017 Elsevier Ltd. 保留所有权利。
The objectives of this study were to: (1) examine patterns of short-and long-term metal exposure within the otoliths of six offshore fish species in varying states of health, as indicated by the presence of external skin lesions, and (2) determine if there was a change in otolith metal concentrations concurrent with the Deepwater Horizon (DWH) oil spill. Otoliths collected from 2011 to 2013 in the Gulf of Mexico (GOM) were analyzed for a suite of trace metals known to be associated with DWH oil. We found that lesioned fish often had elevated levels of otolith Ni-60 and Zn-64 before, during, and after the DWI-I oil spill. In addition, metal exposure varied according to species-specific life history patterns. These findings indicate that lesioned individuals were exposed to a persistent source of trace-metals in the GoM prior to the oil spill. (C) 2017 Elsevier Ltd. All rights reserved.