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首页> 外文期刊>Environmental Science & Technology >Assessment of Shorebird Migratory Fueling Physiology and Departure Timing in Relation to Polycyclic Aromatic Hydrocarbon Contamination in the Gulf of Mexico
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Assessment of Shorebird Migratory Fueling Physiology and Departure Timing in Relation to Polycyclic Aromatic Hydrocarbon Contamination in the Gulf of Mexico

机译：与墨西哥湾多环芳烃污染有关的Shore鸟迁徙加油生理和出发时间的评估

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摘要

Shorebirds depend on staging sites in the Gulf of Mexico that are frequently subject to pollution by oil and its toxic constituents, polycyclic aromatic hydrocarbons (PAHs). It was hypothesized that PAH contamination lowers staging site quality for migratory shorebirds, with consequences for fueling and departure timing. Sediment total PAH concentrations were measured at six staging sites along the Texas and Louisiana Gulf Coast. Sites in Louisiana were expected to have higher total PAH concentrations as they were more heavily impacted by the Deepwater Horizon oil spill. From 2015 to 2017, 165 Sanderling (Calidris alba) and SS Red knots (C. canutus) were captured at these same sites during their northward migration (late April to mid May). Mass, body morphometrics, and plasma metabolite measurements were taken to determine fuel loads and fueling rates, and a subset of birds (120 Sanderling and 39 Red knots) received a coded radio tag to determine departure dates using the Motus telemetry array. Compared to Texas sites, sediment in Louisiana had higher total PAH concentrations, dominated by heavier 6 ring indeno[1,2,3-cd]pyrene (48%). Plasma metabolite profiles suggested that fueling rates for Sanderling, but not Red knots, tended to be lower in Louisiana, and both species departed later than the study average from Louisiana. However, multiple factors, including migration patterns, food supply, and other contaminants, also likely influenced fueling and departures. PAH contamination in the Gulf of Mexico remains an ongoing issue that may be impacting the staging site quality and migration timing of long-distance migratory birds.
机译：水鸟依赖于墨西哥湾的集结地点，这些地点经常受到石油及其有毒成分多环芳烃（PAH）的污染。据推测，PAH污染会降低候鸟的暂存点质量，从而给加油和离场时间带来后果。在得克萨斯州和路易斯安那州墨西哥湾沿岸的六个站台处测量了沉积物总PAH浓度。预计路易斯安那州的站点总PAH浓度较高，因为它们受到“深水地平线”漏油事件的更大影响。从2015年到2017年，在向北迁移期间（4月下旬至5月中旬），在这些相同地点捕获了165个桑德林（Calidris alba）和SS红结（C. canutus）。进行质量，人体形态计量学和血浆代谢物测量，以确定加油量和加油速率，并使用Motus遥测阵列对一部分鸟类（120个桑德林和39个红结）进行编码，以确定起飞日期。与德克萨斯州的地点相比，路易斯安那州的沉积物具有更高的总PAH浓度，主要由6环茚并[1,2,3-cd] re（48％）控制。血浆代谢物的特征表明，路易斯安那州的桑德林（而非红结）的加油率趋于降低，并且两种物种的离开时间均晚于路易斯安那州的研究平均值。但是，包括迁移方式，食物供应和其他污染物在内的多种因素也可能影响加油和离港。墨西哥湾的PAH污染仍然是一个持续存在的问题，可能会影响长距离候鸟的登载地点质量和迁徙时间。

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  • 来源
    《Environmental Science & Technology》 |2018年第22期|13562-13573|共12页
  • 作者

    Bianchini Kristin; Morrissey Christy A.;

  • 作者单位

    Univ Saskatchewan, Sch Environm & Sustainabil, Saskatoon, SK S7N 5A2, Canada;

    Univ Saskatchewan, Dept Biol, Saskatoon, SK S7N 5A2, Canada;

    Univ Saskatchewan, Toxicol Ctr, Saskatoon, SK S7N 5A2, Canada;

  • 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);
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