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首页> 外文期刊>Environmental Science & Technology >Polymer Identification of Plastic Debris Ingested by Pelagic-Phase Sea Turtles in the Central Pacific
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Polymer Identification of Plastic Debris Ingested by Pelagic-Phase Sea Turtles in the Central Pacific

机译：中太平洋上层海龟吞噬的塑料碎片的聚合物识别

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摘要

Pelagic Pacific sea turtles eat relatively large quantities of plastic (median 5 g in gut). Using Fourier transform infrared spectroscopy, we identified the polymers ingested by 37 olive ridley, 9 green, and 4 loggerhead turtles caught as bycatch in Hawaii- and American Samoa-based longline fisheries. Unidentifiable samples were analyzed using high-temperature size exclusion chromatography with multiple detectors and/or X-ray photoelectron spectroscopy. Regardless of species differences in dive depths and foraging strategies, ingested plastics were primarily low-density, floating polymers (51% low-density polyethylene (LDPE), 26% polypropylene (PP), 10% unknown polyethylene (PE), and 5% high-density PE collectively). Albeit not statistically significant, deeper diving and deeper captured olive ridley turtles ate proportionally more plastics expected to sink (3.9%) than intermediate-diving green (1.2%) and shallow-diving loggerhead (0.3%) turtles. Spatial, but no sex, size, year, or hook depth differences were observed in polymer composition. LDPE and PP, some of the most produced and least recycled polymers worldwide, account for the largest percentage of plastic eaten by sea turtles in this region. These novel data inform managers about the threat of plastic ingestion to sea turtles and may motivate development of more environmentally friendly practices for plastic production, use, and waste management.
机译：远洋太平洋海龟吃相对大量的塑料（肠道中位数为5克）。使用傅立叶变换红外光谱法，我们确定了在夏威夷和美属萨摩亚延绳钓渔业中被兼捕捕获的37只橄榄ridley，9只绿色和4只龟摄入的聚合物。使用带有多个检测器的高温尺寸排阻色谱法和/或X射线光电子能谱分析无法识别的样品。不论潜水深度和觅食策略的种类差异如何，摄入的塑料主要是低密度的浮动聚合物（51％的低密度聚乙烯（LDPE），26％的聚丙烯（PP），10％的未知聚乙烯（PE）和5％高密度PE）。尽管没有统计学上的意义，但深潜和深陷的橄榄色瑞德利海龟吃掉的塑料比例要比中度潜水绿海龟（1.2％）和浅水shallow海龟（0.3％）要多（3.9％）。在聚合物组成中未观察到空间差异，但没有性别，大小，年份或钩深度差异。 LDPE和PP是世界上一些产量最高，回收率最低的聚合物，在该地区海龟食用的塑料中所占比例最大。这些新颖的数据使管理人员了解到塑料摄入对海龟的威胁，并可能促使人们开发更环保的塑料生产，使用和废物管理方法。

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  • 来源
    《Environmental Science & Technology》 |2018年第20期|11535-11544|共10页
  • 作者

    Jung Melissa R.; Balazs George H.; Work Thierry M.; Jones T. Todd; Orski Sara V; Rodriguez Viviana C.; Beers Kathryn L.; Brignac Kayla C.; Hyrenbach K. David; Jensen Brenda A.; Lynch Jennifer M.;

  • 作者单位

    Hawaii Pacific Univ, Coll Nat & Computat Sci, Kaneohe, HI 96744 USA;

    Natl Marine Fisheries Serv, Pacific Isl Fisheries Sci Ctr, Honolulu, HI 96818 USA;

    US Geol Survey, Honolulu Field Stn, Natl Wildlife Hlth Ctr, Honolulu, HI 96818 USA;

    Natl Marine Fisheries Serv, Pacific Isl Fisheries Sci Ctr, Honolulu, HI 96818 USA;

    NIST, Mat Sci & Engn Div, Gaithersburg, MD 20899 USA;

    NIST, Mat Sci & Engn Div, Gaithersburg, MD 20899 USA;

    NIST, Mat Sci & Engn Div, Gaithersburg, MD 20899 USA;

    Univ Hawaii Manoa, Sch Ocean Earth Sci &Technology, Honolulu, HI 96822 USA;

    Hawaii Pacific Univ, Coll Nat & Computat Sci, Kaneohe, HI 96744 USA;

    Hawaii Pacific Univ, Coll Nat & Computat Sci, Kaneohe, HI 96744 USA;

    Hawaii Pacific Univ, Coll Nat & Computat Sci, Kaneohe, HI 96744 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);
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