通过粪便分析评估北方 fur 海豹（Callorhinus ursinus）暴露于微塑料污染的情况。
Evaluating exposure of northern fur seals, Callorhinus ursinus, to microplastic pollution through fecal analysis.
机构信息
University of Hawai'i Sea Grant College Program, School of Ocean and Earth Science and Technology, University of Hawai'i at Mānoa, 2525 Correa Road, Hawai'i Institute of Geophysics 238, Honolulu, HI 96822, USA; University of Hawai'i Water Resources Research Center, University of Hawai'i at Mānoa, 2540 Dole St., Holmes Hall 283, Honolulu, HI 96822, USA.
Center for Urban Waters, University of Washington, Tacoma, 1900 Commerce St., Tacoma, WA 98402, USA.
出版信息
Mar Pollut Bull. 2019 Jan;138:213-221. doi: 10.1016/j.marpolbul.2018.11.036. Epub 2018 Nov 24.
Environmental microplastics are widely documented in marine life and bioaccumulation may present risks to marine predators. Investigations of microplastics in marine mammals are increasing, though none have examined animals routinely consumed by humans. Here, we investigate microplastic exposure in the northern fur seal (Callorhinus ursinus), a species consumed by humans, using fecal material. We examined 44 feces (scat) at sites encompassing the seals' eastern Pacific range. Multiple contamination control measures were implemented, including field and laboratory controls. Fragments were the most common microplastic recovered, in 55% (24/44) of scat and no controls (range 1 to 86 fragments/scat, mean 16.6, sd 19.1). Microplastic fibers were recovered from 41% of scats (18/44), though some controls contained fibers confounding fiber results. Fecal analysis documented northern fur seal exposure to microplastics throughout their eastern Pacific range.
环境中的微塑料在海洋生物中被广泛记录，生物蓄积可能对海洋捕食者构成风险。对海洋哺乳动物中微塑料的调查正在增加，尽管还没有研究过人类经常食用的动物。在这里，我们使用粪便调查了人类食用的北方海狗（Callorhinus ursinus）体内的微塑料暴露情况。我们在海豹的东太平洋分布范围内的 44 个地点检查了粪便（粪便）。实施了多项污染控制措施，包括现场和实验室控制。碎片是最常见的微塑料，占 55%（24/44）的粪便，没有对照物（范围为 1 至 86 个碎片/粪便，平均值为 16.6，标准差为 19.1）。从 41%的粪便中回收了微塑料纤维（18/44），尽管一些对照物中含有纤维，这使纤维的结果变得复杂。粪便分析记录了北方海狗在其东太平洋范围内暴露于微塑料的情况。
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