| DOI: | 10.1111/gcb.14519
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| Scopus记录号: | 2-s2.0-85057725885
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| 论文题名: | Microplastic ingestion ubiquitous in marine turtles |
| 作者: | Duncan E.M.; Broderick A.C.; Fuller W.J.; Galloway T.S.; Godfrey M.H.; Hamann M.; Limpus C.J.; Lindeque P.K.; Mayes A.G.; Omeyer L.C.M.; Santillo D.; Snape R.T.E.; Godley B.J.
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| 刊名: | Global Change Biology
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| ISSN: | 13541013
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| 出版年: | 2019
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| 卷: | 25, 期:2 | | 起始页码: | 744
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| 结束页码: | 752
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| 语种: | 英语
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| 英文关键词: | anthropogenic debris
; marine debris
; marine plastic
; marine turtle
; microplastics
; plastic pollution
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| Scopus关键词: | anthropogenic source
; ingestion rate
; marine pollution
; plastic waste
; pollution exposure
; trophic interaction
; turtle
; Atlantic Ocean
; Mediterranean Sea
; Pacific Ocean
; Cheloniidae
; Testudines
; Vertebrata
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| 英文摘要: | Despite concerns regarding the environmental impacts of microplastics, knowledge of the incidence and levels of synthetic particles in large marine vertebrates is lacking. Here, we utilize an optimized enzymatic digestion methodology, previously developed for zooplankton, to explore whether synthetic particles could be isolated from marine turtle ingesta. We report the presence of synthetic particles in every turtle subjected to investigation (n = 102) which included individuals from all seven species of marine turtle, sampled from three ocean basins (Atlantic [ATL]: n = 30, four species; Mediterranean (MED): n = 56, two species; Pacific (PAC): n = 16, five species). Most particles (n = 811) were fibres (ATL: 77.1% MED: 85.3% PAC: 64.8%) with blue and black being the dominant colours. In lesser quantities were fragments (ATL: 22.9%: MED: 14.7% PAC: 20.2%) and microbeads (4.8%; PAC only; to our knowledge the first isolation of microbeads from marine megavertebrates). Fourier transform infrared spectroscopy (FT-IR) of a subsample of particles (n = 169) showed a range of synthetic materials such as elastomers (MED: 61.2%; PAC: 3.4%), thermoplastics (ATL: 36.8%: MED: 20.7% PAC: 27.7%) and synthetic regenerated cellulosic fibres (SRCF; ATL: 63.2%: MED: 5.8% PAC: 68.9%). Synthetic particles being isolated from species occupying different trophic levels suggest the possibility of multiple ingestion pathways. These include exposure from polluted seawater and sediments and/or additional trophic transfer from contaminated prey/forage items. We assess the likelihood that microplastic ingestion presents a significant conservation problem at current levels compared to other anthropogenic threats. © 2018 The Authors. Global Change Biology Published by John Wiley & Sons Ltd |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/117523
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| Appears in Collections: | 气候变化与战略
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| Recommended Citation: | |
Duncan E.M.,Broderick A.C.,Fuller W.J.,et al. Microplastic ingestion ubiquitous in marine turtles[J]. Global Change Biology,2019-01-01,25(2)
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