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Microplastic in riverine fish is connected to species traits

Scientific reports, 2018-08, Vol.8 (1), p.11639-12, Article 11639 [Peer Reviewed Journal]

2018. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;The Author(s) 2018 ;ISSN: 2045-2322 ;EISSN: 2045-2322 ;DOI: 10.1038/s41598-018-29980-9 ;PMID: 30076314

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  • Title:
    Microplastic in riverine fish is connected to species traits
  • Author: McNeish, R E ; Kim, L H ; Barrett, H A ; Mason, S A ; Kelly, J J ; Hoellein, T J
  • Subjects: Abundance ; Aquatic ecosystems ; Body size ; Contaminants ; Data collection ; Ecology ; Ecosystem management ; Feeding ; Food contamination ; Food contamination & poisoning ; Food webs ; Freshwater ecosystems ; Inland waters ; Intestinal microflora ; Marine ecosystems ; Neogobius melanostomus ; Plastic debris ; Pollution ; Rivers ; Surface water ; Watersheds
  • Is Part Of: Scientific reports, 2018-08, Vol.8 (1), p.11639-12, Article 11639
  • Description: Microplastic is a contaminant of concern worldwide. Rivers are implicated as major pathways of microplastic transport to marine and lake ecosystems, and microplastic ingestion by freshwater biota is a risk associated with microplastic contamination, but there is little research on microplastic ecology within freshwater ecosystems. Microplastic uptake by fish is likely affected by environmental microplastic abundance and aspects of fish ecology, but these relationships have rarely been addressed. We measured the abundance and composition of microplastic in fish and surface waters from 3 major tributaries of Lake Michigan, USA. Microplastic was detected in fish and surface waters from all 3 sites, but there was no correlation between microplastic concentrations in fish and surface waters. Rather, there was a significant effect of functional feeding group on microplastic concentration in fish. Neogobius melanostomus (round goby, a zoobenthivore) had the highest concentration of gut microplastic (19 particles fish ) compared to 10 other fish taxa measured, and had a positive linear relationship between body size and number of microplastic particles. Surface water microplastic concentrations were lowest in the most northern, forested watershed, and highest in the most southern, agriculturally dominated watershed. Results suggest microplastic pollution is common in river food webs and is connected to species feeding characteristics. Future research should focus on understanding the movement of microplastic from point-source and diffuse sources and into aquatic ecosystems, which will support pollution management efforts on inland waters.
  • Publisher: England: Nature Publishing Group
  • Language: English
  • Identifier: ISSN: 2045-2322
    EISSN: 2045-2322
    DOI: 10.1038/s41598-018-29980-9
    PMID: 30076314
  • Source: PubMed Central
    ProQuest Central
    DOAJ Directory of Open Access Journals
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