exposure Archives - One Earth - One Ocean e. V. https://oneearth-oneocean.com/tag/exposure/ Wed, 05 Jul 2023 05:56:18 +0000 de-DE hourly 1 https://wordpress.org/?v=6.5.5 https://oneearth-oneocean.com/wp-content/uploads/2022/08/cropped-oeoo-logo-unterzeile-blau-1-32x32.jpg exposure Archives - One Earth - One Ocean e. V. https://oneearth-oneocean.com/tag/exposure/ 32 32 The influence of exposure and physiology on microplastic ingestion by the freshwater fish Rutilus rutilus (roach) in the River Thames, UK https://oneearth-oneocean.com/international-marine-litter-database-en/2021/the-influence-of-exposure-and-physiology-on-microplastic-ingestion-by-the-freshwater-fish-rutilus-rutilus-roach-in-the-river-thames-uk/ Thu, 18 Mar 2021 16:36:55 +0000 https://oneearth-oneocean.com/?p=9376 Alice A. Horton, Monika D. Jürgens, Elma Lahive, Peter M. van Bodegom, Martina G. Vijver, The influence of exposure and physiology on microplastic ingestion by the freshwater fish Rutilus rutilus (roach) in the River Thames, UK, Environmental Pollution, Volume 236, May 2018, Pages 188-194, ISSN 0269-7491, Abstract: Microplastics are widespread throughout aquatic environments. However, there is currently insufficient understanding of the factors influencing ingestion of microplastics by organisms, especially higher predators such as fish. In this study we link ingestion of microplastics by the roach Rutilus rutilus, within the non-tidal part of the River Thames, toexposure and physiological factors. Microplastics were found within the gut contents of roach from six out of seven sampling sites. Of sampled fish, 33% contained at least one microplastic particle. The majority of particles were fibres (75%), with fragments and films also seen (22.7%and 2.3% respectively). Polymers identified were polyethylene, polypropylene and polyester, in addition to a synthetic dye. The maximum number of ingested microplastic particles for individual fish was strongly correlated to exposure (based on distance from the source of the river). Additionally, at a given exposure, the size of fish correlated with the actual quantity of microplastics in the gut. Larger (mainly female) fish were more likely to ingest the maximum possible number of particles than smaller (mainly male) fish. This study is the first to show microplastic ingestion within freshwater fish in the UK and provides valuable new evidence of the factors influencing ingestion that can be used to inform future studies on exposure and hazard of microplastics to fish. https://www.sciencedirect.com/science/article/pii/S0269749117330713/pdfft?md5=28409989d93f6c1af344fb33104b1f93&pid=1-s2.0-S0269749117330713-main.pdf https://drive.google.com/open?id=1R74szRwtHpOIiP41-NoeXXD8kLq6Wcej https://doi.org/10.1016/j.envpol.2018.01.044. (https://www.sciencedirect.com/science/article/pii/S0269749117330713)

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]]> Alice A. Horton, Monika D. Jürgens, Elma Lahive, Peter M. van Bodegom, Martina G. Vijver,

The influence of exposure and physiology on microplastic ingestion by the freshwater fish Rutilus rutilus (roach) in
the River Thames, UK,

Environmental Pollution, Volume 236, May 2018, Pages 188-194, ISSN 0269-7491,

Abstract:
Microplastics are widespread throughout aquatic environments. However, there is currently insufficient understanding of the factors influencing ingestion of microplastics by organisms, especially higher predators
such as fish.

In this study we link ingestion of microplastics by the roach Rutilus rutilus, within the non-tidal part of the River Thames, toexposure and physiological factors.
Microplastics were found within the gut contents of roach from six out of seven sampling sites.
Of sampled fish, 33% contained at least one microplastic particle. The majority of particles were fibres (75%), with fragments and films also seen (22.7%and 2.3% respectively).
Polymers identified were polyethylene, polypropylene and polyester, in addition to a synthetic dye. The maximum number of ingested microplastic particles for individual fish was strongly correlated to exposure (based on distance from the source of the river).
Additionally, at a given exposure, the size of fish correlated with the actual quantity of microplastics in the gut. Larger
(mainly female) fish were more likely to ingest the maximum possible number of particles than smaller (mainly male) fish.
This study is the first to show microplastic ingestion within freshwater fish in the UK and provides valuable new evidence of the factors influencing ingestion that can be used to inform future studies on exposure and hazard of microplastics to fish.

https://www.sciencedirect.com/science/article/pii/S0269749117330713/pdfft?md5=28409989d93f6c1af344fb33104b1f93&pid=1-s2.0-S0269749117330713-main.pdf

https://drive.google.com/open?id=1R74szRwtHpOIiP41-NoeXXD8kLq6Wcej

https://doi.org/10.1016/j.envpol.2018.01.044.

(https://www.sciencedirect.com/science/article/pii/S0269749117330713)

The post The influence of exposure and physiology on microplastic ingestion by the freshwater fish Rutilus rutilus (roach) in the River Thames, UK appeared first on One Earth - One Ocean e. V..

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