title: Presence of microplastic in the digestive tracts of European flounder, Platichthys flesus, and European smelt, Osmerus eperlanus, from the River Thames.
abstract: Like many urban catchments, the River Thames in London is contaminated with plastics. This pollutant is recorded on the river banks, in the benthic environment and in the water column. The present study was conducted to assess the extent of microplastic ingestion in two River Thames fish species, the European flounder (Platichthys flesus) and European smelt (Osmerus eperlanus). Samples were collected from two sites in Kent, England; Erith and Isle of Grain/Sheppey, near Sheerness, with the latter being more estuarine. The results revealed that up to 75% of sampled European flounder had plastic fibres in the gut compared with only 20% of smelt. This difference may be related to their diverse feeding behaviours: European flounder are benthic feeders whilst European smelt are pelagic predators. The fibres were predominantly red or black polyamides and other fibres included acrylic, nylon, polyethylene and polyethylene terephthalate and there was no difference in occurrence between the sites sampled.
authors.affiliation: School of Biological Sciences, Royal Holloway University of London, Egham, Surrey TW20 0EX, UK. Electronic address: alexandra.mcgoran.2012@live.rhul.ac.uk.
authors.forename: A R
authors.initials: AR
authors.lastname: McGoran
authors.affiliation: Department of Life Sciences, The Natural History Museum, Cromwell Road, London SW7 5BD, UK.
authors.forename: P F
authors.initials: PF
authors.lastname: Clark
authors.affiliation: School of Biological Sciences, Royal Holloway University of London, Egham, Surrey TW20 0EX, UK.
authors.forename: D
authors.initials: D
authors.lastname: Morritt
mesh_terms: D000818:Animals; D004739:England; D005432:Flounder; D041981:Gastrointestinal Tract; D008131:London; D036441:Osmeriformes; D010969:Plastics / Q000032:analysis*; D045483:Rivers; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D010969:Plastics; D014874:Water Pollutants, Chemical
keywords: Fibres; Microplastics; Osmerus eperlanus; Platichthys flesus; River Thames; United Kingdom