cladocerans Archives - One Earth - One Ocean e. V. https://oneearth-oneocean.com/en/tag/cladocerans-en/ Eine weitere WordPress-Website Sun, 22 Dec 2013 19:51:54 +0000 en-US 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 cladocerans Archives - One Earth - One Ocean e. V. https://oneearth-oneocean.com/en/tag/cladocerans-en/ 32 32 Ingestion and transfer of microplastics in the planktonic food web, Environmental Pollution https://oneearth-oneocean.com/en/research-en/2013/ingestion-and-transfer-of-microplastics-in-the-planktonic-food-web-environmental-pollution/ https://oneearth-oneocean.com/en/research-en/2013/ingestion-and-transfer-of-microplastics-in-the-planktonic-food-web-environmental-pollution/#respond Sun, 22 Dec 2013 19:51:54 +0000 https://oneearth-oneocean.com/2013/12/22/ingestion-and-transfer-of-microplastics-in-the-planktonic-food-web-environmental-pollution/ Outi Setälä, Vivi Fleming-Lehtinen, Maiju Lehtiniemi, Ingestion and transfer of microplastics in the planktonic food web, Environmental Pollution, Volume 185, February 2014, Pages 77-83, ISSN 0269-7491, http://dx.doi.org/10.1016/j.envpol.2013.10.013. (http://www.sciencedirect.com/science/article/pii/S0269749113005411) Abstract: Experiments were carried out with different Baltic Sea zooplankton taxa to scan their potential to ingest plastics. Mysid shrimps, copepods, cladocerans, rotifers, polychaete larvae and ciliates were exposed to 10 μm fluorescent polystyrene microspheres. These experiments showed ingestion of microspheres in all taxa studied. The highest percentage of individuals with ingested spheres was found in pelagic polychaete larvae, Marenzelleria spp. Experiments with the copepod Eurytemora affinis and the mysid shrimp Neomysis integer showed egestion of microspheres within 12 h. Food web transfer experiments were done by offering zooplankton labelled with ingested microspheres to mysid shrimps. Microscopy observations of mysid intestine showed the presence of zooplankton prey and microspheres after 3 h incubation. This study shows for the first time the potential of plastic microparticle transfer via planktonic organisms from one trophic level (mesozooplankton) to a higher level (macrozooplankton). The impacts of plastic transfer and possible accumulation in the food web need further investigations. Keywords: Microplastic litter; Zooplankton; Trophic transfer; Planktonic food web

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]]> Outi Setälä, Vivi Fleming-Lehtinen, Maiju Lehtiniemi, Ingestion and transfer of microplastics in the planktonic food web, Environmental Pollution, Volume 185, February 2014, Pages 77-83, ISSN 0269-7491, http://dx.doi.org/10.1016/j.envpol.2013.10.013. (http://www.sciencedirect.com/science/article/pii/S0269749113005411) Abstract: Experiments were carried out with different Baltic Sea zooplankton taxa to scan their potential to ingest plastics. Mysid shrimps, copepods, cladocerans, rotifers, polychaete larvae and ciliates were exposed to 10 μm fluorescent polystyrene microspheres. These experiments showed ingestion of microspheres in all taxa studied. The highest percentage of individuals with ingested spheres was found in pelagic polychaete larvae, Marenzelleria spp. Experiments with the copepod Eurytemora affinis and the mysid shrimp Neomysis integer showed egestion of microspheres within 12 h. Food web transfer experiments were done by offering zooplankton labelled with ingested microspheres to mysid shrimps. Microscopy observations of mysid intestine showed the presence of zooplankton prey and microspheres after 3 h incubation. This study shows for the first time the potential of plastic microparticle transfer via planktonic organisms from one trophic level (mesozooplankton) to a higher level (macrozooplankton). The impacts of plastic transfer and possible accumulation in the food web need further investigations. Keywords: Microplastic litter; Zooplankton; Trophic transfer; Planktonic food web

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