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Shape, size, and polymer dependent effects of microplastics on Daphnia magna

Title data

Schwarzer, Michael ; Brehm, Julian ; Vollmer, Martina ; Jasinski, Julia ; Xu, Chengzhang ; Zainuddin, Shakir ; Fröhlich, Thomas ; Schott, Matthias ; Greiner, Andreas ; Scheibel, Thomas ; Laforsch, Christian:
Shape, size, and polymer dependent effects of microplastics on Daphnia magna.
In: Journal of Hazardous Materials. Vol. 426 (2022) . - No. 128136.
ISSN 0304-3894
DOI: https://doi.org/10.1016/j.jhazmat.2021.128136

Project information

Project title:
Project's official titleProject's id
SFB 1357 Mikroplastik391977956

Project financing: Deutsche Forschungsgemeinschaft

Abstract in another language

The effects of microplastic (MP) pollution on organisms are gaining increasing attention. To date, a variety of polymers of different shapes and sizes are used in ecotoxicology. Although polystyrene (PS) is the predominant polymer type used in effect studies, it is still unclear whether the observed effects derive from the polymer itself or from a certain particle shape and size. To elucidate whether the effects are polymer specific, we conducted a systematic study on Daphnia magna by comparing various PS-MPs to nonplastic control particles with similar properties. In chronic exposure experiments, we used PS beads (6 µm; 20 µm), fibers (Ø 3 µm, length: 75.5 µm), and fragments (5.7 µm; 17.7 µm) in two different size classes and two different concentrations (500 and 5000 particles ml-1) and in-house-produced control particles of comparable size, shape, concentration and, if possible, density. Although most PS properties did not elicit effects on the tested endpoints, we observed sublethal effects on D. magna life history and morphology for small PS beads and fragments. Interestingly, no adverse effects were detected for any of the control particles. Hence, the observed effects are polymer-specific, related to the size and shape of the polymer, and do not result from particle exposure per se.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: Microplastics; Polymer dependent effect; Daphnia; Hazard assessment; Control particles
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Chair Animal Ecology I > Chair Animal Ecology I - Univ.-Prof. Dr. Christian Laforsch
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II > Chair Macromolecular Chemistry II - Univ.-Prof. Dr. Andreas Greiner
Faculties > Faculty of Engineering Science > Chair Process Biotechnology > Chair Process Biotechnology - Univ.-Prof. Dr. Ruth Freitag
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Research Institutions > Collaborative Research Centers, Research Unit > SFB 1357 - MIKROPLASTIK
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Chair Animal Ecology I
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II
Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Process Biotechnology
Research Institutions
Research Institutions > Research Centres
Research Institutions > Collaborative Research Centers, Research Unit
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 540 Chemistry
500 Science > 570 Life sciences, biology
500 Science > 590 Animals (Zoology)
600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 11 Jan 2022 08:10
Last Modified: 05 Jul 2022 13:24
URI: https://eref.uni-bayreuth.de/id/eprint/68285