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Microplastic contamination of the drilling bivalve Hiatella arctica in Arctic rhodolith beds

Title data

Teichert, Sebastian ; Löder, Martin G. J. ; Pyko, Ines ; Mordek, Marlene ; Schulbert, Christian ; Wisshak, Max ; Laforsch, Christian:
Microplastic contamination of the drilling bivalve Hiatella arctica in Arctic rhodolith beds.
In: Scientific Reports. Vol. 11 (16 July 2021) Issue 1 . - No. 14574.
ISSN 2045-2322
DOI: https://doi.org/10.1038/s41598-021-93668-w

Project information

Project title:
Project's official titleProject's id
SFB 1357 MikroplastikSFB1357
General Electric/Phoenix v|tome|x S 240 µCT, reference number 274877207274887707

Project financing: Deutsche Forschungsgemeinschaft

Abstract in another language

There is an increasing number of studies reporting microplastic (MP) contamination in the Arctic environment. We analysed MP abundance in samples from a marine Arctic ecosystem that has not been investigated in this context and that features a high biodiversity: hollow rhodoliths gouged by the bivalve Hiatella arctica. This bivalve is a filter feeder that potentially accumulates MPs and may therefore reflect MP contamination of the rhodolith ecosystem at northern Svalbard. Our analyses revealed that 100% of the examined specimens were contaminated with MP, ranging between one and 184 MP particles per bivalve in samples from two water depths. Polymer composition and abundance differed strongly between both water depths: samples from 40 m water depth showed a generally higher concentration of MPs and were clearly dominated by polystyrene, samples from 27 m water depth were more balanced in composition, mainly consisting of polyethylene, polyethylene terephthalate, and polypropylene. Long-term consequences of MP contamination in the investigated bivalve species and for the rhodolith bed ecosystem are yet unclear. However, the uptake of MPs may potentially impact H. arctica and consequently its functioning as ecosystem engineers in Arctic rhodolith beds.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: Environmental sciences; Ecology; Microplastics
Institutions of the University: 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 Biology > Chair Animal Ecology I > Chair Animal Ecology I - Univ.-Prof. Dr. Christian Laforsch
Profile Fields > Advanced Fields > Polymer and Colloid Science
Profile Fields > Advanced Fields > Ecology and the Environmental Sciences
Research Institutions > Research Centres
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Research Institutions > Collaborative Research Centers, Research Unit > SFB 1357 - MIKROPLASTIK
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 500 Natural sciences
500 Science > 530 Physics
500 Science > 540 Chemistry
500 Science > 550 Earth sciences, geology
500 Science > 570 Life sciences, biology
Date Deposited: 19 Jul 2021 08:32
Last Modified: 19 Jul 2021 08:32
URI: https://eref.uni-bayreuth.de/id/eprint/66567