Microplastic Consumption and Its Effect on Respiration Rate and Motility of Calanus helgolandicus From the Marmara Sea

Date

2020-12-01

Author

Isinibilir, Melek
Svetlichny, Leonid
Mykitchak, Taras
Turkeri, Ezgi E.
Eryalcin, Kamil Mert
Dojan, Onur
Can, Gulsah
Yuksel, Esin
Kıdeyş, Ahmet Erkan

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Consumption rates of polystyrene microplastics (beads of 6, 12, and 26 mu m diameter) and their effects on energy metabolism and motor activity of the copepod Calanus helgolandicus living in the Marmara Sea were investigated. All sizes of microplastic particles were actively consumed and excreted via fecal pellets, however, copepods displayed a significant preference for beads sized 6 mu m. In a mixture of algae and microplastics beads of 6 mu m, microplastics consumption rates linearly (r(2) = 0.78, n = 154) increased 800 times from 50.8 +/- 17.3 to 8,612 +/- 5,972 beads ind(-1) day(-1) with an increase in bead concentration from 10 to 44,000 beads ml(-1). The total and basal metabolic rates as well as time spent swimming for C. helgolandicus, decreased 1.7, 1.8 and about 3-fold, respectively after 7-8 days exposure to microplastic treatments, which was similar to the metabolism and activity of starving animals in filtered water. In copepods consuming microplastics, all vital parameters decreased on the first day of exposure, indicating either accelerated starvation, probably due to increased losses of energy and biological matter in the formation of fecal pellets and/or traumatic/toxic effects of the polystyrene beads on the copepods. Our data from laboratory experiments indicate that the presence of large concentrations of microplastics in water, even when mixed with algae, lowered energy metabolism levels of C. helgolandicus.

Subject Keywords

Aquatic Science, Global and Planetary Change, Ocean Engineering, Oceanography, Water Science and Technology

URI

https://hdl.handle.net/11511/88499

Journal

FRONTIERS IN MARINE SCIENCE

DOI

https://doi.org/10.3389/fmars.2020.603321

Collections

Graduate School of Marine Sciences, Article

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Citation Formats

M. Isinibilir et al., “Microplastic Consumption and Its Effect on Respiration Rate and Motility of Calanus helgolandicus From the Marmara Sea,” FRONTIERS IN MARINE SCIENCE, pp. 0–0, 2020, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/88499.