PCB-126 spiked to polyethylene microplastic ingested by juvenile Atlantic cod (Gadus morhua) accumulates in liver and muscle tissues
Publication details
Journal : Marine Pollution Bulletin , vol. 187 , p. 1–6 , Wednesday 4. January 2023
Publisher : Elsevier
International Standard Numbers
:
Printed
:
0025-326X
Electronic
:
1879-3363
Publication type : Academic article
Links
:
ARKIV
:
hdl.handle.net/11250/3063851
DOI
:
doi.org/10.1016/j.marpolbul.20...
Research areas
Sustainability
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Kjetil Aune
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Summary
In the present study, polyethylene (PE) microplastics (150–300 μm) were added to Atlantic cod (Gadus morhua) feeds at 1 %, either in their present form (Virgin PE) or spiked with PCB-126 (Spiked PE). The feeds were given to juvenile cod for a 4-week period. The fish grew from 11 to 23 g with no significant difference between dietary treatments. Cod fed spiked PE showed a significantly higher concentration of PCB-126 in liver and muscle samples compared to control and fish ingesting virgin PE. In accordance with the accumulation of PCB-126 in the liver, the expression of hepatic cyp1a was higher in cod fed spiked PE. Notably, we observed that spiked PE, as well as virgin PE, have an effect on skin. Overall changes indicated a reduced skin barrier in fish fed a diet containing PE. Indicating that PE itself through interaction with gut tissue may influence skin health in fish.
