Oxidative stress induced by nanoplastics in the liver of juvenile large yellow croaker Larimichthys crocea

There are many toxicological studies on microplastics, but little is known about the effect of nanoplastics (NPs). Here, we evaluated the oxidative stress responses induced by NPs (10, 104 and 106 particles/l) in juvenile Larimichthys crocea during 14-d NPs exposure followed by a 7-d recovery. After...

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Bibliographic Details
Published in:Marine pollution bulletin 2021-09, Vol.170, p.112661-112661, Article 112661
Main Authors: Li, Li'ang, Gu, Huaxin, Chang, Xueqing, Huang, Wei, Sokolova, Inna M., Wei, Shuaishuai, Sun, Li, Li, Shanglu, Wang, Xinghuo, Hu, Menghong, Zeng, Jiangning, Wang, Youji
Format: Article
Language:English
Subjects:
Antioxidants
Biological stress
Exposure
Fish
Fisheries
Juvenile fish
Juveniles
Larimichthys crocea
Lipid peroxidation
Lipids
Liver
Microplastics
Nanoplastics
Oxidative stress
Peroxidation
Plastic pollution
Recovery
Survival
Toxicity testing
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Summary:There are many toxicological studies on microplastics, but little is known about the effect of nanoplastics (NPs). Here, we evaluated the oxidative stress responses induced by NPs (10, 104 and 106 particles/l) in juvenile Larimichthys crocea during 14-d NPs exposure followed by a 7-d recovery. After exposure, the activities of antioxidant enzymes (SOD, CAT, GPx) and MDA levels increased in the liver of fish at the highest NPs concentration. SOD and CAT activities remained elevated above the baseline after recovery under high-concentration NPs but returned to the baseline in two other NP treatments. Although lipid peroxidation in liver was reversible, juvenile fish in NPs treatments exhibited a lower survival rate than the control during both exposure and recovery. Furthermore, IBR value and PCA analysis showed the potential adverse effects of NPs. Considering that NPs can reduce the survival of fish juveniles, impacts of NPs on fishery productivity should be considered. [Display omitted] •Nanoplastics induced oxidative stress in the liver of juvenile fish.•Nanoplastics showed latent effects on antioxidant responses in fish liver.•Nanoplastics resulted in low survival rate of juvenile fish.•After depuration antioxidant performance showed a recovery trend but not survival.
ISSN:0025-326X
1879-3363
DOI:10.1016/j.marpolbul.2021.112661