Effects of nickel oxide nanoparticles on survival, reproduction, and oxidative stress biomarkers in the marine calanoid copepod Centropages ponticus under short-term exposure

Type Article
Date 2021-05
Language English
Author(s) Djebbi EmnaORCID1, Bonnet Delphine2, Pringault Olivier3, Tlili Khawla4, Yahia Mohamed Néjib Daly5
Affiliation(s) 1 : Faculty of Sciences of Bizerte, Carthage University, 7021, Zarzouna, LR18ES41 (Tunis El Manar University), 1082, Tunis, Tunisia
2 : Univ. Montpellier, CNRS, Ifremer, IRD, MARBEC, Montpellier, France
3 : Aix Marseille Univ, Université de Toulon, CNRS, IRD, MIO UM 110, 13288, Marseille, France
4 : LEBPAO, Faculty of Sciences of Tunis, University of Tunis, El Manar, FSB, Zarzouna, 7021, Bizerte, Tunisia
5 : Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, PO Box 2713, Doha, Qatar
Source Environmental Science And Pollution Research (0944-1344) (Springer Science and Business Media LLC), 2021-05 , Vol. 28 , N. 17 , P. 21978-21990
DOI 10.1007/s11356-020-11781-1
Keyword(s) Metal oxide nanoparticle, Copepods, Acute toxicity test, Egg production, Egg hatching success, Antioxidant enzymes
Abstract

Excessive use of nickel oxide nanoparticles (NiO NPs) in various industrial and commercial products can lead to various negative effects in human and environmental health due to their possible discharge into the environment. Nerveless, information about their ecotoxicological effects on marine organisms are lacking. Copepods are good ecotoxicological models because of their high sensitivity to environmental stress and their key role in the marine food webs. In this study, 48 h acute tests were conducted on the marine planktonic copepod Centropages ponticus to assess lethal and sublethal toxicities of NiO NPs. The results revealed LC50 (48 h) of 4 mg/L for adult females. Aggregation and settling of NiO NPs were observed at concentrations ≥ 2 mg/L. Exposure to sublethal concentrations (≥ 0.02 mg/L for 48 h) had significant negative effects on reproductive success in C. ponticus. Egg production after 24 h and 48 h decreased by 32% and 46%, respectively at 0.02 mg/L and 70% and 82%, respectively, at 2 mg/L. Hatching success was reduced by 70% and 79% at 2 mg/L for eggs produced after 24 h and 48 h respectively. Antioxidant enzymatic activity increased significantly with NiO NP concentration and time, indicating that NiO NPs can cause oxidative stress in C. ponticus even under short-term exposure, while significant inhibition of acetylcholinesterase activity at 2 mg/L after 48 h suggests neurotoxic effects of NiO NPs.

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Djebbi Emna, Bonnet Delphine, Pringault Olivier, Tlili Khawla, Yahia Mohamed Néjib Daly (2021). Effects of nickel oxide nanoparticles on survival, reproduction, and oxidative stress biomarkers in the marine calanoid copepod Centropages ponticus under short-term exposure. Environmental Science And Pollution Research, 28(17), 21978-21990. Publisher's official version : https://doi.org/10.1007/s11356-020-11781-1 , Open Access version : https://archimer.ifremer.fr/doc/00668/78000/