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Bioaccumulation of Copper and Zinc and the Effects on Antioxidant Enzyme Activities in the Liver of Acipenser stellatus (Pallas, 1771)

  • Daniela Vasile
  • Gisela Gaina
  • Lucian Cristian Petcu
  • Dragomir Coprean
  • Lucica TofanEmail author
  • Anca Dinischiotu
Article

Abstract

Although water pollution by metals in the Danube River is considered high, little is known about its impact on sturgeons. In this regard, the aim of this study was to investigate the bioaccumulation of copper and zinc as well as their effects on antioxidant enzymes activities in the liver of Acipenser stellatus. The fish were exposed for 7 and 14 days, to two concentrations of copper and zinc (10% and 25% of LC50 96 h), previously determined as 0.54 mg/L Cu2+ and, 34.22 mg/L Zn2+ respectively. The enzymatic responses of A. stellatus varied greatly depending on metal type, concentration and time. Significant bioaccumulation of the two metals was recorded. Even though the water hardness used in the experiment is known to offer a clear protection against metal contamination, stellate sturgeon remains a sensitive species in the face of metal toxicity.

Keywords

Acipenser stellatus Copper and zinc Antioxidant enzymes Bioaccumulation 

Notes

Acknowledgements

We bring our gratitude to Prof. Ph.D. Patriche Neculai, director of Institute of Research and Development for Aquaculture, Fishing and Aquatic Ecology from Galati and to Ph.D. Eng. Magdalena Tenciu for all their scientific and technical support.

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© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Faculty of Natural and Agricultural Sciences“Ovidius” University ConstantaConstanţaRomania
  2. 2.Department of Biochemistry and Molecular BiologyUniversity of BucharestBucharestRomania

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