Skip to main content
Log in

Effect of copper exposure and recovery period in reared Diplodus sargus

  • Published:
Ecotoxicology Aims and scope Submit manuscript

Abstract

The aquaculture growth can be followed by the occurrence of more and new pathogenic agents, since the production leads to higher fish densities in confined areas more appropriate to the appearance and propagation of pathologies. Copper sulfate has been widely used in preventing and controlling fish parasites. The objective of this study is to investigate the effects of copper treatments in the fish tissues (bioaccumulation and histological changes in different organs), mortality and evaluate what happens during the recovery period. White sea bream (Diplodus sargus) were exposed to copper sulfate (0.25 and 0.5 mg L−1) during 60 days followed with a 75-day recovery period. The results showed that the concentration of copper in fish liver was significantly higher in the 0.5 mg L−1 treatment than in the 0.25 mg L−1 treatment. Conversely, copper load in the muscle did not differ significantly between treatments and control. Copper levels in muscle, and especially in liver, increased during copper exposure (up to 60 days). In summary, at higher concentrations copper sulfate treatment (0.5 mg L−1) might be toxic to fish, which showed histological alterations and copper accumulation in their tissues, mainly in the liver. Nevertheless, individuals returned to their original state after a 75-day recovery period and the tested copper concentrations does not represents risk for food safety.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5

Similar content being viewed by others

References

Download references

Acknowledgements

The authors are grateful to Dr Janine Sieben for her help in editing the English language of the manuscript.

Funding

This study was funded by Project DIVERSIAQUA (Mar2020 16-02-01-FMP-0066).

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Florbela Soares.

Ethics declarations

Conflict of interest

The authors declare that they have no conflict of interest.

Ethical approval

All applicable international, national, and/or institutional guidelines for the care and use of animals were followed. This article does not contain any studies with human participants performed by any of the authors.

Additional information

Publisher’s note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Vaz, C., Afonso, F., Barata, M. et al. Effect of copper exposure and recovery period in reared Diplodus sargus. Ecotoxicology 28, 1075–1084 (2019). https://doi.org/10.1007/s10646-019-02109-y

Download citation

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10646-019-02109-y

Keywords

Navigation