Skip to main content
Log in

Physiological and metabolic alterations induced by commercial neonicotinoid formulations in Daphnia magna

  • Published:
Ecotoxicology Aims and scope Submit manuscript

Abstract

Neonicotinoid insecticides are widely used agents in agriculture to control a broad range of insect pests. Although use of neonicotinoid pesticides has resulted in the widespread contamination of surface waters, sublethal toxicity data of these products in relation to non-target aquatic biota are still poor. Therefore, the objective of this study was to assess the effects of two neonicotinoid pesticides with widespread use on the basic physiological functions: the thoracic limb activity and heart rate of Daphnia magna, and to screen for their potential to affect the cytochrome P450 monooxygenase system (ECOD activity) of daphnids. The considered pesticides were the acetamiprid- and thiacloprid based products Mospilan 20 SG and Calypso 480 SC, respectively. The dose-dependent variation in the three biological endpoints considered were assessed following 24 h exposures. The two neonicotinoid formulations elicited significant depression on the thoracic limb activity and heart rate of daphnids at doses close to the immobility thresholds of formulations (48h-EC50: Mospilan 20 SG = 190 mg L−1; Calypso 480 SC = 120 mg L−1), an effect mainly attributable to the overall drop in the general health status of the organisms. The alterations in the physiological traits were significant at exposures to 190 mg L−1 for Mospilan 20 SG and 48 mg L−1 for Calypso 480 SC. The dose related variation in the ECOD activity of daphnids exposed to the selected neonicotinoid formulations followed a biphasic pattern, with starting effective doses for Mospilan 20 SG of 6.3 mg L−1 (=1/20 of 48h-EC50 for Daphnia neonates), and for Calypso 480 SC of 0.034 mg L−1 (=1/4000 of 48h-EC50). Maximal ECOD activity (2.2 fold increase vs. controls) was induced by Mospilan 20 SG in daphnids exposed to 114 mg L−1 product (=48 h-EC20), and by Calypso 480 SC (1.8 fold increase) at 5.2 mg L−1 dose (=1/20 of 48 h-EC50). Our results outlined significant alterations in the physiological traits and ECOD activity in exposed daphnids at concentrations below the immobility thresholds (48 h-EC50) of the products used as benchmarks to rate their toxicity risks to aquatic biota. Therefore, we think our findings might deserve consideration in the environmental risk evaluation of these products.

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

Similar content being viewed by others

Data availability

The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.

References

Download references

Acknowledgements

This project was supported by the Hungarian Scientific Research Fund OTKA K-112712. The authors express their special thanks to Zsuzsa Fekete for her assistance in experimental work.

Author information

Authors and Affiliations

Authors

Contributions

AF: conceptualization, methodology, formal analysis, investigation, writing—original draft. DS: formal analysis, investigation. AWK: methodology, formal analysis, investigation, writing—original draft. MM: methodology, formal analysis, writing—original draft, funding acquisition. AS: resources, writing—original draft. JG: conceptualization, funding acquisition, writing—original draft. All authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

Corresponding author

Correspondence to Anna Farkas.

Ethics declarations

Conflict of interest

The authors declare no competing interests.

Ethical approval

All applicable international, national and institutional guidelines for the care and use of animals were followed.

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

Farkas, A., Somogyvári, D., Kovács, A.W. et al. Physiological and metabolic alterations induced by commercial neonicotinoid formulations in Daphnia magna. Ecotoxicology 31, 415–424 (2022). https://doi.org/10.1007/s10646-022-02520-y

Download citation

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10646-022-02520-y

Keywords

Navigation