Insecticides Cypermethrin and Chlorpyrifos Exposure: Effects on Sperm Motility and Fertility in Cyprinus carpio (Cypriniformes, Cyprinidae)

Authors

  • Federico Argemi Oceanic Aquarium, Balneario Camboriú, SC, Brazil ; Centro de Investigaciones del Medioambiente (CIM), Facultad de Ciencias Exactas. CONICET- Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina ; Aquam Research Group, Animal Science Research Program, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
  • Andrés Atilio Porta Centro de Investigaciones del Medioambiente (CIM), Facultad de Ciencias Exactas. CONICET- Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina
  • Danilo Streit Jr. Aquam Research Group, Animal Science Research Program, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil ; Postgraduate Program in Veterinary Science, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
  • Rômulo Batista Rodrigues Aquam Research Group, Animal Science Research Program, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
  • Jhony Lisboa Benato Aquam Research Group, Animal Science Research Program, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
  • Fabiana Lo Nostro Laboratorio de Ecotoxicología Acuática, Instituto de Biodiversidad y Biología Experimental Aplicada (IBBEA), CONICET- Universidad de Buenos Aires, Buenos Aires, Argentina ; Departamento de Biodiversidad y Biología Experimental, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina

DOI:

https://doi.org/10.5132/eec.2024.01.03

Keywords:

Fish, Insecticide, Organophosphate, Pyretroid, Sperm, Fertility

Abstract

The agricultural production of the Argentine Pampa is based on intensive cultures, and the most widely used insecticides correspond to cypermethrin (pyrethroid) and chlorpyrifos (organophosphate), among others. Sperm motility and fertility assessments are essential topics for biology and population dynamics studies on fish species. In this study the alterations of these endpoints after exposure to commercial formulation of both insecticides were used to analyze the effects on common carp sperm. After the in vitro exposure at nominal concentrations of 0.25, 0.5, 1, and 2 μg/L of cypermethrin, a significant reduction in motility in 0.5 μg/L concentrations was observed respect control group. The same nominal concentrations were tested for chlorpyrifos, and the same significative effect was detected at 2.0 μg/L. Fertilization rate was significantly reduced at concentrations from 0.5 μg/L cypermethrin exposure, and from 1.0 μg/L in the case of chlorpyrifos. Eggs LC50 / 24 h (95% confidence limit) exposed to cypermethrin was 0.57 μg/L (0.36 - 0.88), and exposed to chlorpyrifos was 2.45 μg/L (1.13-5.29). However, is still debatable how these insecticides impact on fish reproduction, using this in vitro scenario we found a clear reduction in sperm motility and fertility.

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Published

19-07-2024

How to Cite

Argemi, F., Porta, A. A., Streit Jr., D., Rodrigues, R. B., Benato, J. L., & Nostro, F. L. (2024). Insecticides Cypermethrin and Chlorpyrifos Exposure: Effects on Sperm Motility and Fertility in Cyprinus carpio (Cypriniformes, Cyprinidae). Ecotoxicology and Environmental Contamination, 19(1), 20–29. https://doi.org/10.5132/eec.2024.01.03

Issue

Vol. 19 No. 1 (2024)

Section

Original Articles

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