How can different land use impact aquatic organisms? An evaluation of metabolic alterations during embryonic development of freshwater fish, Rhamdia quelen

Authors

  • Camila Maria Toigo de Oliveira Piffero Conservation and Management of Natural Resources Postgraduate Program, Universidade Estadual do Oeste do Paraná, Cascavel, Paraná, Brazil.
  • Silvia Romão Graduate Program in Agroecology and Sustainable Development, Universidade Federal da Fronteira Sul. Laranjeiras do Sul, Paraná, Brazil
  • Luisa Helena Cazarolli Graduate Program in Agroecology and Sustainable Development, Universidade Federal da Fronteira Sul. Laranjeiras do Sul, Paraná, Brazil
  • Cristian Zwetzch do Nascimento Fingerling production unit, Cooperativa Agroindustrial Consolata, Nova Aurora, Paraná, Brazil.
  • Thaís Maylin Sobjak Department of Morphology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.
  • Lucélia Donatti Adaptive Biology Laboratory, Department of Cell Biology, Universidade Federal do Parana, Curitiba, Parana, Brazil.
  • Maria Rosa Dmengeon Adaptive Biology Laboratory, Department of Cell Biology, Universidade Federal do Parana, Curitiba, Parana, Brazil.
  • Ana Tereza Bittencourt Guimarães Conservation and Management of Natural Resources Postgraduate Program, Universidade Estadual do Oeste do Paraná, Cascavel, Paraná, Brazil. Biosciences and Health Postgraduate Program, Universidade Estadual do Oeste do Paraná, Cascavel, Paraná, Brazil.

DOI:

https://doi.org/10.5132/eec.2022.02.11

Keywords:

agriculture, antioxidant systemn, energetic metabolism, silver catfish, early life stage, xenobiotics

Abstract

Chemical compounds used in agricultural activities are constantly leaching to water bodies where they can potentially cause damage to non-target organisms. In this study, we attempt to understand how the change in land use and exposure to xenobiotic substances may alter the metabolism and neurotoxicity during the development of native fish. Embryonic development of Rhamdia quelen was used as a quality indicator of two different aquatic environments, a stream considered impacted (Tormenta) and another reference (Manoel Gomes). The eggs were exposed to water collected from the reference and impacted streams during the development period (12h, 24h, 48h, and, 72h). Changes in the activity of energy metabolism enzymes (HK, PFK, LDH, CS, MDH) and the antioxidant defense system (CAT, GPX, GR, GST) were observed in animals exposed to impacted stream water. The entry of xenobiotic compounds into rivers through the leaching of chemical molecules existent in the soil causes activation of enzymes with a detoxification function. Furthermore, inhibition of cholinesterase enzyme activity indicates contamination by anticholinesterase compounds such as organophosphates and carbamates. Sites with constant use of these compounds can trigger harmful effects to organisms in the early stages of fish development and alter the body's metabolic and defense enzymatic activities.

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Published

08-05-2023

How to Cite

Toigo de Oliveira Piffero, C. M., Romão, S., Cazarolli, L. H., Zwetzch do Nascimento, C., Sobjak, T. M., Donatti, L., Dmengeon, M. R., & Guimarães, A. (2023). How can different land use impact aquatic organisms? An evaluation of metabolic alterations during embryonic development of freshwater fish, Rhamdia quelen. Ecotoxicology and Environmental Contamination, 17(2), 99–114. https://doi.org/10.5132/eec.2022.02.11

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Original Articles

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