Histopathological measures in gills of Common carp, Cyprinus carpio (Linnaeus, 1875) after xenobiotics exposure

Eleonora Petkova
2021 Zenodo  
We aimed to determine the negative effects of decreasing concentrations of chlorpyrifos (CPF) and cypermethrin (CYP) based on the EU legislation on common carp (Cyprinus carpio Linnaeus, 1758) in laboratory conditions. The fish were exposed to the pesticides for 96 hours and 30 days. Therefore, histological biomarkers in the gills, were investigated. After 96 hours, we found mainly intense proliferative changes and to a lesser extent - degenerative changes and changes in the circulatory system,
more » ... circulatory system, such as necrosis and vasodilatation. Moreover, after 30 days exposure, we established more intense degenerative changes, as well as changes in the circulatory system along with the observed proliferation. Overall, both tested pesticides impacted the studied biomarkers in common carp, even at lower than the permissible concentrations set by law. However, the results on the analysis showed a relatively higher toxicity of CYP compared to CPF on the fish. To avoid danger or risk, a cautious application of these pesticides must be carried out, especially near water bodies.
doi:10.5281/zenodo.4643704 fatcat:leyqmtsljnb4ro7trilvsktrby