Reproductive capacity of Pseudoplatystoma magdaleniatum in the presence of carbamazepine and methylparaben in the middle basins of the Cauca and Magdalena Rivers Colombia

ABSTRACT : Residues from personal care products, pharmaceuticals, perfumes, and cosmetics may be present in surface water, groundwater, and coastal water, because some are not efficiently removed in wastewater treatment plants. Some of these residues are known as emerging contaminants, such as bisphenol-A, nonylphenol, triclosan, polyaromatic hydrocarbons, benzophenones, methylparabens, medications, among others. The compounds chosen in this study, such as carbamazepine and methylparaben, have a great capacity for bioaccumulation in adipose and muscular tissues, which have the possibility of making changes in biological and biochemical processes of organisms and therefore in the food chain, being considered endocrine disruptors. of various animal species such as fish. In Colombia, the striped catfish is one of the most important endemic species in the Río Cauca and Río Magdalena basins, but unfortunately the population has decreased by more than 90% due to captures in the last 30 years together with the increase in volume of use of young specimens with small sizes, are basic indicators of the serious state of the striped catfish population in the Magdalena basin (Mojica et al., 2012). Likewise, the deterioration of the habitat due to contaminating agents in the area, mainly urban, industrial, mining and agricultural waste, has led to its being classified as an endangered species. In this research, the presence of emerging contaminants such as carbamazepine and methylparaben in the Cauca and Magdalena rivers and in the tissue of the P. magdaleniatum) was analyzed. In addition, biological biomarkers that allowed the identification of the endocrine disruption process were evaluated in vivo tests with fish exposed to contaminants, such as the evaluation of sperm quality, vitellogenin protein and hormones such as progesterone that binds to intracellular receptors in the nucleus and cytoplasm 11-ketotestosterone.

• Autores: Cacua Ortiz, Sylvia Maria
• Tipo de recurso: Doctoral thesis
• Fecha de publicación: 2023
• Institución: Universidad de Antioquia
• Repositorio: Repositorio UdeA
• Idioma: eng
• OAI Identifier: oai:bibliotecadigital.udea.edu.co:10495/36381
• Acceso en línea: https://hdl.handle.net/10495/36381
• Palabra clave: Carbamazepina; Carbamazepine; Bagre de agua dulce; Freshwater catfish; Río Cauca; Cauca River; Río Magdalena; Magdalena River; Bagre rayado; Endocrine disruption; Gametes; Methylparaben; http://aims.fao.org/aos/agrovoc/c_3103; http://aims.fao.org/aos/agrovoc/c_50050; http://aims.fao.org/aos/agrovoc/c_49971
• Rights: embargoedAccess
• License: http://creativecommons.org/licenses/by-nd/2.5/co/