Resumo

CACUA-ORTIZ, Sylvia M.; AGUIRRE, Néstor J.  e  PENUELA, Gustavo A.. Effects of triclosan on sperm mobility in Oreochromis spp. Ing. compet. [online]. 2021, vol.23, n.1, e10031.  Epub 02-Jan-2021. ISSN 0123-3033.  https://doi.org/10.25100/iyc.23i1.10031.

Industrial development has generated the creation of new products that have improved the quality of life. In this way, the consumption of drugs, cosmetics, cleaning and personal care items, among others, has been promoted. These so-called emerging pollutants have been in frequent use in recent decades, causing strong pressure on aquatic habitats and being considered risk factors for the health of living beings. An example is triclosan (TCS), recognized for its fungicidal action and present in hygiene products such as antibacterials, personal care, liquid soaps and mouthwashes. Unfortunately, it has been found in raw and waste waters, interacting with aquatic ecosystems and affecting the quality of life of individuals, altering metabolic functions and consequently the trophic chain due to the effect of bioaccumulation. Thus, in this research, the effect of triclosan on the sperm motility was evaluated in sexually mature males of Oreochromis spp. that were subjected to an experimental design with three factors: triclosan concentration (0, 50, 120 and 190 µg / L), pH (7 and 9) and exposure time (0, 3 and 7 days). The results showed a significant decrease in fast mobility and therefore a significant increase for some treatments in medium and slow mobility. The results allow us to conclude that the interaction between the evaluated factors could influence the alteration of the sperm cell structure and the mitochondria, reducing their mobility due to a low synthesis of adenosine triphosphate.

Palavras-chave : Emerging Contaminants; Endocrine Disruption; Gametes; Tilapia spp.; Triclosan.

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