Effects of estradiol and ethinylestradiol on sperm quality, fertilization, and embryo-larval survival of pejerrey fish (Odontesthes bonariensis)

Aquatic Toxicology
Ángela GárrizLeandro A Miranda

Abstract

17β-Estradiol (E2) and synthetic 17α-Ethinylestradiol (EE2) are estrogenic compounds present in surface waters as a consequence of municipal sewage discharges. The aim of this study was to evaluate the effects of E2, EE2 and its mixtures on different reproductive parameters and embryo-larval survival in pejerrey fish (Odontesthes bonariensis). In order to analyze the effect of these compounds on sperm quality, fertilization%, embryo-larval survival (%), and the point of no return (PNR), different assays were performed using concentrations 175, 350, 700 and 1400 ng/L of E2; 22.5, 45, 90 and 180 ng/L of EE2 and mixtures M1 (175 E2+22.5 EE2, ng/L), M2 (350 E2+45 EE2, ng/L), M3 (700 E2+90 EE2, ng/L) and M4 (1400 E2+180 EE2 ng/L). No significant differences in motility parameters were observed between E2 and EE2 treatments and the control group. However, a significant decrease in motility% was recorded for all mixtures tested compared with the control samples. For fertilization%, only sperm activated with M4 showed a significant decrease compared with the control group. In the case of embryo survival, there was only a significant decrease in the highest concentration of EE2 compared with the control group. For the mixtures, M3 is th...Continue Reading

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Citations

Mar 5, 2016·Environmental Science and Pollution Research International·Péter AvarZsolt Pirger
Sep 28, 2016·Bulletin of Environmental Contamination and Toxicology·Wen Ting Song, Zhi Jun Wang
Mar 9, 2018·Reproduction, Fertility, and Development·V Gallego, J F Asturiano
Mar 27, 2018·Endocrinology·Shuting XiongJie Mei
Sep 17, 2018·Environmental Science and Pollution Research International·Marco CapolupoMaria Laura Martín-Díaz

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