Glyphosate and its formulated product Roundup Transorb R® affect locomotor activity and reproductive and developmental parameters in Jenynsia lineata fish: An intergenerational study

被引：1

作者：

Moraes J.S. ^{[1
]}

Ballesteros M.L. ^{[2
,3
]}

Hued A.C. ^{[2
,3
]}

Bonifacio A.F. ^{[2
,3
]}

Azambuja T.G. ^{[4
]}

Vaz B.D.S. ^{[4
]}

Martins C.D.M.G. ^{[1
]}

机构：

[1] Instituto de Ciências Biológicas, Programa de Pós-Graduação em Ciências Fisiológicas, Universidade Federal do Rio Grande, Av. Itália km 8, RS, Rio Grande

[2] Instituto de Diversidad y Ecología Animal (IDEA), CONICET (Consejo Nacional de Investigaciones Científicas Y Técnicas), Córdoba

[3] Facultad de Ciencias Exactas, Físicas y Naturales, Cátedra de Diversidad Biológica IV, Universidad Nacional de Córdoba, Córdoba

[4] Instituto Federal de Educação, Ciência e Tecnologia Sul-rio-grandense, Campus Pelotas. Praça 20 de Setembro, 455, RS, Pelotas

来源：

Chemosphere | 2024年 / 362卷

关键词：

Developmental abnormalities; Herbicide; Jenynsia multidentata; Mortality; Offspring; Viviparous fish;

D O I：

10.1016/j.chemosphere.2024.142541

中图分类号：

学科分类号：

摘要：

Glyphosate is the most widely utilized herbicide worldwide due to its effectiveness in controlling agricultural weeds. However, its persistence in aquatic ecosystems has raised concerns about the well-being of non-target organisms such as fish. This study aimed to evaluate the effects of chronic exposure (21 days) to glyphosate or its formulated product Roundup Transorb R®, at an environmentally relevant concentration permitted by regulations in certain countries (65 μg/L of glyphosate), on the locomotor activity and reproductive success of the fish Jenynsia lineata, as well as on the morphology/development and locomotor activity of its offspring, as intergenerational effects. Neither the pure nor formulated herbicide altered the distance traveled and velocity of adult fish exposed to the herbicide (F0), but they negatively affected reproductive success, decreasing the percentage of positive response to the presence of the female, reducing the number of gravid females, causing abortions, and lowering offspring survival (F1). In the F1 generation, a decrease in weight and length was noted along with developmental abnormalities in both treatment groups (pure or formulated glyphosate), with the formulation causing more harm. Observed developmental abnormalities included muscle atrophy, ascites, pigmentary disorders, vertebral agenesis, spinal deviation, and exophthalmia. Furthermore, parental exposure to pure glyphosate led to an increase in the distance traveled and velocity of F1 (hyperlocomotion), whereas exposure to the formulated product resulted in a decrease in these behaviors (hypolocomotion) of F1. These findings highlight the toxic effects of glyphosate at very low concentrations, although varying between pure and formulated, and demonstrate the intergenerational consequences of herbicide exposure, underscoring the risk to the survival of fish offspring in glyphosate-contaminated environments. © 2024 Elsevier Ltd

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