Morphological anomalies of tadpoles from a contaminated stream in the state of Tlaxcala, Mexico

IF 1.1 4区 生物学 Q3 ZOOLOGY Herpetological Journal Pub Date : 2023-10-01 DOI:10.33256/33.4.111114
Maribel Méndez-Tepepa, Kevin I. Medina-Bello, Edelmira García-Nieto, Libertad Juárez-Santa Cruz
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Abstract

The contamination of aquatic systems by anthropogenic activities may impact amphibian populations by causing malformation and death in tadpoles. However, there often needs to be more information regarding environmental pollutants' effects on amphibians, such as contaminated systems from the state of Tlaxcala in Mexico. This study reports on morphological abnormalities observed in Lithobates spectabilis tadpoles found in a stream of three sites monitored in Tlaxcala. The tadpoles presented swollen heads, edema, intestinal hemorrhage, anomalies in the mouth, a deviated tail, and underdeveloped tail fins. We hypothesise that these abnormalities have been caused by exposure to contamination from nearby communities, including garbage and sewage pumped directly into the stream. This research provides the first report on the potential adverse effects of contaminant exposure on tadpole development and morphology in this region. Identifying malformations in tadpoles could help detect contaminants in aquatic systems for further analysis. Keywords: Lithobates spectabilis, pollutants, anthropogenic, edema, abnormalities
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墨西哥特拉斯卡拉州一条受污染溪流中蝌蚪的形态异常
人为活动对水生系统的污染可能会导致蝌蚪畸形和死亡,从而影响两栖动物种群。然而,通常需要更多关于环境污染物对两栖动物的影响的信息,例如来自墨西哥特拉斯卡拉州的污染系统。本研究报告了在特拉斯卡拉监测的三个地点的溪流中发现的Lithobates spectabilis蝌蚪的形态异常。蝌蚪头肿、水肿、肠出血、口畸形、尾偏、尾鳍发育不全。我们假设这些异常是由于暴露于附近社区的污染造成的,包括直接排入河流的垃圾和污水。本研究首次报道了污染物暴露对该地区蝌蚪发育和形态的潜在不利影响。识别蝌蚪的畸形可以帮助检测水生系统中的污染物,以便进一步分析。关键词:石贝,污染物,人为,水肿,异常
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来源期刊
Herpetological Journal
Herpetological Journal 生物-动物学
CiteScore
2.40
自引率
10.00%
发文量
25
审稿时长
>12 weeks
期刊介绍: The Herpetological Journal is the Society''s prestigious quarterly scientific journal.
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