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首页> 外文期刊>Ecotoxicology and Environmental Safety >Morphological abnormalities in natural populations of the common South American toad Rhinella arenarum inhabiting fluoride-rich environments
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Morphological abnormalities in natural populations of the common South American toad Rhinella arenarum inhabiting fluoride-rich environments

机译：富含氟化物环境的普通南美蟾蜍犀牛菌的自然群体的形态异常

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摘要

Morphological abnormalities in amphibians may be attributed to contaminants, ultraviolet radiation and trematode parasites, or a synergistic effect between them. In the present study, morphological abnormalities in Rhinella arenarum adults from natural and artificial fluoride-rich environments were identified and evaluated. Three sites were sampled in central Argentina: Los Vallecitos stream (LF-LV), Los Cerros Negros stream (MF-CN), and Decantation ponds (HF-DP), with low (0.33 mg/L), middle (2.03 mg/L) and high (14.0 mg/L) fluoride levels respectively; the latter site is associated with a fluoride mine. Abnormal individuals were photographed and then standard radiographs were taken. Abnormality frequencies and relative percentage of abnormal individuals were calculated for each site. In addition, skeletochronology was used to estimate toad's age. Five abnormality types were identified: syndactyly, ectrodactyly, polydactyly, microphthalmia and ectromelia. Percentages of abnormal individuals per site were: LF-LV = 4%, MF-CN = 21.2% and HF-DP = 6.4%. The MF-CN and HF-DP populations had morphological abnormality frequencies that exceeded the reference value (5%) reported in the literature. The average age did not differ between sites. The results of this study indicate that there is an association between frequency of morphological abnormalities and high fluoride levels.
机译：两栖动物的形态异常可能归因于污染物，紫外线辐射和震颤寄生虫，或它们之间的协同效应。在本研究中，确定并评估了来自天然和人造氟化物的环境的犀牛群成年人的形态异常。在阿根廷中部进行了三个站点：LOS Vallecitos流（LF-LV），LOS甲酸酯黑罗斯溪流（MF-CN）和倾析池（HF-DP），中间（0.33mg / L），中间（2.03mg / l）和高（14.0mg / L）氟化物水平;后一种部位与氟化物矿物有关。拍摄异常个体，然后进行标准射线照片。每个站点计算异常频率和异常个体的相对百分比。此外，骨骼影学用于估计蟾蜍的年龄。鉴定了五种异常类型：综合征，重子，重盐性，微蛋白，微蛋白和蚀刻力。每立场异常的百分比为：LF-LV = 4％，MF-CN = 21.2％和HF-DP = 6.4％。 MF-CN和HF-DP群体具有超过文献中报告的参考值（5％）的形态异常频率。地点之间的平均年龄没有区别。该研究的结果表明，形态异常频率和高氟化物水平之间存在关联。

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  • 来源
    《Ecotoxicology and Environmental Safety》 |2019年第8期|32-38|共7页
  • 作者

    Pollo Favio; Bionda Clarisa; Otero Manuel; Grenat Pablo; Babini Selene; Flores Patricia; Grisolia Marta; Salas Nancy; Martino Adolfo;

  • 作者单位

    Univ Nacl Rio Cuarto Dept Ciencias Nat Fac Ciencias Exactas Fis Quim & Nat Ecol Ruta Nacl 36 Km 601 X5804BYA Rio Cuarto Argentina|Consejo Nacl Invest Cient & Tecn Buenos Aires DF Argentina;

    Univ Nacl Rio Cuarto Dept Ciencias Nat Fac Ciencias Exactas Fis Quim & Nat Ecol Ruta Nacl 36 Km 601 X5804BYA Rio Cuarto Argentina|Consejo Nacl Invest Cient & Tecn Buenos Aires DF Argentina;

    Univ Nacl Rio Cuarto Dept Ciencias Nat Fac Ciencias Exactas Fis Quim & Nat Ecol Ruta Nacl 36 Km 601 X5804BYA Rio Cuarto Argentina|Consejo Nacl Invest Cient & Tecn Buenos Aires DF Argentina;

    Univ Nacl Rio Cuarto Dept Ciencias Nat Fac Ciencias Exactas Fis Quim & Nat Ecol Ruta Nacl 36 Km 601 X5804BYA Rio Cuarto Argentina|Consejo Nacl Invest Cient & Tecn Buenos Aires DF Argentina;

    Univ Nacl Rio Cuarto Dept Ciencias Nat Fac Ciencias Exactas Fis Quim & Nat Ecol Ruta Nacl 36 Km 601 X5804BYA Rio Cuarto Argentina|Consejo Nacl Invest Cient & Tecn Buenos Aires DF Argentina;

    UNRC Radiol Vet Fac Agron & Vet Ruta 36 Km 601 Cordoba Argentina;

    UNRC Radiol Vet Fac Agron & Vet Ruta 36 Km 601 Cordoba Argentina;

    Univ Nacl Rio Cuarto Dept Ciencias Nat Fac Ciencias Exactas Fis Quim & Nat Ecol Ruta Nacl 36 Km 601 X5804BYA Rio Cuarto Argentina;

    Univ Nacl Rio Cuarto Dept Ciencias Nat Fac Ciencias Exactas Fis Quim & Nat Ecol Ruta Nacl 36 Km 601 X5804BYA Rio Cuarto Argentina;

  • 收录信息 美国《科学引文索引》(SCI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Amphibians; Fluoride; Teratogen; Sentinel organisms; In situ study;

    机译：两栖动物;氟化物;致畸子;Sentinel生物;原位研究;

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