Effects of the exposure of fish to triazine herbicides.
Effects of the exposure of fish to triazine herbicides.
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发表时间：
2014
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通讯作者：
M. Hostovský;J. Blahova;L. Plhalová;V. Kopřiva;Z. Svobodová
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作者：
M. Hostovský;J. Blahova;L. Plhalová;V. Kopřiva;Z. Svobodová
三嗪类除草剂是一类重要的除草剂，50多年来在世界范围内广泛或选择性地用于农业和非农业领域，以防治阔叶杂草和一些杂草。由于它们的大量应用，它们已经成为并仍然是重要的环境污染物，特别是在水生态系统中。鱼是水环境的组成部分，因此是研究三嗪暴露的行为、生物和生化影响的合适模型。我们总结和评价了三嗪类除草剂对鱼类的影响，以提供关于三嗪类除草剂的最新信息。通过考虑一些报告中的各种参数，评估了三嗪除草剂暴露对鱼类生理的总体影响。血液的血液学和生化特征提供了有关生物体内环境以及暴露于三嗪的鱼的一般生理和健康状况的重要信息。根据用生物转化和生物积累指数来评估三嗪类除草剂对鱼类影响的研究，鱼类新陈代谢的变化反映了这些除草剂对环境的污染。鱼体内的抗氧化防御系统对三嗪暴露的反应可能是一种适应性机制，以保护鱼类免受三嗪诱导的氧化应激。急性暴露于三嗪会影响鱼类的生殖或生殖发育；然而，一些三嗪在长期暴露于低浓度期间并不影响鱼类的行为。然而，不能排除对鱼类整体行为反应的影响。
Triazines are an important group of herbicides, which have been used extensively or selectively both in agricultural and non-agricultural areas worldwide for more than fifty years to control broadleaf and some grassy weeds. As a consequence of their massive application, they have become and remain significant environmental pollutants, especially in aquatic ecosystems. Fish are an integral part of the aquatic environment and are, therefore, suitable models for the study of the behavioral, biological, and biochemical effects of triazine exposure. We have summarized and evaluated the effects of triazine herbicides on fish in order to provide an overview of current information on triazines. The overall effects of triazine herbicide exposure on the physiology of fish were evaluated by considering a variety of parameters in a number of reports. Haematological and biochemical profiles of blood provide important information about the internal environment of the organism and the general physiology and health status of triazine exposed fish. According to studies using biotransformation and bioaccumulation indices to estimate the effects of triazines on fish, changes in fish metabolism reflect the pollution of the environment by these herbicides. The responses of antioxidant defence systems in fish to triazine exposure could be an adaptive mechanism to protect the fish from triazine-induced oxidative stress. Acute exposure to triazines affects reproduction or reproductive development in fish; however, some triazines did not affect fish behavior during long-term exposure to low concentrations. Nevertheless, an impact on the overall behavioral response of fish cannot be excluded.