微塑料摄入会改变模型鱼孔雀鱼中某些性选择特征的表达（Poecilia reticulata Peters 1859）,Marine and Freshwater Behaviour and Physiology

摘要

一项研究调查了微塑料 (5 mm) 对孔雀鱼 ( Poecilia reticulata ) 某些表型性状的影响）。以商业饲料喂养的幼年雄性孔雀鱼在水族箱中在三种不同的实验处理下饲养 70 天：1）对照（无塑料）；2）微塑料；3) 宏观塑料。研究结果表明，与大塑料和无塑料处理的男性相比，接受微塑料处理的男性死亡率显着更高，标准长度更短，身体面积更小，精子束和乙状结肠显示数量有限，性兴趣也更少。分析显示，处理之间的尾巴长度、性腺推力或不同的颜色模式没有显着变化。总之，这些发现表明微塑料污染如何影响鱼类的生存、生长和繁殖特征；这必须认真考虑，

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ABSTRACT

A study was conducted to investigate the effects of microplastics (5 mm) on some phenotypic traits of guppy (Poecilia reticulata). Juvenile male guppies, fed with a commercial diet, were reared for 70 days in aquariums under three different experimental treatments: 1) control (no plastic); 2) microplastic; and 3) macroplastic. The findings revealed that microplastic-treated males had significantly higher mortality, shorter standard length, smaller body area, a limited number of sperm bundles and sigmoid displays, and less sexual interest than macroplastic and no-plastic treated males. The analyses showed no significant variation in tail length, gonopodial thrusts, or different color patterns among the treatments. Taken together, these findings show how microplastic pollution can influence the survival, growth, and reproductive traits of a fish species; this must be considered seriously, as other aquatic animals could be saved by reducing the amount of plastic waste in different aquatic environments.