Abstract:
Microplastics pose risks to marine organisms through ingestion, entanglement, and as carriers of toxic additives and environmental pollutants. Plastic pre-production pellet leachates have been shown to affect the development of sea urchins and, to some extent, mussels. The extent of those developmental effects on other animal phyla remains unknown. Here, we test the toxicity of environmental mixed nurdle samples and new PVC pellets for the embryonic development or asexual reproduction by regeneration of animals from all the major animal superphyla (Lophotrochozoa, Ecdysozoa, Deuterostomia and Cnidaria). Our results show diverse, concentration-dependent impacts in all the species sampled for new pellets, and for molluscs and deuterostomes for environmental samples. Embryo axial formation, cell specification and, specially, morphogenesis seem to be the main processes affected by plastic leachate exposure. Our study serves as a proof of principle for the potentially catastrophic effects that increasing plastic concentrations in the oceans and other ecosystems can have across animal populations from all major animal superphyla.
摘要:
微塑料通过摄入对海洋生物构成风险,纠缠,作为有毒添加剂和环境污染物的载体。塑料预生产颗粒渗滤液已被证明会影响海胆的发育,在某种程度上,贻贝.这些发育对其他动物门的影响程度仍然未知。这里,我们测试了环境混合nurdle样品和新的PVC颗粒对胚胎发育或无性繁殖的毒性,方法是通过从所有主要动物上的动物再生(Lophotrochozoa,蜕皮动物,Deuterostomia和Cnidaria)。我们的结果显示不同,对新颗粒采样的所有物种的浓度依赖性影响,以及软体动物和环境样品的氘造口术。胚胎轴向形成,电池规格和,特别是,形态发生似乎是受塑料渗滤液暴露影响的主要过程。我们的研究为海洋和其他生态系统中塑料浓度增加可能对所有主要动物的动物种群产生的潜在灾难性影响提供了原理证明。