Evaluation of the Toxicity of Microplastics in the Supralittoral of the Barents Sea Using Test Objects of Different Trophic Levels

IF 0.8 4区生物学 Q4 MARINE & FRESHWATER BIOLOGY

Inland Water Biology Pub Date : 2024-05-24 DOI:10.1134/s1995082924020093

A. M. Lazareva, A. N. Rak, D. M. Gershkovich, O. V. Ilyina, V. I. Ipatova

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Abstract

The influence of different types of microplastics (MPs) and ash after burning a mixture of macroplastics selected in the supralittoral of the Barents Sea on the development of traditional test objects of the culture of the green microalgae Scenedesmus quadricauda and a culture of cladocerans Daphnia magna in chronic experiments has been studied. In terms of the inhibition of algal growth at a concentration of 3 mg/L of MPs, the PU sample shows the highest toxicity, followed by HDPE (white), HDPE (red), and contact EPS in descending order of toxicity. PP was nontoxic. Ash in the concentration range of 0.01–1000 mg/L does not significantly inhibit the growth of Scenedesmus quadricauda. For Daphnia magna, a more expressed decrease in the mean linear size is noted with the addition of intact EPS, and the stimulation of fertility is significantly higher in the presence of contact EPS. When comparing the effect of intact and contact PU on D. magna, the death of all individuals under the influence of intact PU is found; when adding PU, survival remained at the control level. MP particles and ash affect the trophic activity of daphnia when fed with chlorella, but this effect does not lead to changes in fertility and growth during long-term observation.

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利用不同营养级的测试对象评估巴伦支海上沿岸微塑料的毒性

摘要在慢性实验中，研究了不同类型的微塑料（MPs）和巴伦支海上沿岸选取的大型塑料混合物燃烧后的灰烬对绿色微藻类 Scenedesmus quadricauda 培养物和大型蚤培养物这两种传统测试对象生长发育的影响。在 3 毫克/升 MPs 浓度下对藻类生长的抑制作用方面，聚氨酯样品的毒性最高，其次是高密度聚乙烯（白色）、高密度聚乙烯（红色）和接触式发泡聚苯乙烯（EPS）。聚丙烯无毒。灰分的浓度范围为 0.01-1000 毫克/升，对 Scenedesmus quadricauda 的生长没有明显的抑制作用。对于大型水蚤而言，添加完整的发泡聚苯乙烯后，其平均线形尺寸会有更明显的下降，而接触式发泡聚苯乙烯对繁殖力的刺激则明显更高。在比较完整聚氨酯和接触聚氨酯对大型蚤的影响时发现，在完整聚氨酯的影响下，所有个体都会死亡；而在添加聚氨酯时，存活率仍保持在对照组水平。用小球藻喂养水蚤时，MP 颗粒和灰分会影响水蚤的营养活动，但在长期观察中，这种影响不会导致水蚤的繁殖力和生长发生变化。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Inland Water Biology 生物-海洋与淡水生物学

CiteScore

1.30

自引率

55.60%

发文量

审稿时长

6-12 weeks

期刊介绍： Inland Water Biology publishes thematic reviews and original papers devoted to flora and fauna in waterbodies, biodiversity of hydrobionts, biology, morphology, systematics, ecology, ethology, ecological physiology and biochemistry of aquatic organisms, patterns of biological cycle, structure and functioning of aquatic ecosystems, anthropogenic and uncontrolled natural impacts on aquatic organisms and ecosystems, invasion of nonindigenous species into ecosystems and their ecology, methods of hydrobiological and ichthyological studies.