{"title":"揭示聚乙烯微塑料对不同大小类别套筒草生理反应的影响","authors":"Snigdha Bhaumik, Soumya Subhra Baishnab, Ahmed Shahir, Sayantan Mahapatra, Sumit Mandal","doi":"10.1016/j.marpolbul.2025.118112","DOIUrl":null,"url":null,"abstract":"<div><div>Microplastics (MPs) have wreaked havoc on aquatic ecosystems due to their heightened accumulation potential. Polyethylene (PE) is the most dominant MP polymer contaminating several estuaries globally. This study aims to evaluate the acute exposure of MPs on two size classes of mangrove horn snail, <em>Telescopium telescopium</em>. Small (50–70 mm) and large (90–120 mm) sized organisms were exposed to polyethylene microplastics (PE-MPs) of diameter 34–50 μm, for a period of 21 days. PE-MP toxicity was assessed by monitoring the physiological energetics and oxidative stress biomarker responses at three environmentally relevant concentrations (2, 20, 200 μg L<sup>−1</sup>). Negative Scope for Growth was observed in both size classes at medium and high concentrations. Moreover, PE-MPs significantly induced oxidative damage at 20 and 200 μg L<sup>−1</sup> concentrations. Noticeable DNA damage was observed across all PE-MP concentrations. Small sized gastropods were more vulnerable to MP toxicity than their larger counterparts. Integrated Biomarker Response indicated Superoxide Dismutase as the most responsive biomarker for assessing the toxicological effects of MPs. Present study provides new insights on the potential impacts of PE-MPs on different size classes of <em>T. telescopium</em> from Sundarbans Estuarine System.</div></div>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"217 ","pages":"Article 118112"},"PeriodicalIF":4.9000,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Unveiling the effects of polyethylene microplastic on the physiological responses across different size classes of Telescopium telescopium\",\"authors\":\"Snigdha Bhaumik, Soumya Subhra Baishnab, Ahmed Shahir, Sayantan Mahapatra, Sumit Mandal\",\"doi\":\"10.1016/j.marpolbul.2025.118112\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Microplastics (MPs) have wreaked havoc on aquatic ecosystems due to their heightened accumulation potential. Polyethylene (PE) is the most dominant MP polymer contaminating several estuaries globally. This study aims to evaluate the acute exposure of MPs on two size classes of mangrove horn snail, <em>Telescopium telescopium</em>. Small (50–70 mm) and large (90–120 mm) sized organisms were exposed to polyethylene microplastics (PE-MPs) of diameter 34–50 μm, for a period of 21 days. PE-MP toxicity was assessed by monitoring the physiological energetics and oxidative stress biomarker responses at three environmentally relevant concentrations (2, 20, 200 μg L<sup>−1</sup>). Negative Scope for Growth was observed in both size classes at medium and high concentrations. Moreover, PE-MPs significantly induced oxidative damage at 20 and 200 μg L<sup>−1</sup> concentrations. Noticeable DNA damage was observed across all PE-MP concentrations. Small sized gastropods were more vulnerable to MP toxicity than their larger counterparts. Integrated Biomarker Response indicated Superoxide Dismutase as the most responsive biomarker for assessing the toxicological effects of MPs. Present study provides new insights on the potential impacts of PE-MPs on different size classes of <em>T. telescopium</em> from Sundarbans Estuarine System.</div></div>\",\"PeriodicalId\":18215,\"journal\":{\"name\":\"Marine pollution bulletin\",\"volume\":\"217 \",\"pages\":\"Article 118112\"},\"PeriodicalIF\":4.9000,\"publicationDate\":\"2025-05-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Marine pollution bulletin\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0025326X25005879\",\"RegionNum\":3,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENVIRONMENTAL SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Marine pollution bulletin","FirstCategoryId":"93","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0025326X25005879","RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
Unveiling the effects of polyethylene microplastic on the physiological responses across different size classes of Telescopium telescopium
Microplastics (MPs) have wreaked havoc on aquatic ecosystems due to their heightened accumulation potential. Polyethylene (PE) is the most dominant MP polymer contaminating several estuaries globally. This study aims to evaluate the acute exposure of MPs on two size classes of mangrove horn snail, Telescopium telescopium. Small (50–70 mm) and large (90–120 mm) sized organisms were exposed to polyethylene microplastics (PE-MPs) of diameter 34–50 μm, for a period of 21 days. PE-MP toxicity was assessed by monitoring the physiological energetics and oxidative stress biomarker responses at three environmentally relevant concentrations (2, 20, 200 μg L−1). Negative Scope for Growth was observed in both size classes at medium and high concentrations. Moreover, PE-MPs significantly induced oxidative damage at 20 and 200 μg L−1 concentrations. Noticeable DNA damage was observed across all PE-MP concentrations. Small sized gastropods were more vulnerable to MP toxicity than their larger counterparts. Integrated Biomarker Response indicated Superoxide Dismutase as the most responsive biomarker for assessing the toxicological effects of MPs. Present study provides new insights on the potential impacts of PE-MPs on different size classes of T. telescopium from Sundarbans Estuarine System.
期刊介绍:
Marine Pollution Bulletin is concerned with the rational use of maritime and marine resources in estuaries, the seas and oceans, as well as with documenting marine pollution and introducing new forms of measurement and analysis. A wide range of topics are discussed as news, comment, reviews and research reports, not only on effluent disposal and pollution control, but also on the management, economic aspects and protection of the marine environment in general.