Investigating the toxicity of polylactic acid microplastics on the health and physiology of freshwater fish, Cirrhinus mrigala.

IF 2.4 4区 环境科学与生态学 Q2 ECOLOGY
Ecotoxicology Pub Date : 2024-12-01 Epub Date: 2024-10-02 DOI:10.1007/s10646-024-02813-4
Eram Rashid, Syed Makhdoom Hussain, Shafaqat Ali, Pallab K Sarker, Mohammad Abul Farah
{"title":"Investigating the toxicity of polylactic acid microplastics on the health and physiology of freshwater fish, Cirrhinus mrigala.","authors":"Eram Rashid, Syed Makhdoom Hussain, Shafaqat Ali, Pallab K Sarker, Mohammad Abul Farah","doi":"10.1007/s10646-024-02813-4","DOIUrl":null,"url":null,"abstract":"<p><p>The widespread presence of microplastics (MPs) in aquatic ecosystems has raised growing concerns among ecotoxicologists regarding their potential toxicity. This study explored the impacts of polylactic acid (PLA) MPs on the physiology and health of freshwater fish, Cirrhinus mrigala, by dietary exposure for 90 days. The experiment consisted of six groups: five treatment groups (0.5%, 1%, 1.5%, 2%, and 2.5% PLA-MP) and a control group (0% PLA-MP). Each group was comprised of fifteen fish, and the experiment was replicated three times. The exposure severity of PLA-MPs varied from low to high, with treatment levels ranging from 0.5% to 2.5% PLA-MPs, relative to the control group. This exposure significantly affected their growth performance. Additionally, the apparent digestibility of the SFM-based diet decreased with increasing PLA-MPs concentration. Exposure to PLA-MPs induced considerable changes in body composition, characterized by increased moisture and crude fat content and decreased ash content and crude protein. The blood profile, including MCHC, RBCs, Hb, PLT and PCV exhibited significant declines in the high treatment group (2.5% PLA-MPs), while MCH, WBCs and MCV showed notable increases. Furthermore, histopathological examination of the intestine revealed an increase in abnormalities in the intestine at 2.5% PLA-MPs level. The high treatment group (2.5% PLA-MPs) showed the lowest mineral content in the fish muscles. In summary, dietary exposure to PLA-MPs led to alterations in overall body performance across the treatment groups, ranging from low to high severity levels.</p>","PeriodicalId":11497,"journal":{"name":"Ecotoxicology","volume":null,"pages":null},"PeriodicalIF":2.4000,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ecotoxicology","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1007/s10646-024-02813-4","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2024/10/2 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"ECOLOGY","Score":null,"Total":0}
引用次数: 0

Abstract

The widespread presence of microplastics (MPs) in aquatic ecosystems has raised growing concerns among ecotoxicologists regarding their potential toxicity. This study explored the impacts of polylactic acid (PLA) MPs on the physiology and health of freshwater fish, Cirrhinus mrigala, by dietary exposure for 90 days. The experiment consisted of six groups: five treatment groups (0.5%, 1%, 1.5%, 2%, and 2.5% PLA-MP) and a control group (0% PLA-MP). Each group was comprised of fifteen fish, and the experiment was replicated three times. The exposure severity of PLA-MPs varied from low to high, with treatment levels ranging from 0.5% to 2.5% PLA-MPs, relative to the control group. This exposure significantly affected their growth performance. Additionally, the apparent digestibility of the SFM-based diet decreased with increasing PLA-MPs concentration. Exposure to PLA-MPs induced considerable changes in body composition, characterized by increased moisture and crude fat content and decreased ash content and crude protein. The blood profile, including MCHC, RBCs, Hb, PLT and PCV exhibited significant declines in the high treatment group (2.5% PLA-MPs), while MCH, WBCs and MCV showed notable increases. Furthermore, histopathological examination of the intestine revealed an increase in abnormalities in the intestine at 2.5% PLA-MPs level. The high treatment group (2.5% PLA-MPs) showed the lowest mineral content in the fish muscles. In summary, dietary exposure to PLA-MPs led to alterations in overall body performance across the treatment groups, ranging from low to high severity levels.

研究聚乳酸微塑料对淡水鱼(Cirrhinus mrigala)健康和生理的毒性。
微塑料(MPs)在水生生态系统中的广泛存在引起了生态毒理学家对其潜在毒性的日益关注。本研究通过对淡水鱼(Cirrhinus mrigala)进行为期 90 天的饮食接触,探讨了聚乳酸(PLA)MPs 对淡水鱼生理和健康的影响。实验共分六组:五个处理组(0.5%、1%、1.5%、2% 和 2.5%聚乳酸-MP)和一个对照组(0% 聚乳酸-MP)。每组 15 尾鱼,实验重复三次。相对于对照组,暴露于 PLA-MPs 的严重程度从低到高不等,处理水平从 0.5% 到 2.5%不等。这种暴露严重影响了它们的生长表现。此外,以 SFM 为基础的日粮的表观消化率随着 PLA-MPs 浓度的增加而降低。暴露于 PLA-MPs 会导致身体成分发生很大变化,其特点是水分和粗脂肪含量增加,灰分和粗蛋白含量减少。在高浓度处理组(2.5% PLA-MPs)中,包括 MCHC、RBC、Hb、PLT 和 PCV 在内的血液指标明显下降,而 MCH、WBC 和 MCV 则明显上升。此外,肠道组织病理学检查显示,在 2.5% PLA-MPs 水平下,肠道异常情况有所增加。高处理组(2.5% PLA-MPs)的鱼肌肉中矿物质含量最低。总之,从膳食中摄入 PLA-MPs 会导致各处理组的总体身体表现发生变化,严重程度从低到高不等。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Ecotoxicology
Ecotoxicology 环境科学-毒理学
CiteScore
5.30
自引率
3.70%
发文量
107
审稿时长
4.7 months
期刊介绍: Ecotoxicology is an international journal devoted to the publication of fundamental research on the effects of toxic chemicals on populations, communities and terrestrial, freshwater and marine ecosystems. It aims to elucidate mechanisms and processes whereby chemicals exert their effects on ecosystems and the impact caused at the population or community level. The journal is not biased with respect to taxon or biome, and papers that indicate possible new approaches to regulation and control of toxic chemicals and those aiding in formulating ways of conserving threatened species are particularly welcome. Studies on individuals should demonstrate linkage to population effects in clear and quantitative ways. Laboratory studies must show a clear linkage to specific field situations. The journal includes not only original research papers but technical notes and review articles, both invited and submitted. A strong, broadly based editorial board ensures as wide an international coverage as possible.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信