廊琅湿地(泰国清莱)淡水鱼类摄入微塑料的首个证据

IF 0.7 4区 综合性期刊 Q3 MULTIDISCIPLINARY SCIENCES
Chantima Kittichai, SUK-UENG Krittawit, Paridchaya Intep PARIDCHAYA INTEP, Vittayapadung Saritporn
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引用次数: 0

摘要

据报道,一些海洋物种摄入了微塑料(MP),但有关淡水物种摄入微塑料的知识却很有限,只有少数研究涉及淡水鱼类,尤其是泰国淡水生态系统中的淡水鱼类摄入微塑料的情况。本研究旨在首次评估泰国清莱侬琅湿地淡水鱼胃肠道(GIT)中 MPs 的含量。本次研究共采集了 100 个鱼类标本,代表了 8 个科 15 个鱼种。鱼类总长度和总重量的基本测量值用于计算富尔顿状态指数(F)。随后取出胃肠,通过目测和消化液提取 MPs。还记录了颜色和 MP 类型(纤维、杆状和碎片)等定性属性。结果显示,MP 的流行率相对较低,为 21.0%,从代表 7 个物种的标本的胃肠道中取出了 25 个 MP 颗粒。每条鱼摄入的 MP 粒子数量在 1 到 4 个之间,平均为 1.19±0.68。MP颗粒分为纤维(92.0%)、杆状(4.0%)和碎片(4.0%),其中蓝色纤维最多。MP颗粒的数量与鱼的体长、体重和F值之间没有明显的相关性。这些研究结果首次证明了泰国湿地鱼类体内的 MP 污染情况,为今后对全国各地许多水生系统的生物群进行研究和风险评估提供了基线。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
First Evidence of Microplastics Ingestion by Freshwater Fishes from Nong Luang Wetland (Chiang Rai, Thailand)
Microplastic (MP) ingestion has been reported in several marine species but knowledge regarding MPs in freshwater species is limited, with only a few studies on the occurrence of MPs in freshwater fish, particularly in Thai freshwater ecosystems. The aim of this study was to assess the occurrence of MPs for the first time in the gastrointestinal tracts (GITs) of freshwater fishes from the Nong Luang Wetland, Chiang Rai, Thailand. A total of 100 fish specimens representing 15 species from 8 families were examined. Basic fish measurements as total length and total weight were used to calculate Fulton’s condition index (F). The GITs were subsequently removed and MPs were extracted by visual inspection and digestion solution. Qualitative attributes such as color and MP types (fibers, rod-shaped and fragments) were also recorded. Results showed relatively low MP prevalence at 21.0%, with 25 MP particles removed from the GITs of specimens representing 7 species. The number of ingested MP particles ranged between 1 and 4 per fish, with an average of 1.19±0.68. MP particles were categorized as fibers (92.0%), rod-shaped (4.0%) and fragments (4.0%) with blue fibers the most prevalent. No significant correlations were observed between the number of MP particles and the body length, weight, and F value of fish. These findings provide the first evidence of MP contamination in fishes from a Thai wetland as a baseline for future studies and risk assessments on the biota of many aquatic systems spread across the country.
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来源期刊
Sains Malaysiana
Sains Malaysiana MULTIDISCIPLINARY SCIENCES-
CiteScore
1.60
自引率
12.50%
发文量
196
审稿时长
3-6 weeks
期刊介绍: Sains Malaysiana is a refereed journal committed to the advancement of scholarly knowledge and research findings of the several branches of science and technology. It contains articles on Earth Sciences, Health Sciences, Life Sciences, Mathematical Sciences and Physical Sciences. The journal publishes articles, reviews, and research notes whose content and approach are of interest to a wide range of scholars. Sains Malaysiana is published by the UKM Press an its autonomous Editorial Board are drawn from the Faculty of Science and Technology, Universiti Kebangsaan Malaysia. In addition, distinguished scholars from local and foreign universities are appointed to serve as advisory board members and referees.
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