Bioaccumulation of priority trace metals in edible muscles of West African lungfish (Protopterus annectens Owen, 1839) from Nyabarongo River, Rwanda

Q2 Environmental Science
Timothy Omara
{"title":"Bioaccumulation of priority trace metals in edible muscles of West African lungfish (Protopterus annectens Owen, 1839) from Nyabarongo River, Rwanda","authors":"Timothy Omara","doi":"10.1080/23311843.2020.1779557","DOIUrl":null,"url":null,"abstract":"Abstract Heavy metal pollution and accumulation in aquatic ecosystems present serious threats to sustainability. In the current study, the heavy metal content of water and edible muscles of a piscivorous fish (Protopterus annectens) as well as bioaccumulation of the heavy metals in fish tissues were evaluated. Samples of water (n = 6) and fish (n = 6) were taken from Kirinda bridge and Ruliba station on Nyabarongo river and analyzed by UV spectroscopy and atomic absorption spectrometry, respectively. The heavy metal concentrations in water were: iron (0.63 ± 0.02 and 1.61 ± 0.03 mg/kg), manganese (0.53 ± 0.002 mg/kg at Ruliba station), chromium (0.06 ± 0.002 mg/kg at Kirinda bridge), cadmium (0.106 ± 0.002 mg/kg at Ruliba station) and lead (0.75 ± 0.02 and 0.051 ± 0.01 mg/kg). Edible muscles of Protopterus annectens contained 336.0 ± 0.70, 302.6 ± 1.22, 6.4 ± 0.26, 44.7 ± 0.20, 138.2 ± 0.17 and 302.4 ± 1.50 mg/kg of iron, manganese, copper, zinc, chromium and lead at Kirinda bridge and 272.8 ± 0.36, 292.2 ± 0.25, 8.8 ± 0.36, 135.2 ± 0.15, 148.0 ± 0.21 and 432. 0 ± 0.50 mg/kg of iron, manganese, copper, zinc, chromium and lead, respectively, at Ruliba station. Most of the heavy metal contents were above the recommended levels. Bioaccumulation factors recorded in Protopterus annectens ranged from 403.2 to 15,130 L/kg, implying that consumption of this fish could pose deleterious health risks. The study suggested that P. annectens could be used as a sentinel organism for biomonitoring of aquatic ecosystems.","PeriodicalId":45615,"journal":{"name":"Cogent Environmental Science","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/23311843.2020.1779557","citationCount":"17","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Cogent Environmental Science","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1080/23311843.2020.1779557","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"Environmental Science","Score":null,"Total":0}
引用次数: 17

Abstract

Abstract Heavy metal pollution and accumulation in aquatic ecosystems present serious threats to sustainability. In the current study, the heavy metal content of water and edible muscles of a piscivorous fish (Protopterus annectens) as well as bioaccumulation of the heavy metals in fish tissues were evaluated. Samples of water (n = 6) and fish (n = 6) were taken from Kirinda bridge and Ruliba station on Nyabarongo river and analyzed by UV spectroscopy and atomic absorption spectrometry, respectively. The heavy metal concentrations in water were: iron (0.63 ± 0.02 and 1.61 ± 0.03 mg/kg), manganese (0.53 ± 0.002 mg/kg at Ruliba station), chromium (0.06 ± 0.002 mg/kg at Kirinda bridge), cadmium (0.106 ± 0.002 mg/kg at Ruliba station) and lead (0.75 ± 0.02 and 0.051 ± 0.01 mg/kg). Edible muscles of Protopterus annectens contained 336.0 ± 0.70, 302.6 ± 1.22, 6.4 ± 0.26, 44.7 ± 0.20, 138.2 ± 0.17 and 302.4 ± 1.50 mg/kg of iron, manganese, copper, zinc, chromium and lead at Kirinda bridge and 272.8 ± 0.36, 292.2 ± 0.25, 8.8 ± 0.36, 135.2 ± 0.15, 148.0 ± 0.21 and 432. 0 ± 0.50 mg/kg of iron, manganese, copper, zinc, chromium and lead, respectively, at Ruliba station. Most of the heavy metal contents were above the recommended levels. Bioaccumulation factors recorded in Protopterus annectens ranged from 403.2 to 15,130 L/kg, implying that consumption of this fish could pose deleterious health risks. The study suggested that P. annectens could be used as a sentinel organism for biomonitoring of aquatic ecosystems.
卢旺达Nyabarongo河西非肺鱼(环节原翼虫Owen,1839)可食用肌肉中优先微量金属的生物累积
重金属污染与积累对水生生态系统的可持续性构成严重威胁。本研究对一种食鱼(Protopterus annectens)的水和可食用肌肉中的重金属含量以及重金属在鱼类组织中的生物积累进行了研究。在Nyabarongo河的Kirinda桥和Ruliba站分别采集了水(n = 6)和鱼(n = 6)样品,用紫外光谱法和原子吸收光谱法对其进行了分析。水中重金属浓度分别为:铁(0.63±0.02和1.61±0.03 mg/kg)、锰(0.53±0.002 mg/kg)、铬(0.06±0.002 mg/kg)、镉(0.106±0.002 mg/kg)和铅(0.75±0.02和0.051±0.01 mg/kg)。颈原terus annecterus可食性肌肉在Kirinda bridge的铁、锰、铜、锌、铬、铅含量分别为336.0±0.70、302.6±1.22、6.4±0.26、44.7±0.20、138.2±0.17、302.4±1.50 mg/kg和272.8±0.36、292.2±0.25、8.8±0.36、135.2±0.15、148.0±0.21、432。如里坝站铁、锰、铜、锌、铬、铅含量分别为0±0.50 mg/kg。大部分地区的重金属含量均高于建议水平。在环状原terus annectens中记录的生物积累因子范围为403.2至15,130 L/kg,这意味着食用这种鱼可能会造成有害的健康风险。研究结果表明,该虫可作为水生生态系统生物监测的哨兵生物。
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
Cogent Environmental Science
Cogent Environmental Science ENVIRONMENTAL SCIENCES-
自引率
0.00%
发文量
0
审稿时长
13 weeks
×
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