Diversity of euglenoids in a drinking water source in Burkina Faso (West Africa): implications for sustainability and water quality

IF 1.1 4区环境科学与生态学 Q3 MARINE & FRESHWATER BIOLOGY

African Journal of Aquatic Science Pub Date : 2023-03-08 DOI:10.2989/16085914.2023.2170315

M. Ouattara, F. Zongo, Bilassé Zongo

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引用次数: 0

Abstract

Euglenophyta are a group of algae that occur in water polluted by organic matter, which makes them a good indicator for organic pollution. This study aimed to determine the diversity of Euglenophyta, the environmental conditions favourable to their development and their implication in the sustainability and quality of the water in Loumbila reservoir. Algal and chemical water samples were collected monthly between January 2015 and June 2015. Phytoplankton species were identified under a light microscope using a Fuchs-Rosenthal chamber for algal cell counting. In total, 34 species of Euglenophyta were identified, four of which are new to the algal flora of Burkina Faso. The abundance and number of species of the genera Euglena and Phacus were significantly (p < 0.05) higher in the dry season. Euglena deses, Euglena texta, Euglena caudata, Phacus lefevrei, Phacus ranula and Phacus orbicularis were identified as indicator species of high nutrient concentration. The abundance of these genera was positively correlated with pH, dissolved oxygen, water transparency, conductivity, nitrates and orthophosphates. This study on the diversity of Euglenophyta enabled us to identify indicator species of reservoir pollution and the environmental factors favourable to their development. This can be used to guide the future water quality monitoring and management of the reservoir.

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布基纳法索（西非）饮用水源中眼虫的多样性：对可持续性和水质的影响

眼藻是一组出现在被有机物污染的水中的藻类，这使它们成为有机污染的良好指标。本研究旨在确定眼藻的多样性、有利于其发展的环境条件及其对Loumbila水库水质和可持续性的影响。2015年1月至2015年6月，每月采集藻类和化学水样本。浮游植物物种是在光学显微镜下使用Fuchs Rosenthal小室进行藻类细胞计数鉴定的。共鉴定出34种眼藻，其中4种是布基纳法索藻类区系中的新物种。在旱季，眼虫属和Phacus属的物种丰度和数量显著较高（p<0.05）。眼虫、文本眼虫、尾状眼虫、lefevrei眼虫、ranula眼虫和轮匝眼虫被鉴定为高营养浓度的指示种。这些属的丰度与pH、溶解氧、水透明度、电导率、硝酸盐和正磷酸盐呈正相关。这项对裸藻多样性的研究使我们能够确定水库污染的指示物种以及有利于其发展的环境因素。这可用于指导未来水库的水质监测和管理。

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来源期刊

African Journal of Aquatic Science MARINE & FRESHWATER BIOLOGY-

CiteScore

3.90

自引率

7.10%

发文量

审稿时长

>12 weeks

期刊介绍： The African Journal of Aquatic Science is an international journal devoted to the study of the aquatic sciences, covering all African inland and estuarine waters. The Journal publishes peer-reviewed original scientific papers and short articles in all the aquatic science fields including limnology, hydrobiology, ecology, conservation, biomonitoring, management, water quality, ecotoxicology, biological interactions, physical properties and human impacts on African aquatic systems.