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标题：Blood Biomarkers in Nile tilapia Oreochromis niloticus niloticus and African Catfish Clarias gariepinus to Evaluate Water Quality of the River Nile
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作者：Alaa G.M. Osman ; Khaled Y. AbouelFadl ; Abd El Baset M. Abd El Reheem 等
期刊名称：Journal of FisheriesSciences.com / Su ÜrünleriBilimeri.com
印刷版ISSN：1307-234X
出版年度：2018
卷号：12
期号：1
页码：1-15
DOI：10.21767/1307-234X.1000141
出版社：Istanbul University
摘要：In this work, we explore new sights of biomarker research and establish the use of blood parameters and erythronprofile in wild fish. Water quality assessment along the Nile course concluded higher mean values of the detectedphysicochemical parameters in water collected from downstream sites. The mean values of nearly all the detectedhaematological parameters were significantly lower in the blood of Nile tilapia and African catfish collectedfrom downstream (contaminated) compared to upstream sites. Lower cellular and nuclear areas and cellular andnuclear shape factor were recorded in the erythrocytes of fish collected from downstream compared to thosecaught from upstream sites. This was confirmed by higher immature ratios of red cells in the blood of fish sampledfrom downstream sites. Karyorrhectic and enucleated erythrocytes were recorded to be higher in the blood of fishcollected from downstream sites. The levels of all the selected biochemical variables in the blood of both fishspecies were recorded to be significantly higher in downstream sites. The detected blood variables and erythrocytemalformations were proven to be suitable for bio-monitoring of aquatic pollution. The results revealed speciesspecificdifferences in sensitivities, suggesting that Nile tilapia may serve as a more sensitive test species comparedto African catfish.
关键词：Blood biomarkers; Water pollution; Erythron profile; River Nile; African catfish; Nile tilapia