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Journal of Applied Sciences and Environmental Management
World Bank assisted National Agricultural Research Project (NARP) - University of Port Harcourt
ISSN: 1119-8362
Vol. 24, No. 6, 2020, pp. 1085-1092 		Bioline Code: ja20158
Full paper language: English
Document type: Research Article
Document available free of charge

Journal of Applied Sciences and Environmental Management, Vol. 24, No. 6, 2020, pp. 1085-1092

 en Diversity of Bacteria and Fungi Associated with Freshwater Fishes from Mijawal River, Nasarawa, Nigeria
ADAMU, KM; MUHAMMAD, H; AHMAD, SU; AHMAD, MM & YAKUBU, AM

Abstract

Understudying the presence of bacteria and fungi population on freshwater fishes, provides the knowledge and understanding of their diversity and potential roles they may play in the health of the aquatic and terrestrial ecosystems. The present study was conducted to evaluate the diversity of bacteria and fungi species of identified fish samples from River Mijawal, Nasarawa State. The fishes were sampled from the only landing for three months (October to December, 2019) for this study. During the sampling periods, thirteen (13) different fish species were identified; they were swabbed with sterilized swab stick from the skin surface for bacteria and fungi identification. The Dominant fish species were Tilapia zillii check for this species in other resources , Labeo senegalensis check for this species in other resources , Mormyrus rume check for this species in other resources and Mormyrus tapines. The total number of thirteen (13) bacterial and five (5) fungi species were isolated and identified. Eight (8) of the bacteria isolates, were gram negative bacteria ( Pseudomonas check for this species in other resources sp, Aeromonas check for this species in other resources sp, Serratia mercescenes check for this species in other resources , Proteus check for this species in other resources sp, Salmonella check for this species in other resources spp, Escherichia coli check for this species in other resources , Klebsiella check for this species in other resources sp, and Enterobacter check for this species in other resources sp.); whilst the other five (5) were gram positive bacteria ( Bacillus check for this species in other resources sp, Micrococcus check for this species in other resources sp, Staphylococcus check for this species in other resources sp, Enterococcus check for this species in other resources sp and Listeria monocytogenes check for this species in other resources ).The five isolated fungi species were Aspergillus niger check for this species in other resources , Rhizopus check for this species in other resources sp, Penicillium check for this species in other resources sp, Trichoderma viridae check for this species in other resources and Geotrichum candidum check for this species in other resources . The frequency of occurrence of the isolated bacteria indicated that Staphylococcus sp had the highest frequency of occurrence (16.67%) while Serratia mercescens had the least occurrence (2.78%). The highest number of occurrence of the isolated fungi species was observed in Rhizopus sp while the least was recorded in Geotricum candidum. It was observed that Tilapia zillii and Mormyrus rume had the most frequent bacteria and fungi isolates. It can therefore be deduced from the results that fish samples identified from River Mijawal has high bacteria and fungi diversity that may be pathogenic to man. The occurrence of these microbes may be attributed of human and animal faeces in the River

Keywords
Freshwater fishes; Microbes; River Mijawal; Nasarawa

 
© Copyright 2020 - Arthi et al.

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