The Aspergilli as Pathogens of Cultured Fishes

Olufemi, Benjamin E.

doi:10.1007/978-1-4684-8736-7_5

Cited by 7 publications

(5 citation statements)

References 16 publications

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“…was mostly isolated from fish the samples. The isolation of these fungi in the present study might be of public health significance because of the possible acute deleterious effects they can cause which could also lead to mass mortality of fish and morbidity in humans who consume them (Olufemi, 1985). Improper pond management, excessive amounts of decomposing organic matter, sick or injured fish and other stressful conditions are all possible sources of fungi in the study sites (Iqbal and Saleemi, 2013).…”

Section: Discussionmentioning

confidence: 87%

Fungi associated with african mudfish (<i>Clarias gariepinus</i>, Burchell 1822) in selected fish farms and dams in Zaria and its environs, Kaduna State, Nigeria

Atawodi¹,

Yola²,

Kawo³

et al. 2018

Bayero J. Pure App. Sci.

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An investigation was conducted to determine the presence of fungi in C. gariepinus harvested from selected farms and dams in Zaria and its environs. A total of 360 randomly sampled Clarias gariepinus (African mudfish) and 144 fish holding water samples were collected from three dams (wild captured) and three fish farms (cultured). They were screened for fungi using Sabouraud Dextrose Agar as isolation medium. Identification of the fungi was done by macroscopic observation of the growth morphology followed by microscopy after staining with lactophenol cotton blue. Four fungal genera namely; Mucor (12.50%), Aspergillus (18.06%), Tricophyton (5.56%) and Penicillium spp. (4.17%) were isolated from water samples. Similar fungi were also isolated from the fish skin swabs in the following order; Mucor spp. (49.57%), Aspergillus sp.(31.30%), Trichophyton sp.(10.43%) and Penicillium sp.(8.0%). Finding these fungi in the fish holding water might have occurred through the use of contaminated and/or decomposed feed, from runoffs, waste water discharges from nearby human settlements into the aquatic environment. The infection of fish by the isolated fungi diminishes both the aesthetic and economic value of fish. Attention must therefore be paid to fish hygiene and fish health management practices must be upheld. We hereby recommend that fish meant for human consumption be properly exposed to temperature high enough to eliminate contaminating fungi.

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Section: Discussionmentioning

confidence: 87%

Fungi associated with african mudfish (<i>Clarias gariepinus</i>, Burchell 1822) in selected fish farms and dams in Zaria and its environs, Kaduna State, Nigeria

Atawodi¹,

Yola²,

Kawo³

et al. 2018

Bayero J. Pure App. Sci.

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show abstract

“…[60] isolated five different species of fungi including Fusarium, Aspergillus, Rhizopus, Mucor, and Penicillium from 8 edible smoke-dried freshwater fishes. [61] reported that aspergillomycosis has been principally described in African fish, especially the tilapia Oreochromis sp. A number of Aspergillus species such as A. flavus, A. japonicus, and A. terreus are involved in this infection.…”

Section: Discussionmentioning

confidence: 99%

Screening of Bacterial and Fungal Biota Associated with Oreochromis niloticus in Lake Manzala and Its Impact on Human Health

Zaky¹,

Ibrahim²

2017

Health

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In this study fish samples were investigated for Bacteria and Fungi, in fish parts, such as intestine, gills and skin. Bacterial counts of Total viable bacteria (T.V.B) reached more than 9.5 × 10 5 cfu and faecal coliforms (F.C) reached 1.2 × 10 5 cfu. Different species were identified, Using API technology. Escherichia coli comes first by being recording thirty number case of isolation constituting 36%, it followed by Proteus mirabilis which is represented by twenty four number case of isolation accounting for 30%. Other taxa viz: Klebsiella pneumonia, Citrobacter freundii, Providencia stuartii and Erwinia sp. came next according to their case number of isolation, they represented only by 7%. They showed different antibiotics with different inhibitory concentrations, resistance pattern to gentamycin 10 μg, Penicillin G, tetracycline 30 μg, Ampicillin 10 μg, Ampicillin 30 μg, chloramphenicol (C) 30 μg, Rifampicin 25 μg, Streptomycin 5 μg, cefotaxime 15 μg. Mycological investigation revealed the presence of variety of fungal species, particularly, toxigenic species, such as, Aspergillus spp, Penicillium spp and Fusarium spp. These results are indication of the spoilage of fishes which caught from Lake Manzala and are risky for human consumption and hazardous to human health in this important area of Egypt, due to the high pollution condition of Lake Manzala.

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“…Aspergillomycosis is primarily a disease of tilapia Oreochromis sp. (Olufemi, 1983). These fungal species are presumably infectious through contamination of fish feed (Saleem et al, 2012).…”

Section: Discussionmentioning

confidence: 98%

A novel report of fungal pathogen Aspergillus awamori causing black gill infection on Litopenaeus vannamei (pacific white shrimp)

2015

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The Aspergilli as Pathogens of Cultured Fishes

Cited by 7 publications

References 16 publications

Fungi associated with african mudfish (<i>Clarias gariepinus</i>, Burchell 1822) in selected fish farms and dams in Zaria and its environs, Kaduna State, Nigeria

Fungi associated with african mudfish (<i>Clarias gariepinus</i>, Burchell 1822) in selected fish farms and dams in Zaria and its environs, Kaduna State, Nigeria

Screening of Bacterial and Fungal Biota Associated with Oreochromis niloticus in Lake Manzala and Its Impact on Human Health

A novel report of fungal pathogen Aspergillus awamori causing black gill infection on Litopenaeus vannamei (pacific white shrimp)

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