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193867

Molecular detection of the most common bacterial pathogens affecting economically important Egyptian Red Sea fishes

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Last updated: 01 Jan 2025

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Abstract

The current study aimed to investigate the most common pathogenic bacteria that are naturally infecting wild marine fishes collected at different localities along the coastline zone of Hurghada City, Egypt. A total of 300 samples of marbled spine foot Siganus rivulatus and the Haffara Seabream Rhabdosargus haffara were subjected to clinical and bacteriological examinations. The examined fishes showed the characteristic clinical signs and postmortem lesions of vibriosis and photobacteriosis. Based on the morpho-chemical characterization, bacterial isolates retrieved from the naturally infected fishes were identified as Vibrio spp. and Photobacterium spp. Through sequencing 16S rRNA genes, the identities of bacterial isolates were confirmed as V. alginolyticus, V. vulnificus, P. damselae subsp. damselae and P. damselae subsp < em> piscicida. Vibrio alginolyticus was the most frequent isolated bacterial pathogen and represented 54.4% and 46.7% of the total isolates recovered from S. rivulatus and R. haffara, respectively. Thus, the current study confirmed that Vibrio and Photobacterium species remain the most prevalent bacterial pathogens infecting Egyptian Red Sea fishes.  From food safety perspective, these types of infections could pose potential public health hazards.

DOI

10.21608/ejabf.2021.193867

Keywords

Vibrio alginolyticus, V. vulnificus, Photobacterium Damselae, Red Sea fishes, Sequencing, Phylogenetic analysis

Authors

First Name

Asmaa

Last Name

W. Soliman et al.

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Volume

25

Article Issue

4

Related Issue

26733

Issue Date

2021-07-01

Receive Date

2021-09-09

Publish Date

2021-07-01

Page Start

669

Page End

688

Print ISSN

1110-6131

Online ISSN

2536-9814

Link

https://ejabf.journals.ekb.eg/article_193867.html

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https://ejabf.journals.ekb.eg/service?article_code=193867

Order

41

Type

Original Article

Type Code

103

Publication Type

Journal

Publication Title

Egyptian Journal of Aquatic Biology and Fisheries

Publication Link

https://ejabf.journals.ekb.eg/

MainTitle

Molecular detection of the most common bacterial pathogens affecting economically important Egyptian Red Sea fishes

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Article

Created At

22 Jan 2023