Prevalence and Impacts of Vibrio alginolyticus infections in Red Sea Fishes from the Coastal Waters of Hurghada, Egypt
Abdellah, M., Abd El-Galil, M., Mohamed, M., Mohamed, F. (2025). Prevalence and Impacts of Vibrio alginolyticus infections in Red Sea Fishes from the Coastal Waters of Hurghada, Egypt. EKB Journal Management System, 3(1), 41-48. doi: 10.21608/ijcvr.2025.353661.1015
Mahmoud Abdel-Rahman Mohamed Abdellah; Mohamed Abd El-Aziz Ahmed Abd El-Galil; Mahmoud Hashem Mohamed; Fatma Abdel-Moghny Salem Mohamed. "Prevalence and Impacts of Vibrio alginolyticus infections in Red Sea Fishes from the Coastal Waters of Hurghada, Egypt". EKB Journal Management System, 3, 1, 2025, 41-48. doi: 10.21608/ijcvr.2025.353661.1015
Abdellah, M., Abd El-Galil, M., Mohamed, M., Mohamed, F. (2025). 'Prevalence and Impacts of Vibrio alginolyticus infections in Red Sea Fishes from the Coastal Waters of Hurghada, Egypt', EKB Journal Management System, 3(1), pp. 41-48. doi: 10.21608/ijcvr.2025.353661.1015
Abdellah, M., Abd El-Galil, M., Mohamed, M., Mohamed, F. Prevalence and Impacts of Vibrio alginolyticus infections in Red Sea Fishes from the Coastal Waters of Hurghada, Egypt. EKB Journal Management System, 2025; 3(1): 41-48. doi: 10.21608/ijcvr.2025.353661.1015

Prevalence and Impacts of Vibrio alginolyticus infections in Red Sea Fishes from the Coastal Waters of Hurghada, Egypt

International Journal of Comprehensive Veterinary Research
Volume 3, Issue 1, June 2025, Page 41-48  XML PDF (850.19 K)
Document Type: Research article
DOI: 10.21608/ijcvr.2025.353661.1015
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Authors
Mahmoud Abdel-Rahman Mohamed Abdellah email 1; Mohamed Abd El-Aziz Ahmed Abd El-Galil2; Mahmoud Hashem Mohamed3; Fatma Abdel-Moghny Salem Mohamed4
1Fish diseases Lab., Aquaculture division, National institute of Oceanography and Fisheries, Hurghada branch
2Fish Diseases and Management Department, Faculty of Veterinary Medicine, Sohag University, Sohag, Egypt
3Fish Diseases Dept., Faculty of Veterinary Medicine, New Valley University, Egypt
4Fish Diseases Lab., National Institute of Oceanography and Fisheries, Egypt
Abstract
This study investigated the prevalence of V. alginolyticus infections in two marine fish species, Siganus rivulatus and Rhabdosargus haffara. The overall prevalence was 18.84% among the examined sample. A significant difference in infection rates was observed between the two species, with R. haffara exhibiting a higher infection rate of 61.54% compared to a lower rate of 38.46% in S. rivulatus. The results highlight V. alginolyticus as an important pathogen for both species, with R. haffara being more susceptible. The pathogen was identified through morpho-chemical tests, and experimental infection trials confirmed its pathogenicity in both species with 40, 60% mortality rates in S. rivulatus and R. haffara. Additionally, V. alginolyticus was highly sensitive to Tetracycline, Ofloxacin, and Chloramphenicol. Histopathological examination of infected S. rivulatus showed significant inflammatory and degenerative changes. These findings emphasize the importance of monitoring and controlling Vibrio infections to protect marine fish health and support sustainable aquaculture practices.
Keywords
Red Sea; Vibrio alginolyticus; Siganus rivulatus; , Rhabdosargus haffara; , isolation
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