Studies on Vibriosis among Some Marine Fishes in Lake Temsah
Eissa, I., Aly, S., Derwa, H., Fawzy, A. (2017). Studies on Vibriosis among Some Marine Fishes in Lake Temsah. EKB Journal Management System, 22(1), 1-18. doi: 10.21608/scvmj.2017.62369
Ismail Eissa; Salah Aly; Hassan Derwa; Aml Fawzy. "Studies on Vibriosis among Some Marine Fishes in Lake Temsah". EKB Journal Management System, 22, 1, 2017, 1-18. doi: 10.21608/scvmj.2017.62369
Eissa, I., Aly, S., Derwa, H., Fawzy, A. (2017). 'Studies on Vibriosis among Some Marine Fishes in Lake Temsah', EKB Journal Management System, 22(1), pp. 1-18. doi: 10.21608/scvmj.2017.62369
Eissa, I., Aly, S., Derwa, H., Fawzy, A. Studies on Vibriosis among Some Marine Fishes in Lake Temsah. EKB Journal Management System, 2017; 22(1): 1-18. doi: 10.21608/scvmj.2017.62369

Studies on Vibriosis among Some Marine Fishes in Lake Temsah

Suez Canal Veterinary Medical Journal. SCVMJ
Article 1, Volume 22, Issue 1, June 2017, Page 1-18  XML PDF (1016.88 K)
Document Type: Original Article
DOI: 10.21608/scvmj.2017.62369
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Authors
Ismail Eissa1; Salah Aly2; Hassan Derwa3; Aml Fawzy* 4
1Dept. of Fish Diseases and Management,Faculty of Vet. Medicine, Suez Canal Univ.
2Dept. of Pathology, Faculty of Vet. Medicine, Suez Canal Univ.
3Dept. of Fish Diseases and Management, Faculty of Vet. Medicine, Suez Canal Univ.
4Directorate of Veterinary Medicine
Abstract
During the current study, a total of 160 marine fishes of two different species represented as: seabass (Dicentrarchus labrax) and Tilapia zillii randomly collected from Lake Temsah at Ismailia governorate from August 2015 to July 2016. Seventy-six of fishes found to be infected with both V. anguillarum and V. parahemolyticus, as Gram negative, short rod bacilli as comma shaped and motile bacteria. D. labrax was the most infected fish spp 41 %, pursued by Tilapia zillii 35 %. The highest prevalence of vibriosis among naturally infected marine fishes was recorded during summer 67.5 %, pursued by spring 55 %, then autumn 40 %, while the minimal prevalence 27.5 % was registered during winter. Molecular investigation of pure isolates using sets of both universal and specific primers gave PCR products with clear band of 120 and 519 bp lengths, respectively. Experimentally infected fish subjected to a dose (107) of V. anguillarum presented higher morbidity and mortality rate up to 80 %. Most of infected fish showed skin ulceration in the ocular side, others displayed redness and scattered hemorrhagic spots on the abdomen with fin erosion. The histopathology of naturally infected marine fishes exhibited severe inflammatory reactions manifested by leukocytes infiltration with activation of melanomacrophage centers as well as tissue necrosis.
 
Keywords
Marine Fishes; Vibrio Spp; Lake Temsah; Seasonal prevalence; experimental infection
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