Journal of Marine Biology & OceanographyISSN: 2324-8661

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Research Article, J Mar Biol Oceanogr Vol: 5 Issue: 4

Detection of Bacterial Infections in Some Red Sea Fish in Hurghada

Mahmoud Hashiem Mohamed1*, Eman Khalifa2 and Yosra M. El Sherry3
1Fish diseases and Managements, Department of Animal Medicine, Faculty of Veterinary Medicine, University of Assuit, New Valley Branch, Egypt
2Dep. Of Microbiology Faculty Of Vet Med Alexanderia. University Matrouh Branch.
3Fish Diseases Dep. Faculty Of Vet Med aswan University
Corresponding author : Mahmoud Hashiem Mohamed
Fish diseases and Managements, Department of Animal Medicine, Faculty of Veterinary Medicine,University of Assuit, New valley branch, Egypt
Tel: +01007947186
E-mail: dm4467201@yahoo.com
Received: August 23, 2016 Accepted: October 13, 2016c Published: October 18, 2016
Citation: Mohamed MH, Khalifa E, El sherry YM (2016) Detection of Bacterial Infections in Some Red Sea Fish in Hurghada. J Mar Biol Oceanogr 5:4. doi:10.4172/2324-8661.1000164

Abstract

Detection of Bacterial Infections in Some Red Sea Fish in Hurghada

Marine fish are exposed to many diseases, especially bacterial one, where bacteria play the main role in occurrence of the disease and causing high economic losses in proposed marine aquaculture sector in Red Sea governorate and hence our study carried out in order to isolate and identified the bacterial isolates affecting economic marine fishes in Egypt as well as evaluate the effect of seasonal variation. In our study 300 samples from different five fish species include Siganus rivulatus, Mulloidicthys vanicolensis, Hipposcarus harid, Pterois volitans and Picasso trigger fish (Rhinecanthus assasi) from the Red Sea along Hurghada city coastline. 82 isolates from naturally examined fish species were obtained as following:18 isolates from Siganus rivulatus fish, 19 from Mulloidicthys vanicolensis, 31 from Hipposcarus harid, and 10 from Picasso trigger. The isolation in culture media revealed that 36 (12 %) of the infected fishes were positive for V. harveyi, 8 (2.66%) for V. arahemolyticum, 6 (2%) for V. anguillarum, 14 (4.66%) for P. damseale, 7 (2.33%) for V. furnissii and11 (3.66%) for T. maritmum. For vibrio spp. and P. damselae the highest total prevalence of infection was recorded in summer season (45.06%) while the lowest was recorded in winter (4.86%). Contrariwise the highest total prevalence of infection for T. maritmum was recorded in winter (8.53%) and the lowest was recorded summer (0 %). The former bacterial isolates were re-isolated in pure culture from experimentally infected fish.

Keywords: Marine fish, bacterial

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