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Studies on Photobacterium damselae subsp. damselae infecting marine finfish

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Title Studies on Photobacterium damselae subsp. damselae infecting marine finfish
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Creator Ezhil Nilavan, S.
Roselind, G.
Prasad, M.M.
 
Subject Not Available
 
Description Not Available
Marine fish farming is a very important activity of Indian aquaculture industry. The main marine fish species intensively cultured are cobia, asian seabass and pompano and several new marine fish species are being evaluated as potential candidates for aquaculture production. The intensive culture of these new fish species has favoured the appearance of several outbreaks with varied mortality rates. In recent years, Photobacterium damselae subsp. damselae has been repeatedly isolated from epizootic outbreaks affecting several cultured fish species in different geographical regions. In addition, this bacterial pathogen has been reported to cause diseases in humans, and for this reason, it may be considered as an agent of zoonoses. The present study was
aimed to characterize and identify Photobacterium damselae subsp. damselae present in diseased cobia collected from Gulf of Mannar region of India. Photobacterium damselae subsp. damselae was isolated from gills, kidney, liver and spleen by using the thiosulfate citrate bile salts sucrose agar supplemented with 1.5 per cent NaCl medium. A total of 11 Photobacterium damselae subsp. damselae isolates were studied together with one reference strain. The biotyping and multiplex PCR analysis of ure C and 16S rRNA, 16S rDNA, Damselysin genes confirmed the phenotypic characterization of the isolates as Photobacterium damselae
subsp. damselae. Experimental infection studies revealed Photobacterium damselae subsp. damselae was found in the internal organs of cobia and it showed pathogenicity to fish. The study reports the first time
isolation of this bacterium from cultured cobia in Gulf of Mannar region, which warns us to pay more attention to fishery in this geographical area.
Not Available
 
Date 2019-11-25T07:54:22Z
2019-11-25T07:54:22Z
2017-11-21
 
Type Other
 
Identifier Ezhil Nilavan, S.,Roselind, G. and Prasad, M.M. (2017) Studies on Photobacterium damselae subsp. damselae infecting marine finfish. In: (Thomas, S.N., Rao, B.M., Madhu, V.R., Asha, K.K., Binsi, P.K., Viji, P., Sajesh, V.K. and Jha, P.N., Eds.) Fostering Innovations in Fisheries and Aquaculture: Focus on Sustainability and Safety – Book of Abstracts, 11th Indian Fisheries and Aquaculture Forum, ICAR-Central Institute of Fisheries Technology, Kochi and Asian Fisheries Society, Indian Branch, 21-24 November, 2017, Kochi, India, pp. 318.
978-81-933623-1-0
http://krishi.icar.gov.in/jspui/handle/123456789/25265
 
Language English
 
Relation Not Available;
 
Publisher ICAR-Central Institute of Fisheries Technology, Kochi and Asian Fisheries Society, Indian Branch