Vibrio alginolyticus infection in Asian seabass (Lates calcarifer,Bloch) reared in open sea floating cages in India |
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| Authors: | Sulumane Ramachandra Krupesha Sharma Gaurav Rathore Dev K Verma Narasimhulu Sadhu Kuttickal Kuriakose Philipose |
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| Institution: | 1. Central Marine Fisheries Research Institute (Indian Council of Agricultural Research), Karwar Research Centre, , Karwar, Karnataka, 581 301, India;2. National Bureau of Fish Genetic Resources, , Lucknow, Uttar Pradesh, 226 002, India |
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| Abstract: | Asian seabass (Lates calcarifer) has been designated as a candidate species for open sea cage culture in India. A case of vibriosis in Asian seabass reared in open sea floating cages is reported. Haemorrhage and ulcer were observed grossly in the diseased fish. The pathogen, identified as Vibrio alginolyticus based on biochemical and molecular characterization, was isolated from liver, gill, kidney, brain and blood. Histological examination of the diseased fish showed congestion, haemorrhage and necrosis in vital organs. The LD50 studies showed that the organism was virulent to Asian seabass, and the LD50 value was 103.2 CFU g?1 fish. |
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| Keywords: | Asian seabass cage culture Vibrio alginolyticus pathology |
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