DAO Diseases of Aquatic Organisms Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsSpecials DAO 23:25-31 (1995) - doi:10.3354/dao023025 Susceptibility of Atlantic cod Gadus morhua, halibut Hippoglossus hippoglossus and wrasse (Labridae) to Aeromonas salmonicida subsp. salmonicida and the possibility of transmission of furunculosis from farmed salmon Salmo salar to marine fish Hjeltnes B, Bergh Ø, Wergeland H, Holm JC The possibility of transmission of Aeromonas salmonicida subsp. salmonicida from Atlantic salmon Salmo salar to cod Gadus morhua, halibut Hippoglossus hippoglossus, and wrasse (Labridae) was studied in both laboratory cohabitation and injection challenge trials, and in a field situation during an outbreak of furunculosis in Atlantic salmon in 2 sea farms containing both cod and salmon. A. salmonicida subsp. salmonicida was isolated from cod, halibut and wrasse, but only occasionally. The injection challenge studies with A. salmonicida subsp. salmonicida were carried out on cod and halibut. Despite challenge with 4.6 x 103, 4.6 x 104 and 4.6 x 105 CFU (colony-forming units) of the bacterium, only 1 halibut died, whereas no mortality occurred in the cod groups. In cohabitation challenge trials in which cod, halibut and wrasse were kept together with infected salmon, 1 cod and 1 halibut died, with subsequent isolation of A. salmonicida subsp. salmonicida from their kidneys. In a group of salmon challenged in the same way with infected salmon cohabitants, all the salmon died. In the field study, there were high mortalities of salmon due to furunculosis. However, A. salmonicida subsp. salmonicida was isolated from only 1 of the wrasse used as 'cleaner fish' for the salmon. A. salmonicida was not isolated from cod during the field study. The results suggest that A. salmonicida subsp. salmonicida can be transmitted from salmon and cause disease in cod, halibut and wrasse, but that this is a relatively rare event. Aeromonas salmonicida . Marine fish . Transmission Full text in pdf format PreviousNextExport citation RSS - Facebook - Tweet - linkedIn Cited by Published in DAO Vol. 23, No. 1. Publication date: September 14, 1995 Print ISSN:0177-5103; Online ISSN:1616-1580 Copyright © 1995 Inter-Research.