Aeromonas sobria, a causative agent of disease in farmed perch, Perca fluviatilis L.


Wahli, T; Burr, SE; Pugovkin, D; Mueller, O; Frey, J; (2005) Aeromonas sobria, a causative agent of disease in farmed perch, Perca fluviatilis L. Journal of fish diseases, 28 (3). pp. 141-50. ISSN 0140-7775 DOI: https://doi.org/10.1111/j.1365-2761.2005.00608.x

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Abstract

Significant numbers of perch, Perca fluviatilis, raised on a pilot fish farm in Switzerland presented focal skin lesions on the lateral sides and fin rot. Mortality rates reached levels of up to 1% of the total fish on the farm per day. Virtually pure cultures of Aeromonas sobria were isolated from the liver, kidney, spleen and skin lesions of affected fish. Aeromonas sobria isolated from the farmed perch had a haemolytic effect on sheep and trout erythrocytes, autoaggregated, was cytotoxic for cultured fish cells and possessed genes involved in type III protein secretion. Experimental infection of naive perch with a single colony isolate of A. sobria from an affected farm fish resulted in the development of clinical signs identical to those seen on the farm. The results indicate that A. sobria can act as a primary pathogen of perch.

Item Type: Article
Faculty and Department: Faculty of Infectious and Tropical Diseases > Dept of Clinical Research
PubMed ID: 15752274
Web of Science ID: 227479700003
URI: http://researchonline.lshtm.ac.uk/id/eprint/3996

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