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Atypical Aeromonas salmonicida Isolated from Diseased Turbot (Scophtalmus maximus L.)

Acta Veterinaria Scandinavica volume 37, pages 139–146 (1996)Cite this article

Abstract

Atypical Aeromonas salmonicida were isolated from 3 outbreaks of disease among farmed turbot (Scophthalmus maximus L.) in 3 different farms, 1 from Norway (Nl) and 2 from Denmark (DK1 and DK2). In all 3 cases, the incidence of disease and mortality was high and the main characteristic pathological finding was skin ulcers and septicaemia. The isolated bacteria were subjected to a thorough phenotypic and genotypic examination and comparison in the laboratory. All 3 isolates belonged to A. salmonicida but dis-played some very different biochemical properties. However, the 2 Danish strains, DK1 and DK2 had identical ribotypes but different from that of Nl, whereas the plasmid pro-files of DK1 and Nl were identical but different from that of DK2. These observations emphasize the need for an improvement of our understanding of the taxonomy and epi-demiology of atypical A. salmonicida.

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Acknowledgments

This work was supported by The Danish Agricultural and Veterinary Research Council, grant no. 13-4710-1. The technical assistance of Mrs. M. HØjgård is gratefully appreciated.

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Authors and Affiliations

  1. Laboratory of Fish Diseases, Department of Veterinary Microbiology, The Royal Veterinary and Agricultural University, Bülowsvej 13, DK-1870, Frederiksberg C, Denmark

    J. L. Larsen & K. Pedersen

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  1. J. L. Larsen
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  2. K. Pedersen
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Correspondence to J. L. Larsen.

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Larsen, J.L., Pedersen, K. Atypical Aeromonas salmonicida Isolated from Diseased Turbot (Scophtalmus maximus L.). Acta Vet Scand 37, 139–146 (1996). https://doi.org/10.1186/BF03548106

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Acta Veterinaria Scandinavica

ISSN: 1751-0147