<i>Aeromonas veronii</i> Infection Associated with High Morbidity and Mortality in Farmed European Seabass <i>Dicentrarchus labrax</i> in the Aegean Sea, Greece

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  • Smyrli Maria
    Institute of Marine Biology, Biotechnology and Aquaculture, Hellenic Centre for Marine Research Department of Biology, University of Crete
  • Prapas Athanasios
    Department of Pathology of Aquatic Organisms, Veterinary Center of Athens
  • Rigos George
    Institute of Marine Biology, Biotechnology and Aquaculture, Hellenic Centre for Marine Research
  • Kokkari Constantina
    Institute of Marine Biology, Biotechnology and Aquaculture, Hellenic Centre for Marine Research
  • Pavlidis Michail
    Department of Biology, University of Crete
  • Katharios Pantelis
    Institute of Marine Biology, Biotechnology and Aquaculture, Hellenic Centre for Marine Research

Bibliographic Information

Other Title
  • エーゲ海ギリシャ沿岸で養殖されているヨーロッパスズキのAeromonas veronii感染症
  • Aeromonas veronii Infection Associated with High Morbidity and Mortality in Farmed European Seabass Dicentrarchus labrax in the Aegean Sea, Greece

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Description

In the present study, we examined a disease caused by Aeromonas veronii bv. sobria in sea cage-farmed European seabass Dicentrarchus labrax, in the Aegean Sea, Greece. Commercial sized fish were affected by A. veronii bv. sobria and exhibited high morbidity and mortality. Gross pathologic features and histology revealed a systemic infection characterized by the presence of abscesses and chronic granulomatous inflammation. Two clinical bacterial isolates (Aero NS and Aero PDB) were identified as A. veronii bv. sobria based on bacteriological characteristics and sequence analysis for 16S rRNA and gyrB genes. Infectivity tests in the form of intraperitoneal injection administration (Aero NS) and immersion in a bacterial suspension (Aero NS and Aero PDB) revealed that both isolates could cause clinical signs similar to those observed in the field and high mortality rate. To our knowledge, this is the first report of A. veronii bv. sobria isolated from farmed European seabass in the Mediterranean Sea accompanied by supporting data of its pathogenicity.

Journal

  • Fish Pathology

    Fish Pathology 52 (2), 68-81, 2017

    The Japanese Society of Fish Pathology

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