In this work, we studied a disease outbreak that affected meagre (Argyrosomus regius) at temperature of 14–15 °C, and reached mortality rate 45% in one week. Moribund fish showed neither external nor internal signs disease. However, large number bacteria, phenotypically similar pure culture, were recovered from the liver kidney. A further phenotypic, genotypic serological characterization selec...

Two different batches of meagre Argyrosomus regius were stocked in the same floating cage located in north-eastern Sardinia (western Mediterranean Sea). After 4 mo, the fish started showing non-specific disease signs, such as lethargy, emaciation, gill anaemia and mortality. In total 65 specimens of meagre of both stocks were sampled for parasitological and microbiological analysis, and only 1 ...