RT Journal Article
T1 First isolation of aeromonas salmonicida subspecies salmonicida from diseased sea bass, dicentrarchus labrax (L.), cultured in Spain
A1 Fernández Álvarez, Clara
A1 Gijón, Daniel
A1 Álvarez, Mireya
A1 Santos Rodríguez, Ysabel
K1 Sea bass
K1 Aeromonas salmonicida subsp. salmonicida
K1 PCR
K1 MALDI-TOF
K1 Fatty acids
AB This work represents the first description of Aeromonas salmonicida subsp. salmonicida as causative agent of furunculosis in cultured sea bass, Dicentrarchus labrax (L.). Cumulative mortality in affected fish from two floating cages in the Mediterranean coast of Spain was 3.8%. Affected sea bass did not show the typical external signs of furunculosis in the first stages of the disease, however, when the disease progressed, open ulcers appeared on the skin and muscle. Internally, splenomegaly was the only pathological sign observed. Samples from diseased fish were subjected to standardized assays for pathogens screening. Negative results were obtained for parasites and fish viruses. A Gram-stain-negative rod-shaped bacterium was observed in smears from liver, kidney and spleen of all analysed fish. Pure bacterial cultures were recovered from liver, kidney and spleen of all diseased fish sampled during the two different outbreaks. Bacteriological, serological, molecular and chemotaxonomic analysis allowed the identification of the causative agent of sea bass mortalities as Aeromonas salmonicida subsp. salmonicida. The bacterial strains were susceptible to most of antimicrobial agents usually employed in aquaculture except to oxytetracycline. Pathogenicity assays demonstrated that the isolated bacteria were virulent for sea bass, turbot and rainbow trout.
PB Elsevier
SN 2352-5134
YR 2016
FD 2016
LK http://hdl.handle.net/10347/22947
UL http://hdl.handle.net/10347/22947
LA eng
NO Fernández Álvarez, C., Gijón, D., Álvarez, M. y Santos, Y. (2016). First isolation of aeromonas salmonicida subspecies salmonicida from diseased sea bass, dicentrarchus labrax (L.), cultured in Spain. Aquaculture Reports, vol. 4, 36-41
DS Minerva
RD 30 abr 2026