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First detection of Flavobacterium psychrophilum in juvenile Siberian sturgeons (Acipenser baerii) and description of the pathological findings

Journal of Fish Diseases publish this investigation article

August 1st, 2023

Flavobacterium psychrophilum affects many cultured fish species and is considered one of the most important bacterial pathogens causing substantial economic losses in salmonid aquaculture worldwide. Here, F. psychrophilum was identified by matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS) and nested PCR as the aetiological agent causing mortality in diseased juvenile Siberian sturgeons (Acipenser baerii) reared on a freshwater fish farm. Diseased sturgeons were lethargic and displayed dark skin pigmentation, increased mucus production and the presence of skin ulcerations and haemorrhages specially on the ventral side and the base of fins. The histological examination of fish revealed proliferative branchitis, ulcerative and necrotizing dermatitis and myositis, lymphoid tissue atrophy, liver and kidney degeneration and thrombosis. To the best of our knowledge, this is the first report describing the infection of Siberian sturgeons by F. psychrophilum. The detection of F. psychrophilum in diseased Siberian sturgeons and the description of the pathological findings observed during the outbreak may contribute to a better understanding of the bacterium pathogenicity and the range of fish species susceptible to infection




Chinchilla-Rodríguez B., Vazquez-Fernandez E., Rebollada A., Perez-Sancho M., Dominguez L. and Rodriguez-Bertos A..




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First detection of Flavobacterium psychrophilum in juvenile Siberian sturgeons (Acipenser baerii) and description of the pathological findings

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First detection of Flavobacterium psychrophilum in juvenile Siberian sturgeons (Acipenser baerii) and description of the pathological findings



Participants:

Universidad ComplutenseServicio de Patología y Veterinaria Forense (SAP). Centro de Vigilancia Sanitaria Veterinaria (VISAVET). Universidad Complutense (UCM).

Universidad ComplutenseDepartamento de Medicina y Cirugía Animal. Facultad de Veterinaria. Universidad Complutense (UCM).

Universidad ComplutenseDepartamento de Sanidad Animal. Facultad de Veterinaria. Universidad Complutense (UCM).







Journal of Fish Diseases
FACTOR YEAR Q
2.200 2023

NLMID: 9881188

PMID: 37210748

ISSN: 0140-7775



TITLE: First detection of Flavobacterium psychrophilum in juvenile Siberian sturgeons (Acipenser baerii) and description of the pathological findings


JOURNAL: J Fish Dis


NUMERACIÓN: 46(8):887-894


AÑO: 2023


PUBLISHER: Blackwell Scientific Publications


AUTHORS: Chinchilla-Rodríguez B., Vazquez-Fernandez E., Rebollada A., Perez-Sancho M., Dominguez L. and Rodriguez-Bertos A..


First
Blanca Chinchilla Rodríguez
4th
Marta Pérez Sancho
5th
Lucas Domínguez Rodríguez
Last
Antonio Manuel Rodríguez Bertos

DOI: https://doi.org/10.1111/jfd.13801


CITE THIS PUBLICATION:

Chinchilla-Rodríguez B., Vazquez-Fernandez E., Rebollada A., Perez-Sancho M., Dominguez L. and Rodriguez-Bertos A. First detection of Flavobacterium psychrophilum in juvenile Siberian sturgeons (Acipenser baerii) and description of the pathological findings. Journal of Fish Diseases. 46(8):887-894. 2023. (A). ISSN: 0140-7775. DOI: 10.1111/jfd.13801


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