Journal
PATHOGENS
Volume 11, Issue 2, Pages -Publisher
MDPI
DOI: 10.3390/pathogens11020131
Keywords
tenacibaculosis; Tenacibaculum maritimum; Platax orbicularis; aquaculture; serotyping; 16S rRNA sequencing; multi-locus sequence analysis (MLSA); histology; qPCR diagnosis assay; experimental infection
Categories
Funding
- IFREMER
- Direction des Ressources Marines
- Ministere de l'Economie Verte et du Domaine en charge des Mines et de la Recherche de Polynesie Francaise through << Tenacifight >> project (2020-2022)
- IFREMER-DRM scholarship
Ask authors/readers for more resources
The orbicular batfish, the most important marine fish reared in French Polynesia, has been facing severe outbreaks of "white-patch disease" since 2011, threatening the sustainability of its aquaculture. The disease has been linked to the pathogen T. maritimum, and there is genetic diversity among the isolates, which is crucial for epidemiological studies and the development of management and control strategies.
The orbicular batfish (Platax orbicularis), also called 'Paraha peue' in Tahitian, is the most important marine fish species reared in French Polynesia. Sudden and widespread outbreaks of severe 'white-patch disease' have occurred since 2011 in batfish farms one to three weeks after the transfer of juveniles from bio-secured hatcheries to lagoon cages. With cumulative mortality ranging from 20 to 90%, the sustainability of aquaculture of this species is severely threatened. In this study, we report for the first time the isolation from diseased batfish of several isolates belonging to the species Tenacibaculum maritimum, a major pathogen of many marine fish species. Histopathological analysis, an experimental bath challenge and a field monitoring study showed that T. maritimum is associated with 'white-patch disease'. Moreover, molecular and serological analyses performed on representative isolates revealed some degree of genetic diversity among the isolates, a finding of primary importance for epidemiological studies and the development of management and control strategies such as vaccination.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available