Limited Experimental Susceptibility of Post-Smolt Atlantic salmon (Salmo salar) to an Emergent Strain of Vibrio Anguillarum Serotype O3

Preliminary evidence has showed an emergent serotype O3 (SO3) strain of Vibrio anguillarum to cause mortality in pre-smolt Atlantic salmon (Salmo salar) by injection with >105 colony forming units (cfus). Here, we sought to identify the susceptibility of Atlantic salmon post-smolts to this emerge...

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Bibliographic Details
Published in:Aquaculture Journal 2024-11, Vol.4 (4), p.283-292
Main Authors: Lifgren, Demitri, Turner, Sarah M., Welch, Timothy J., Bouchard, Deborah, Polinski, Mark P.
Format: Article
Language:English
Subjects:
Atlantic salmon
qPCR
serotype O3
susceptibility
Vibro anguillarum
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Summary:Preliminary evidence has showed an emergent serotype O3 (SO3) strain of Vibrio anguillarum to cause mortality in pre-smolt Atlantic salmon (Salmo salar) by injection with >105 colony forming units (cfus). Here, we sought to identify the susceptibility of Atlantic salmon post-smolts to this emergent strain by both injection and cohabitation to better understand transmission risk within cultured salmon and possibly between salmon and Atlantic menhaden (Brevoortia tyrannus), where this strain was identified. We identified that although mortality could be induced with a high-dose (>106 cfus) intraperitoneal injection of the emergent SO3 strain (cumulative mortality of 40%), post-smolt Atlantic salmon were highly refractory to a low dose (
ISSN:2673-9496
2673-9496
DOI:10.3390/aquacj4040021