Journal article
Presence and genetic variability of Piscine orthoreovirus genotype 1 (PRV-1) in wild salmonids in Northern Europe and North Atlantic Ocean
Public Sector Consultancy, National Institute of Aquatic Resources, Technical University of Denmark1
Norwegian University of Life Sciences2
National Institute of Aquatic Resources, Technical University of Denmark3
Faroese Food and Veterinary Agency4
Havstovan5
National Veterinary Institute6
CER Groupe, Division Hormonologie7
Marine Institute8
Conservatoire National du Saumon Sauvage9
National Oceanic and Atmospheric Administration10
...and 0 morePiscine orthoreovirus genotype 1 (PRV-1) is widespread in farmed Atlantic salmon (Salmo salar L.) populations in northern Europe, Canada and Chile. PRV-1 occurs in wild fish in Norway and Canada; however, little information of its geographical distribution in wild populations is currently available, and the effect of PRV-1 infection in wild populations is currently unknown.
In this study, we present the findings of a survey conducted on 1,130 wild salmonids sampled in Denmark, Sweden, Ireland, Faroe Islands, France, Belgium and Greenland between 2008 and 2017. PRV-1 is reported for the first time in wild salmonids in Denmark, Sweden, Faroe Island and Ireland. The annual PRV-1 prevalence ranged from 0% in France, Belgium and Greenland to 43% in Faroe Islands.
In total, 66 samples tested positive for PRV-1, including Atlantic salmon broodfish returning to spawn and Atlantic salmon collected at the feeding ground north of Faroe Islands. The phylogenetic analysis of S1 sequences of the PRV-1 isolates obtained in this survey did not show systematic geographical distribution.
This study sheds light on the spread and genetic diversity of the virus identified in populations of free-living fish and provides rationale for screening wild broodfish used in restocking programmes.
Language: | English |
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Year: | 2019 |
Pages: | 1107-1118 |
ISSN: | 13652761 and 01407775 |
Types: | Journal article |
DOI: | 10.1111/jfd.13025 |
ORCIDs: | Vendramin, Niccolò , Cuenca, Argelia , Sørensen, Juliane , Alencar, Anna Luiza Farias , Iburg, Tine M , Olesen, Niels Jørgen , 0000-0002-2001-9652 and 0000-0001-9911-5948 |