First detection of Ichthyophonus sp. in invasive wild pink salmon ( Oncorhynchus gorbuscha) from the North Atlantic Ocean
Abstract Pacific pink salmon ( Oncorhynchus gorbuscha ) were deliberately introduced to rivers surrounding the White Sea and has spread to Norway and several other countries surrounding the North Atlantic Ocean. In August 2021, a female pink salmon displaying pale gills and abnormal behaviour was ca...
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Online Access: | http://dx.doi.org/10.1111/jfd.13990 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfd.13990 |
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crwiley:10.1111/jfd.13990 2024-09-15T17:56:26+00:00 First detection of Ichthyophonus sp. in invasive wild pink salmon ( Oncorhynchus gorbuscha) from the North Atlantic Ocean Erkinharju, Toni Hansen, Haakon Garseth, Åse Helen 2024 http://dx.doi.org/10.1111/jfd.13990 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfd.13990 en eng Wiley http://creativecommons.org/licenses/by-nc/4.0/ Journal of Fish Diseases volume 47, issue 9 ISSN 0140-7775 1365-2761 journal-article 2024 crwiley https://doi.org/10.1111/jfd.13990 2024-08-13T04:18:36Z Abstract Pacific pink salmon ( Oncorhynchus gorbuscha ) were deliberately introduced to rivers surrounding the White Sea and has spread to Norway and several other countries surrounding the North Atlantic Ocean. In August 2021, a female pink salmon displaying pale gills and abnormal behaviour was captured in River Lakselva in Northern Norway and later submitted to the Norwegian Veterinary Institute (NVI) for post‐mortem examination. Histological examination of organ samples revealed structures indicative of systemic ichthyophoniasis, caused by Ichthyophonus sp. The parasites appeared to be especially abundant in the heart and skeletal musculature, and local tissue responses were assessed to be absent or very mild. Sequences of the ribosomal 18S rRNA and the mitochondrial cytochrome oxidase 1 (CO1) genes confirmed the diagnosis and identified the pathogen as Ichthyophonus sp. The CO1 sequence further established that the isolate from pink salmon was most similar to sequences of Ichthyophonus sp. from Atlantic salmon, Salmo salar , from the Atlantic Ocean on the east coast of the US and from Atlantic herring, Clupea harengus , from Iceland. We here report the first detection of Ichthyophonus sp. in pink salmon in the North Atlantic Ocean. Article in Journal/Newspaper Atlantic salmon Iceland North Atlantic Northern Norway Oncorhynchus gorbuscha Pink salmon Salmo salar White Sea Wiley Online Library Journal of Fish Diseases 47 9 |
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Wiley Online Library |
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crwiley |
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English |
description |
Abstract Pacific pink salmon ( Oncorhynchus gorbuscha ) were deliberately introduced to rivers surrounding the White Sea and has spread to Norway and several other countries surrounding the North Atlantic Ocean. In August 2021, a female pink salmon displaying pale gills and abnormal behaviour was captured in River Lakselva in Northern Norway and later submitted to the Norwegian Veterinary Institute (NVI) for post‐mortem examination. Histological examination of organ samples revealed structures indicative of systemic ichthyophoniasis, caused by Ichthyophonus sp. The parasites appeared to be especially abundant in the heart and skeletal musculature, and local tissue responses were assessed to be absent or very mild. Sequences of the ribosomal 18S rRNA and the mitochondrial cytochrome oxidase 1 (CO1) genes confirmed the diagnosis and identified the pathogen as Ichthyophonus sp. The CO1 sequence further established that the isolate from pink salmon was most similar to sequences of Ichthyophonus sp. from Atlantic salmon, Salmo salar , from the Atlantic Ocean on the east coast of the US and from Atlantic herring, Clupea harengus , from Iceland. We here report the first detection of Ichthyophonus sp. in pink salmon in the North Atlantic Ocean. |
format |
Article in Journal/Newspaper |
author |
Erkinharju, Toni Hansen, Haakon Garseth, Åse Helen |
spellingShingle |
Erkinharju, Toni Hansen, Haakon Garseth, Åse Helen First detection of Ichthyophonus sp. in invasive wild pink salmon ( Oncorhynchus gorbuscha) from the North Atlantic Ocean |
author_facet |
Erkinharju, Toni Hansen, Haakon Garseth, Åse Helen |
author_sort |
Erkinharju, Toni |
title |
First detection of Ichthyophonus sp. in invasive wild pink salmon ( Oncorhynchus gorbuscha) from the North Atlantic Ocean |
title_short |
First detection of Ichthyophonus sp. in invasive wild pink salmon ( Oncorhynchus gorbuscha) from the North Atlantic Ocean |
title_full |
First detection of Ichthyophonus sp. in invasive wild pink salmon ( Oncorhynchus gorbuscha) from the North Atlantic Ocean |
title_fullStr |
First detection of Ichthyophonus sp. in invasive wild pink salmon ( Oncorhynchus gorbuscha) from the North Atlantic Ocean |
title_full_unstemmed |
First detection of Ichthyophonus sp. in invasive wild pink salmon ( Oncorhynchus gorbuscha) from the North Atlantic Ocean |
title_sort |
first detection of ichthyophonus sp. in invasive wild pink salmon ( oncorhynchus gorbuscha) from the north atlantic ocean |
publisher |
Wiley |
publishDate |
2024 |
url |
http://dx.doi.org/10.1111/jfd.13990 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfd.13990 |
genre |
Atlantic salmon Iceland North Atlantic Northern Norway Oncorhynchus gorbuscha Pink salmon Salmo salar White Sea |
genre_facet |
Atlantic salmon Iceland North Atlantic Northern Norway Oncorhynchus gorbuscha Pink salmon Salmo salar White Sea |
op_source |
Journal of Fish Diseases volume 47, issue 9 ISSN 0140-7775 1365-2761 |
op_rights |
http://creativecommons.org/licenses/by-nc/4.0/ |
op_doi |
https://doi.org/10.1111/jfd.13990 |
container_title |
Journal of Fish Diseases |
container_volume |
47 |
container_issue |
9 |
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1810432638699175936 |