Atlantic salmon Salmo salar and ballan wrasse Labrus bergylta display different susceptibility to clonal strains of Paramoeba perurans
Amoebic gill disease (AGD), caused by the marine amoeba Paramoeba perurans, is an important disease of farmed Atlantic salmon Salmo salar L. in Norway. The use of wrasse as cleaner fish in salmon net pens raises questions about interspecies transmission of pathogens such as P. perurans. In this stud...
Published in: | Diseases of Aquatic Organisms |
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Online Access: | https://hdl.handle.net/11250/2728357 https://doi.org/10.3354/dao03483 |
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ftimr:oai:imr.brage.unit.no:11250/2728357 2023-05-15T15:30:56+02:00 Atlantic salmon Salmo salar and ballan wrasse Labrus bergylta display different susceptibility to clonal strains of Paramoeba perurans Dahle, Ole Martin Vik Blindheim, Steffen H. Nylund, Are Karlsbakk, Egil Breck, Olav Glosvik, Henriette Andersen, Linda 2020 application/pdf https://hdl.handle.net/11250/2728357 https://doi.org/10.3354/dao03483 eng eng Fiskeri- og havbruksnæringens forskningsfinansiering: 901053 Diseases of Aquatic Organisms. 2020, 140 55-72. urn:issn:0177-5103 https://hdl.handle.net/11250/2728357 https://doi.org/10.3354/dao03483 cristin:1877618 55-72 140 Diseases of Aquatic Organisms Peer reviewed Journal article 2020 ftimr https://doi.org/10.3354/dao03483 2021-09-23T20:15:22Z Amoebic gill disease (AGD), caused by the marine amoeba Paramoeba perurans, is an important disease of farmed Atlantic salmon Salmo salar L. in Norway. The use of wrasse as cleaner fish in salmon net pens raises questions about interspecies transmission of pathogens such as P. perurans. In this study, cohabitant transmission of clonal isolates of P. perurans between Atlantic salmon and ballan wrasse Labrus bergylta Ascanius was examined, using isolates originating from both salmon and wrasse. The challenges resulted in AGD in both species, although less severely in wrasse. The amoeba isolate originating from ballan wrasse was more virulent than that originating from salmon, suggesting P. perurans strain-related virulence differences. The isolate originating from salmon showed limited proliferation in bath-challenged wrasse and salmon, and limited transfer to cohabitants. Our results support previous observations suggesting that salmon may be more susceptible to P. perurans and AGD than ballan wrasse. Treatment of P. perurans infection in wrasse is challenging, as it is a strictly marine fish species. In this study, brackish water (<15‰ seawater) treatment of AGD affected salmon and wrasse was examined. Both salmon and wrasse were treated for short periods (3 h and 24 h), and treatment of wrasse over longer periods (3-5 d) was also examined. Short exposure to brackish water was not enough to remove P. perurans, although the 24 h treatment reduced amoeba levels. It was not possible to culture or detect P. perurans from wrasse exposed to brackish water for 3 d, suggesting that this treatment would be effective in controlling the parasite. publishedVersion Article in Journal/Newspaper Atlantic salmon Salmo salar Institute for Marine Research: Brage IMR Ballan ENVELOPE(12.203,12.203,65.945,65.945) Norway Diseases of Aquatic Organisms 140 55 72 |
institution |
Open Polar |
collection |
Institute for Marine Research: Brage IMR |
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ftimr |
language |
English |
description |
Amoebic gill disease (AGD), caused by the marine amoeba Paramoeba perurans, is an important disease of farmed Atlantic salmon Salmo salar L. in Norway. The use of wrasse as cleaner fish in salmon net pens raises questions about interspecies transmission of pathogens such as P. perurans. In this study, cohabitant transmission of clonal isolates of P. perurans between Atlantic salmon and ballan wrasse Labrus bergylta Ascanius was examined, using isolates originating from both salmon and wrasse. The challenges resulted in AGD in both species, although less severely in wrasse. The amoeba isolate originating from ballan wrasse was more virulent than that originating from salmon, suggesting P. perurans strain-related virulence differences. The isolate originating from salmon showed limited proliferation in bath-challenged wrasse and salmon, and limited transfer to cohabitants. Our results support previous observations suggesting that salmon may be more susceptible to P. perurans and AGD than ballan wrasse. Treatment of P. perurans infection in wrasse is challenging, as it is a strictly marine fish species. In this study, brackish water (<15‰ seawater) treatment of AGD affected salmon and wrasse was examined. Both salmon and wrasse were treated for short periods (3 h and 24 h), and treatment of wrasse over longer periods (3-5 d) was also examined. Short exposure to brackish water was not enough to remove P. perurans, although the 24 h treatment reduced amoeba levels. It was not possible to culture or detect P. perurans from wrasse exposed to brackish water for 3 d, suggesting that this treatment would be effective in controlling the parasite. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Dahle, Ole Martin Vik Blindheim, Steffen H. Nylund, Are Karlsbakk, Egil Breck, Olav Glosvik, Henriette Andersen, Linda |
spellingShingle |
Dahle, Ole Martin Vik Blindheim, Steffen H. Nylund, Are Karlsbakk, Egil Breck, Olav Glosvik, Henriette Andersen, Linda Atlantic salmon Salmo salar and ballan wrasse Labrus bergylta display different susceptibility to clonal strains of Paramoeba perurans |
author_facet |
Dahle, Ole Martin Vik Blindheim, Steffen H. Nylund, Are Karlsbakk, Egil Breck, Olav Glosvik, Henriette Andersen, Linda |
author_sort |
Dahle, Ole Martin Vik |
title |
Atlantic salmon Salmo salar and ballan wrasse Labrus bergylta display different susceptibility to clonal strains of Paramoeba perurans |
title_short |
Atlantic salmon Salmo salar and ballan wrasse Labrus bergylta display different susceptibility to clonal strains of Paramoeba perurans |
title_full |
Atlantic salmon Salmo salar and ballan wrasse Labrus bergylta display different susceptibility to clonal strains of Paramoeba perurans |
title_fullStr |
Atlantic salmon Salmo salar and ballan wrasse Labrus bergylta display different susceptibility to clonal strains of Paramoeba perurans |
title_full_unstemmed |
Atlantic salmon Salmo salar and ballan wrasse Labrus bergylta display different susceptibility to clonal strains of Paramoeba perurans |
title_sort |
atlantic salmon salmo salar and ballan wrasse labrus bergylta display different susceptibility to clonal strains of paramoeba perurans |
publishDate |
2020 |
url |
https://hdl.handle.net/11250/2728357 https://doi.org/10.3354/dao03483 |
long_lat |
ENVELOPE(12.203,12.203,65.945,65.945) |
geographic |
Ballan Norway |
geographic_facet |
Ballan Norway |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
55-72 140 Diseases of Aquatic Organisms |
op_relation |
Fiskeri- og havbruksnæringens forskningsfinansiering: 901053 Diseases of Aquatic Organisms. 2020, 140 55-72. urn:issn:0177-5103 https://hdl.handle.net/11250/2728357 https://doi.org/10.3354/dao03483 cristin:1877618 |
op_doi |
https://doi.org/10.3354/dao03483 |
container_title |
Diseases of Aquatic Organisms |
container_volume |
140 |
container_start_page |
55 |
op_container_end_page |
72 |
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1766361408787709952 |