Reservoir hosts for Gyrodactylus salaris may play a more significant role in epidemics than previously thought
Background: Gyrodactylus salaris Malmberg, 1957 has had a devastating impact on wild Norwegian stocks of Atlantic salmon Salmo salar L., and it is the only Office International des Epizooties (OIE) listed parasitic pathogen of fish. The UK is presently recognised as G. salaris-free, and management p...
Published in: | Parasites & Vectors |
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Main Authors: | , , , , , , , , |
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Format: | Article in Journal/Newspaper |
Language: | English |
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BioMed Central
2014
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Online Access: | http://hdl.handle.net/1893/21331 https://doi.org/10.1186/s13071-014-0576-5 http://dspace.stir.ac.uk/bitstream/1893/21331/1/Paladini_Parasites%20and%20Vectors%202014.pdf |
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ftunivstirling:oai:dspace.stir.ac.uk:1893/21331 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
University of Stirling: Stirling Digital Research Repository |
op_collection_id |
ftunivstirling |
language |
English |
topic |
Parasite Salmo salar Atlantic salmon Salmo trutta Brown trout Thymallus thymallus Grayling Susceptibility Monogenea Pathogen |
spellingShingle |
Parasite Salmo salar Atlantic salmon Salmo trutta Brown trout Thymallus thymallus Grayling Susceptibility Monogenea Pathogen Paladini, Giuseppe Hansen, Haakon Williams, Chris F Taylor, Nicholas G H Rubio-Mejia, Olga L Denholm, Scott J Hytterod, Sigurd Bron, James Shinn, Andrew Reservoir hosts for Gyrodactylus salaris may play a more significant role in epidemics than previously thought |
topic_facet |
Parasite Salmo salar Atlantic salmon Salmo trutta Brown trout Thymallus thymallus Grayling Susceptibility Monogenea Pathogen |
description |
Background: Gyrodactylus salaris Malmberg, 1957 has had a devastating impact on wild Norwegian stocks of Atlantic salmon Salmo salar L., and it is the only Office International des Epizooties (OIE) listed parasitic pathogen of fish. The UK is presently recognised as G. salaris-free, and management plans for its containment and control are currently based on Scandinavian studies. The current study investigates the susceptibility of British salmonids to G. salaris, and determines whether, given the host isolation since the last glaciation and potential genetic differences, the populations under test would exhibit different levels of susceptibility, as illustrated by the parasite infection trajectory over time, from their Scandinavian counterparts. Methods: Populations of S. salar, brown trout Salmo trutta L., and grayling Thymallus thymallus (L.), raised from wild stock in UK government hatcheries, were flown to Norway and experimentally challenged with a known pathogenic strain of G. salaris. Each fish was lightly anaesthetised and marked with a unique tattoo for individual parasite counting. A single Norwegian population of S. salar from the River Lærdalselva was used as a control. Parasite numbers were assessed every seven days until day 48 and then every 14 days. Results: Gyrodactylus salaris regularly leads to high mortalities on infected juveniles S. salar. The number of G. salaris on British S. salar rose exponentially until the experiment was terminated at 33 days due to fish welfare concerns. The numbers of parasites on S. trutta and T. thymallus increased sharply, reaching a peak of infection on days 12 and 19 post-infection respectively, before declining to a constant low level of infection until the termination of the experiment at 110 days. Conclusions: The ability of S. trutta and T. thymallus to carry an infection for long periods increases the window of exposure for these two hosts and the potential transfer of G. salaris to other susceptible hosts. This study demonstrates that G. salaris can ... |
author2 |
Institute of Aquaculture National Veterinary Institute Environment Agency CEFAS - Centre for Environment, Fisheries and Aquaculture Science University of Stirling Scotland's Rural College (SRUC) orcid:0000-0003-4944-0499 orcid:0000-0003-3544-0519 orcid:0000-0002-5434-2685 |
format |
Article in Journal/Newspaper |
author |
Paladini, Giuseppe Hansen, Haakon Williams, Chris F Taylor, Nicholas G H Rubio-Mejia, Olga L Denholm, Scott J Hytterod, Sigurd Bron, James Shinn, Andrew |
author_facet |
Paladini, Giuseppe Hansen, Haakon Williams, Chris F Taylor, Nicholas G H Rubio-Mejia, Olga L Denholm, Scott J Hytterod, Sigurd Bron, James Shinn, Andrew |
author_sort |
Paladini, Giuseppe |
title |
Reservoir hosts for Gyrodactylus salaris may play a more significant role in epidemics than previously thought |
title_short |
Reservoir hosts for Gyrodactylus salaris may play a more significant role in epidemics than previously thought |
title_full |
Reservoir hosts for Gyrodactylus salaris may play a more significant role in epidemics than previously thought |
title_fullStr |
Reservoir hosts for Gyrodactylus salaris may play a more significant role in epidemics than previously thought |
title_full_unstemmed |
Reservoir hosts for Gyrodactylus salaris may play a more significant role in epidemics than previously thought |
title_sort |
reservoir hosts for gyrodactylus salaris may play a more significant role in epidemics than previously thought |
publisher |
BioMed Central |
publishDate |
2014 |
url |
http://hdl.handle.net/1893/21331 https://doi.org/10.1186/s13071-014-0576-5 http://dspace.stir.ac.uk/bitstream/1893/21331/1/Paladini_Parasites%20and%20Vectors%202014.pdf |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_relation |
Paladini G, Hansen H, Williams CF, Taylor NGH, Rubio-Mejia OL, Denholm SJ, Hytterod S, Bron J & Shinn A (2014) Reservoir hosts for Gyrodactylus salaris may play a more significant role in epidemics than previously thought. Parasites and Vectors, 7, Art. No.: 576. https://doi.org/10.1186/s13071-014-0576-5 576 http://hdl.handle.net/1893/21331 doi:10.1186/s13071-014-0576-5 25526740 WOS:000348945800001 2-s2.0-84989180585 607087 http://dspace.stir.ac.uk/bitstream/1893/21331/1/Paladini_Parasites%20and%20Vectors%202014.pdf |
op_rights |
© Paladini et al.; licensee BioMed Central This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated. http://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC0 PDM CC-BY |
op_doi |
https://doi.org/10.1186/s13071-014-0576-5 |
container_title |
Parasites & Vectors |
container_volume |
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container_issue |
1 |
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1766362682004340736 |
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ftunivstirling:oai:dspace.stir.ac.uk:1893/21331 2023-05-15T15:32:11+02:00 Reservoir hosts for Gyrodactylus salaris may play a more significant role in epidemics than previously thought Paladini, Giuseppe Hansen, Haakon Williams, Chris F Taylor, Nicholas G H Rubio-Mejia, Olga L Denholm, Scott J Hytterod, Sigurd Bron, James Shinn, Andrew Institute of Aquaculture National Veterinary Institute Environment Agency CEFAS - Centre for Environment, Fisheries and Aquaculture Science University of Stirling Scotland's Rural College (SRUC) orcid:0000-0003-4944-0499 orcid:0000-0003-3544-0519 orcid:0000-0002-5434-2685 2014-12-20 application/pdf http://hdl.handle.net/1893/21331 https://doi.org/10.1186/s13071-014-0576-5 http://dspace.stir.ac.uk/bitstream/1893/21331/1/Paladini_Parasites%20and%20Vectors%202014.pdf en eng BioMed Central Paladini G, Hansen H, Williams CF, Taylor NGH, Rubio-Mejia OL, Denholm SJ, Hytterod S, Bron J & Shinn A (2014) Reservoir hosts for Gyrodactylus salaris may play a more significant role in epidemics than previously thought. Parasites and Vectors, 7, Art. No.: 576. https://doi.org/10.1186/s13071-014-0576-5 576 http://hdl.handle.net/1893/21331 doi:10.1186/s13071-014-0576-5 25526740 WOS:000348945800001 2-s2.0-84989180585 607087 http://dspace.stir.ac.uk/bitstream/1893/21331/1/Paladini_Parasites%20and%20Vectors%202014.pdf © Paladini et al.; licensee BioMed Central This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated. http://creativecommons.org/licenses/by/4.0/ CC0 PDM CC-BY Parasite Salmo salar Atlantic salmon Salmo trutta Brown trout Thymallus thymallus Grayling Susceptibility Monogenea Pathogen Journal Article AM - Accepted Manuscript 2014 ftunivstirling https://doi.org/10.1186/s13071-014-0576-5 2022-06-13T18:43:34Z Background: Gyrodactylus salaris Malmberg, 1957 has had a devastating impact on wild Norwegian stocks of Atlantic salmon Salmo salar L., and it is the only Office International des Epizooties (OIE) listed parasitic pathogen of fish. The UK is presently recognised as G. salaris-free, and management plans for its containment and control are currently based on Scandinavian studies. The current study investigates the susceptibility of British salmonids to G. salaris, and determines whether, given the host isolation since the last glaciation and potential genetic differences, the populations under test would exhibit different levels of susceptibility, as illustrated by the parasite infection trajectory over time, from their Scandinavian counterparts. Methods: Populations of S. salar, brown trout Salmo trutta L., and grayling Thymallus thymallus (L.), raised from wild stock in UK government hatcheries, were flown to Norway and experimentally challenged with a known pathogenic strain of G. salaris. Each fish was lightly anaesthetised and marked with a unique tattoo for individual parasite counting. A single Norwegian population of S. salar from the River Lærdalselva was used as a control. Parasite numbers were assessed every seven days until day 48 and then every 14 days. Results: Gyrodactylus salaris regularly leads to high mortalities on infected juveniles S. salar. The number of G. salaris on British S. salar rose exponentially until the experiment was terminated at 33 days due to fish welfare concerns. The numbers of parasites on S. trutta and T. thymallus increased sharply, reaching a peak of infection on days 12 and 19 post-infection respectively, before declining to a constant low level of infection until the termination of the experiment at 110 days. Conclusions: The ability of S. trutta and T. thymallus to carry an infection for long periods increases the window of exposure for these two hosts and the potential transfer of G. salaris to other susceptible hosts. This study demonstrates that G. salaris can ... Article in Journal/Newspaper Atlantic salmon Salmo salar University of Stirling: Stirling Digital Research Repository Norway Parasites & Vectors 7 1 |