Prospective Longitudinal Study of Putative Agents Involved in Complex Gill Disorder in Atlantic salmon (Salmo salar)
Complex gill disorder (CGD) is an important condition in Atlantic salmon aquaculture, but the roles of the putative aetiological agents in the pathogenesis are uncertain. A longitudinal study was undertaken on two salmon farms in Scotland to determine the variations in loads of CGD-associated pathog...
Published in: | Pathogens |
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MDPI AG
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Online Access: | http://hdl.handle.net/1893/34867 https://doi.org/10.3390/pathogens11080878 http://dspace.stir.ac.uk/retrieve/43ed5d3c-f81c-4ea0-b0c7-9994ffefafd1/pathogens-11-00878-v2.pdf |
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ftunivstirling:oai:dspace.stir.ac.uk:1893/34867 2023-05-15T15:31:40+02:00 Prospective Longitudinal Study of Putative Agents Involved in Complex Gill Disorder in Atlantic salmon (Salmo salar) Herrero, Ana Rodger, Hamish Hayward, Adam D Cousens, Chris Bron, James E Dagleish, Mark P Thompson, Kim D Moredun Research Institute The Moredun Research Institute VAI Consulting Institute of Aquaculture orcid:0000-0002-2484-2769 orcid:0000-0002-5336-8912 orcid:0000-0001-6953-7509 orcid:0000-0003-3995-5472 orcid:0000-0003-3544-0519 orcid:0000-0003-3550-4842 2022-08 application/pdf http://hdl.handle.net/1893/34867 https://doi.org/10.3390/pathogens11080878 http://dspace.stir.ac.uk/retrieve/43ed5d3c-f81c-4ea0-b0c7-9994ffefafd1/pathogens-11-00878-v2.pdf en eng MDPI AG Herrero A, Rodger H, Hayward AD, Cousens C, Bron JE, Dagleish MP & Thompson KD (2022) Prospective Longitudinal Study of Putative Agents Involved in Complex Gill Disorder in Atlantic salmon (Salmo salar). Pathogens , 11 (8), Art. No.: 878. https://doi.org/10.3390/pathogens11080878 878 http://hdl.handle.net/1893/34867 doi:10.3390/pathogens11080878 1875604 http://dspace.stir.ac.uk/retrieve/43ed5d3c-f81c-4ea0-b0c7-9994ffefafd1/pathogens-11-00878-v2.pdf © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). http://creativecommons.org/licenses/by/4.0/ CC-BY aquatic animals emerging diseases pathogens complex gill disease Desmozoon lepeophtherii Paranucleospora theridion Candidatus Branchiomonas cysticola salmon gill poxvirus Neoparamoeba perurans amoebic gill disease Journal Article VoR - Version of Record 2022 ftunivstirling https://doi.org/10.3390/pathogens11080878 2023-02-23T23:17:31Z Complex gill disorder (CGD) is an important condition in Atlantic salmon aquaculture, but the roles of the putative aetiological agents in the pathogenesis are uncertain. A longitudinal study was undertaken on two salmon farms in Scotland to determine the variations in loads of CGD-associated pathogens (Desmozoon lepeophtherii, Candidatus Branchiomonas cysticola, salmon gill pox virus (SGPV) and Neoparamoeba perurans) estimated by quantitative PCR. In freshwater, Ca. B. cysticola and SGPV were detected in both populations, but all four pathogens were detected on both farms during the marine stage. Candidatus B. cysticola and D. lepeophtherii were detected frequently, with SGPV detected sporadically. In the marine phase, increased N. perurans loads associated significantly (p < 0.05) with increases in semi-quantitative histological gill-score (HGS). Increased Ca. B. cysticola load associated significantly (p < 0.05) with increased HGS when only Farm B was analysed. Higher loads of D. lepeophtherii were associated significantly (p < 0.05) with increased HGS on Farm B despite the absence of D. lepeophtherii-type microvesicles. Variations in SGPV were not associated significantly (p > 0.05) with changes in HSG. This study also showed that water temperature (season) and certain management factors were associated with higher HGS. This increase in histological gill lesions will have a deleterious impact on fish health and welfare, and production performance Article in Journal/Newspaper Atlantic salmon Salmo salar University of Stirling: Stirling Digital Research Repository Pathogens 11 8 878 |
institution |
Open Polar |
collection |
University of Stirling: Stirling Digital Research Repository |
op_collection_id |
ftunivstirling |
language |
English |
topic |
aquatic animals emerging diseases pathogens complex gill disease Desmozoon lepeophtherii Paranucleospora theridion Candidatus Branchiomonas cysticola salmon gill poxvirus Neoparamoeba perurans amoebic gill disease |
spellingShingle |
aquatic animals emerging diseases pathogens complex gill disease Desmozoon lepeophtherii Paranucleospora theridion Candidatus Branchiomonas cysticola salmon gill poxvirus Neoparamoeba perurans amoebic gill disease Herrero, Ana Rodger, Hamish Hayward, Adam D Cousens, Chris Bron, James E Dagleish, Mark P Thompson, Kim D Prospective Longitudinal Study of Putative Agents Involved in Complex Gill Disorder in Atlantic salmon (Salmo salar) |
topic_facet |
aquatic animals emerging diseases pathogens complex gill disease Desmozoon lepeophtherii Paranucleospora theridion Candidatus Branchiomonas cysticola salmon gill poxvirus Neoparamoeba perurans amoebic gill disease |
description |
Complex gill disorder (CGD) is an important condition in Atlantic salmon aquaculture, but the roles of the putative aetiological agents in the pathogenesis are uncertain. A longitudinal study was undertaken on two salmon farms in Scotland to determine the variations in loads of CGD-associated pathogens (Desmozoon lepeophtherii, Candidatus Branchiomonas cysticola, salmon gill pox virus (SGPV) and Neoparamoeba perurans) estimated by quantitative PCR. In freshwater, Ca. B. cysticola and SGPV were detected in both populations, but all four pathogens were detected on both farms during the marine stage. Candidatus B. cysticola and D. lepeophtherii were detected frequently, with SGPV detected sporadically. In the marine phase, increased N. perurans loads associated significantly (p < 0.05) with increases in semi-quantitative histological gill-score (HGS). Increased Ca. B. cysticola load associated significantly (p < 0.05) with increased HGS when only Farm B was analysed. Higher loads of D. lepeophtherii were associated significantly (p < 0.05) with increased HGS on Farm B despite the absence of D. lepeophtherii-type microvesicles. Variations in SGPV were not associated significantly (p > 0.05) with changes in HSG. This study also showed that water temperature (season) and certain management factors were associated with higher HGS. This increase in histological gill lesions will have a deleterious impact on fish health and welfare, and production performance |
author2 |
Moredun Research Institute The Moredun Research Institute VAI Consulting Institute of Aquaculture orcid:0000-0002-2484-2769 orcid:0000-0002-5336-8912 orcid:0000-0001-6953-7509 orcid:0000-0003-3995-5472 orcid:0000-0003-3544-0519 orcid:0000-0003-3550-4842 |
format |
Article in Journal/Newspaper |
author |
Herrero, Ana Rodger, Hamish Hayward, Adam D Cousens, Chris Bron, James E Dagleish, Mark P Thompson, Kim D |
author_facet |
Herrero, Ana Rodger, Hamish Hayward, Adam D Cousens, Chris Bron, James E Dagleish, Mark P Thompson, Kim D |
author_sort |
Herrero, Ana |
title |
Prospective Longitudinal Study of Putative Agents Involved in Complex Gill Disorder in Atlantic salmon (Salmo salar) |
title_short |
Prospective Longitudinal Study of Putative Agents Involved in Complex Gill Disorder in Atlantic salmon (Salmo salar) |
title_full |
Prospective Longitudinal Study of Putative Agents Involved in Complex Gill Disorder in Atlantic salmon (Salmo salar) |
title_fullStr |
Prospective Longitudinal Study of Putative Agents Involved in Complex Gill Disorder in Atlantic salmon (Salmo salar) |
title_full_unstemmed |
Prospective Longitudinal Study of Putative Agents Involved in Complex Gill Disorder in Atlantic salmon (Salmo salar) |
title_sort |
prospective longitudinal study of putative agents involved in complex gill disorder in atlantic salmon (salmo salar) |
publisher |
MDPI AG |
publishDate |
2022 |
url |
http://hdl.handle.net/1893/34867 https://doi.org/10.3390/pathogens11080878 http://dspace.stir.ac.uk/retrieve/43ed5d3c-f81c-4ea0-b0c7-9994ffefafd1/pathogens-11-00878-v2.pdf |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_relation |
Herrero A, Rodger H, Hayward AD, Cousens C, Bron JE, Dagleish MP & Thompson KD (2022) Prospective Longitudinal Study of Putative Agents Involved in Complex Gill Disorder in Atlantic salmon (Salmo salar). Pathogens , 11 (8), Art. No.: 878. https://doi.org/10.3390/pathogens11080878 878 http://hdl.handle.net/1893/34867 doi:10.3390/pathogens11080878 1875604 http://dspace.stir.ac.uk/retrieve/43ed5d3c-f81c-4ea0-b0c7-9994ffefafd1/pathogens-11-00878-v2.pdf |
op_rights |
© 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). http://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3390/pathogens11080878 |
container_title |
Pathogens |
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11 |
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8 |
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878 |
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