Effects of temperature on amoebic gill disease development: does it play a role?
A relationship between increasing water temperature and amoebic gill disease (AGD) prevalence in Atlantic salmon (Salmo salar) has been noted at fish farms in numerous countries. In Scotland (UK), temperatures above 12°C are considered to be an important risk factor for AGD outbreaks. Thus, the purp...
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ftnerc:oai:nora.nerc.ac.uk:524687 2023-05-15T15:31:23+02:00 Effects of temperature on amoebic gill disease development: does it play a role? Benedicenti, Ottavia Pottinger, Tom G. Collins, Catherine Secombes, Christopher J. 2019-09 text http://nora.nerc.ac.uk/id/eprint/524687/ https://nora.nerc.ac.uk/id/eprint/524687/1/N524687PP.pdf https://doi.org/10.1111/jfd.13047 en eng Wiley https://nora.nerc.ac.uk/id/eprint/524687/1/N524687PP.pdf Benedicenti, Ottavia; Pottinger, Tom G.; Collins, Catherine; Secombes, Christopher J. 2019 Effects of temperature on amoebic gill disease development: does it play a role? Journal of Fish Diseases, 42 (9). 1241-1258. https://doi.org/10.1111/jfd.13047 <https://doi.org/10.1111/jfd.13047> Zoology Biology and Microbiology Publication - Article PeerReviewed 2019 ftnerc https://doi.org/10.1111/jfd.13047 2023-02-04T19:49:01Z A relationship between increasing water temperature and amoebic gill disease (AGD) prevalence in Atlantic salmon (Salmo salar) has been noted at fish farms in numerous countries. In Scotland (UK), temperatures above 12°C are considered to be an important risk factor for AGD outbreaks. Thus, the purpose of this study was to test for the presence of an association between temperature and variation in the severity of AGD in Atlantic salmon at 10 and 15°C. The results showed an association between temperature and variation in AGD severity in salmon from analysis of histopathology and Paramoeba perurans load, reflecting an earlier and stronger infection post‐amoebae exposure at the higher temperature. While no significant difference between the two temperature treatment groups was found in plasma cortisol levels, both glucose and lactate levels increased when gill pathology was evident at both temperatures. Expression analysis of immune‐ and stress‐related genes showed more modulation in gills than in head kidney, revealing an organ‐specific response and an interplay between temperature and infection. In conclusion, temperature may not only affect the host response, but perhaps also favour higher attachment/growth capacity of the amoebae as seen with the earlier and stronger P. perurans infection at 15°C. Article in Journal/Newspaper Atlantic salmon Salmo salar Natural Environment Research Council: NERC Open Research Archive Journal of Fish Diseases 42 9 1241 1258 |
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Open Polar |
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Natural Environment Research Council: NERC Open Research Archive |
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ftnerc |
language |
English |
topic |
Zoology Biology and Microbiology |
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Zoology Biology and Microbiology Benedicenti, Ottavia Pottinger, Tom G. Collins, Catherine Secombes, Christopher J. Effects of temperature on amoebic gill disease development: does it play a role? |
topic_facet |
Zoology Biology and Microbiology |
description |
A relationship between increasing water temperature and amoebic gill disease (AGD) prevalence in Atlantic salmon (Salmo salar) has been noted at fish farms in numerous countries. In Scotland (UK), temperatures above 12°C are considered to be an important risk factor for AGD outbreaks. Thus, the purpose of this study was to test for the presence of an association between temperature and variation in the severity of AGD in Atlantic salmon at 10 and 15°C. The results showed an association between temperature and variation in AGD severity in salmon from analysis of histopathology and Paramoeba perurans load, reflecting an earlier and stronger infection post‐amoebae exposure at the higher temperature. While no significant difference between the two temperature treatment groups was found in plasma cortisol levels, both glucose and lactate levels increased when gill pathology was evident at both temperatures. Expression analysis of immune‐ and stress‐related genes showed more modulation in gills than in head kidney, revealing an organ‐specific response and an interplay between temperature and infection. In conclusion, temperature may not only affect the host response, but perhaps also favour higher attachment/growth capacity of the amoebae as seen with the earlier and stronger P. perurans infection at 15°C. |
format |
Article in Journal/Newspaper |
author |
Benedicenti, Ottavia Pottinger, Tom G. Collins, Catherine Secombes, Christopher J. |
author_facet |
Benedicenti, Ottavia Pottinger, Tom G. Collins, Catherine Secombes, Christopher J. |
author_sort |
Benedicenti, Ottavia |
title |
Effects of temperature on amoebic gill disease development: does it play a role? |
title_short |
Effects of temperature on amoebic gill disease development: does it play a role? |
title_full |
Effects of temperature on amoebic gill disease development: does it play a role? |
title_fullStr |
Effects of temperature on amoebic gill disease development: does it play a role? |
title_full_unstemmed |
Effects of temperature on amoebic gill disease development: does it play a role? |
title_sort |
effects of temperature on amoebic gill disease development: does it play a role? |
publisher |
Wiley |
publishDate |
2019 |
url |
http://nora.nerc.ac.uk/id/eprint/524687/ https://nora.nerc.ac.uk/id/eprint/524687/1/N524687PP.pdf https://doi.org/10.1111/jfd.13047 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_relation |
https://nora.nerc.ac.uk/id/eprint/524687/1/N524687PP.pdf Benedicenti, Ottavia; Pottinger, Tom G.; Collins, Catherine; Secombes, Christopher J. 2019 Effects of temperature on amoebic gill disease development: does it play a role? Journal of Fish Diseases, 42 (9). 1241-1258. https://doi.org/10.1111/jfd.13047 <https://doi.org/10.1111/jfd.13047> |
op_doi |
https://doi.org/10.1111/jfd.13047 |
container_title |
Journal of Fish Diseases |
container_volume |
42 |
container_issue |
9 |
container_start_page |
1241 |
op_container_end_page |
1258 |
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1766361881198460928 |